TW201711561A - Coated rice seed and method for producing same - Google Patents

Abstract

Provided is a coated rice seed comprising a coating layer, said coating layer including zinc oxide, a surfactant, and at least one selected from group (A) below. Group (A): a group consisting of an acrylic resin, polyvinyl acetate resin, urethane resin, and butadiene copolymer.

Description

Coated rice seed and preparation method thereof

The present invention relates to coated rice seeds and methods of making the same.

Direct seeding cultivation of rice is a cultivation method in which rice seeds are directly sprinkled on paddy fields. Since there is no need for seedling raising or transplanting, there is an advantage that the farming operation can be saved, and the like, but on the other hand, it is easy to suffer from birds such as ducks or sparrows. Disadvantages of agricultural damage (bird damage) caused by eating. Since the reduction in the emergence rate caused by bird damage will lead to a poor harvest, it is urgent to take countermeasures against birds. For example, a method for preventing bird damage by water management has been proposed, but it is necessary to change the management method depending on the type of bird (for example, refer to Non-Patent Document 1).

In addition, the technique of preventing the damage caused by the eating of the sparrows is known (for example, see Non-Patent Document 2). However, since the technique is to cure by oxidizing iron powder, it is necessary to dissipate heat generated during oxidation, and the management of the coated rice seeds is extremely troublesome; and if the management is insufficient, there is The problem of reduced germination rate. As a solution to such problems, for example, there is known a A technique of coating rice seeds with a coating material such as polyvinyl alcohol having a high degree of saponification and iron oxide (see Patent Document 1).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2013-146266

[Non-patent literature]

[Non-Patent Document 1] Sakai Kazuo, three foreigners, "The prevention of bird damage in the cultivation of rice in the field of live water cultivation", The Hokuriku Crop Science, Japan Crop Society, March 31, 1999, Volume 34, p.59-61

[Non-Patent Document 2] Yamauchi, "Iron-coated Zhanshui Live Manual 2010", Independent Administrative Corporation Agriculture, Food Industry Technology Research Institute, near China's Four Agricultural Research Center, March 2010

However, the bird damage prevention effect of rice seeds coated with iron oxide is currently insufficient.

The present invention provides a coated rice seed which is less susceptible to bird damage and which can suppress the decrease in seed germination and germination rate.

As a result of research conducted to solve such a problem, the inventors of the present invention found that if rice seeds are coated with zinc oxide, a specific synthetic resin, and a surfactant, and sown in a paddy field, bird damage can be alleviated, and rice cultivation can be ensured. Full seedling rate.

That is, the present invention is as follows.

[item 1]

A coated rice seed having a coated layer of coated rice seeds, the coating layer comprising zinc oxide, a surfactant, and at least one selected from the group (A) below; Group (A): a group composed of an acrylic resin, a vinyl acetate resin, a urethane resin, and a butadiene copolymer.

[item 2]

A coated rice seed having a coated layer of coated rice seeds, the coating layer comprising zinc oxide and at least one selected from the group (A) below, and a surfactant It is at least maintained on the surface; Group (A): a group composed of an acrylic resin, a vinyl acetate resin, a urethane resin, and a butadiene copolymer.

[item 3]

The coated rice seed of item 1 or 2, wherein said coating layer comprises at least one selected from the group consisting of: (B): from titanium oxide, magnesium oxide, clay, zeolite, sulfuric acid A group of strontium and calcium carbonate.

[item 4]

The coated rice seed according to Item 3, wherein the coating layer has a first layer containing at least one selected from the group (B) and a zinc oxide containing the outer layer provided on the outer side of the first layer. The second layer is made.

[item 5]

The coated rice seed according to any one of items 1 to 3, wherein the aforementioned coating layer further comprises iron oxide.

[item 6]

The coated rice seed according to Item 5, wherein the coating layer has a first layer containing iron oxide and a second layer containing zinc oxide disposed outside the first layer.

[item 7]

a powdery composition having an average particle diameter of 0.01 to 150 μm, which comprises zinc oxide and at least one selected from the group (B) below; and a group (B): titanium oxide, magnesium oxide, clay, a group of zeolites, barium sulfate, and calcium carbonate.

[item 8]

A powdery composition comprising zinc oxide, at least one selected from the group consisting of the following group (B), and at least one selected from the group (C) below; and the group (B): titanium oxide, magnesium oxide, a group consisting of clay, zeolite, barium sulfate, and calcium carbonate; group (C): a group consisting of an acrylic resin and a vinyl acetate resin.

[item 9]

a powdery composition comprising zinc oxide and iron oxide, zinc oxide The weight ratio to iron oxide is in the range of 1:1000 to 1:1, and the average particle diameter is in the range of 0.01 to 150 μm.

[item 10]

A powdery composition comprising zinc oxide, iron oxide and an acrylic resin.

[item 11]

The powdery composition according to any one of items 7 to 10, which has an apparent specific gravity of from 0.30 to 2.50 g/mL.

[item 12]

The powdery composition according to any one of items 7 to 10, which has an apparent specific gravity of from 0.30 to 2.0 g/mL.

[item 13]

The powdery composition according to any one of items 7 to 12, wherein the zinc oxide has an average particle diameter of 0.01 to 100 μm.

[item 14]

A kit for producing coated rice seeds, which comprises at least one of zinc oxide, a surfactant and at least one selected from the group (A); group (A): acrylic resin, vinyl acetate A group consisting of an ester resin, a urethane resin, and a butadiene copolymer.

[item 15]

The kit of item 14, which further comprises iron oxide.

[item 16]

A kit according to item 14 or 15 which has a group (B) selected from the group consisting of At least one type; group (B): a group consisting of titanium oxide, magnesium oxide, clay, zeolite, barium sulfate, and calcium carbonate.

[item 17]

A method for producing a coated rice seed, which comprises the steps of: (1) adding at least one aqueous dispersion selected from the group (A) below and zinc oxide while rotating the rice seed; Further, a step of forming a coating layer containing at least one selected from the group (A) and zinc oxide; (2) adding a surfactant while rotating the seed obtained in the step (1), and making the interface a step of maintaining the active agent on the outer side of the layer formed in the above step (1); and (3) a step of drying the seed obtained in the above step (2); group (A): an acrylic resin, a vinyl acetate resin A group of urethane resins and butadiene copolymers.

[item 18]

A method for producing a coated rice seed, which comprises the steps of: (1) adding at least one aqueous dispersion selected from the group (A) below, while rotating the rice seed, selected from the group consisting of At least one of the group (B) and zinc oxide are formed of a coating layer containing at least one selected from the group (A) below and at least one selected from the group (B) below and zinc oxide. Step (2) adding a surfactant while rotating the seed obtained in the above step (1) to maintain the surfactant in the above step (1) a step of forming the outer side of the layer; and (3) a step of drying the seed obtained in the above step (2); group (A): comprising an acrylic resin, a vinyl acetate resin, a urethane resin, and a dibutyl Group of olefin copolymers; group (B): a group consisting of titanium oxide, magnesium oxide, clay, zeolite, barium sulfate, and calcium carbonate.

[item 19]

A method for producing a coated rice seed, which comprises the steps of: (1) (I) adding at least one aqueous dispersion selected from the group (A) below while rotating the rice seed; a step of forming at least one selected from the group (B) below and forming at least one selected from the group (A) below and at least one selected from the group (B) below, and (II) A layer formed in the above step (I) by adding at least one aqueous dispersion selected from the group (A) below and zinc oxide while rotating the seed obtained in the above step (I) The outer side is a step of forming a coating layer containing at least one selected from the group (A) below and zinc oxide; and (2) adding a surfactant while rotating the seed obtained in the step (1); a step of maintaining the surfactant on the outside of the layer formed in the aforementioned step (1); and (3) a step of drying the seed obtained in the above step (2); Group (A): from acrylic resin, vinyl acetate a group consisting of a resin, a urethane resin, and a butadiene copolymer; Group (B): from titanium oxide, magnesium oxide, clay, zeolite, barium sulfate And a group of calcium carbonate.

[item 20]

A method for producing a coated rice seed, which comprises the steps of: (1) adding at least one aqueous dispersion selected from the group (A) below, zinc oxide, and the like while rotating the rice seed; a step of forming a coating layer containing at least one selected from the group (A) below, zinc oxide and iron oxide, and (2) adding the seed obtained in the step (1) while rotating a surfactant, a step of maintaining the surfactant on the outside of the layer formed in the above step (1); and (3) a step of drying the seed obtained in the above step (2); Group (A): from acrylic acid A group consisting of a resin, a vinyl acetate resin, a urethane resin, and a butadiene copolymer.

[item 21]

A method for producing a coated rice seed, which comprises the steps of: (1) (i) adding at least one aqueous dispersion selected from the group (A) below while rotating the rice seed; And the step of forming the coating layer containing at least one selected from the group (A) and the iron oxide, and (ii) rotating the seed obtained in the step (i) while adding At least one aqueous dispersion of the following group (A) and zinc oxide, and the outer side of the layer formed in the above step (i) is made to contain at least one selected from the group (A) below and zinc oxide. a step of forming a coating layer; (2) adding a interface while rotating the seed obtained in the above step (1) a step of maintaining the surfactant on the outer side of the layer formed in the above step (1); and (3) a step of drying the seed obtained in the above step (2); group (A): from an acrylic resin A group consisting of a vinyl acetate resin, a urethane resin, and a butadiene copolymer.

[item 22]

A coated rice seed produced by the production method according to any one of items 17 to 21.

The coated rice seeds of the present invention are not susceptible to bird damage, and can inhibit the floating and germination rate of the seeds, and ensure sufficient emergence rate for direct seeding cultivation of rice.

1‧‧‧Axis

2‧‧‧Polyethylene cup

3‧‧‧Mixer

4‧‧‧ bracket table

Fig. 1 is an explanatory view for explaining a simple seed coating machine for coating a rice seed in the examples.

[Formation of the Invention]

The coated rice seed of the present invention (hereinafter referred to as a rice seed) has a coating layer characterized in that the coating layer contains zinc oxide, a surfactant, and at least one selected from the group (A). (hereinafter referred to as a synthetic resin), or the aforementioned coating layer contains zinc oxide and the present synthetic tree The fat, and the surfactant is maintained at least on the surface.

In the present invention, the rice seed refers to a seed belonging to a variety generally cultivated by rice.

Examples of the variety include indica or japonica rice, and those having high lodging resistance or germination properties are preferred.

In the present invention, zinc oxide refers to a compound represented by ZnO, and commercially available zinc oxide can be used. As a commercially available zinc oxide, for example, zinc oxide 3N5 (manufactured by Kanto Chemical Co., Ltd.) and zinc oxide (manufactured by Nippon Chemical Industry Co., Ltd.) can be mentioned. In the present invention, zinc oxide having a purity of 99% or more (% by weight relative to the zinc oxide) is preferably used. The purity of zinc oxide can be determined by a test method specified in Japanese Industrial Standards (JIS) K1410. Further, powdered zinc oxide is usually used, and the zinc oxide has an average particle diameter of 0.01 to 100 μm, preferably 0.1 to 50 μm, more preferably 0.1 to 10 μm. In the present invention, the average particle diameter of zinc oxide is a particle diameter measured by a laser diffraction/scattering type particle size distribution measuring apparatus, and means a particle diameter having a cumulative frequency of 50% in a volume-based frequency distribution. The average particle diameter of zinc oxide can be measured by a so-called wet type measurement method in which a zinc oxide particle is dispersed in water by using a Mastersizer 2000 (manufactured by Malvern) which is a laser diffraction/scattering type particle size distribution measuring apparatus. Seek.

The content of zinc oxide in the rice seed is usually from 0.005 to 80% by weight, preferably from 0.05 to 70% by weight, more preferably from 0.1 to 50% by weight. It is preferably in the range of 0.1 to 15% by weight in consideration of the growth of the plant and the influence on the environment.

As the surfactant in the present invention, it is preferably selected from nonionic At least one of the group consisting of a surfactant and an anionic surfactant is more preferably at least one selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene aryl phenyl ether, and sulfonate. Further, the polyoxyethylene aryl phenyl ether is preferably polyoxyethylene polystyrene phenyl ether, and the sulfonic acid salt is preferably selected from the group consisting of naphthalene sulfonate and its formaldehyde condensate, phenol sulfonate and At least one of a group consisting of a formaldehyde condensate and a lignosulfonate.

Examples of the polyoxyethylene alkyl ether include polyoxyethylene stearyl ether and polyoxyethylene trilauryl ether. The polyoxyethylene polystyrylphenyl ether is exemplified by polyoxyethylene tristyrylphenyl ether. Examples of the naphthalenesulfonate and the formaldehyde condensate thereof include a formaldehyde condensate of sodium naphthalenesulfonate; and the phenolsulfonate and a formaldehyde condensate thereof include a formaldehyde condensate of sodium phenolsulfonate; The lignosulfonate is exemplified by sodium lignosulfonate. These surfactants are commercially available, and, for example, commercially available polyoxyethylene tristyrylphenyl ether, SORPOL 5080 (manufactured by Toho Chemical Industry Co., Ltd.); commercially available naphthalenesulfonic acid A sodium condensate of sodium is exemplified by New Kargen PS-P (manufactured by Takemoto Oil Co., Ltd.).

In the present invention, a powdery surfactant is preferably used, and a surfactant having a particle size distribution of 2% or less of particles having a size of 100 μm or more is preferably used. In the present invention, the particle size distribution of the surfactant means a particle size distribution measured by a sieving method; the so-called "particle size distribution of particles having a size of 100 μm or more is 2% or less", which means that the sieve has a pore size of 100 μm. The weight ratio of the amount to the total amount is 2% or less. The particle size distribution of the surfactant can be placed on a sieve having a pore size of 100 μm (the diameter of the frame is 200 mm, and the depth is 45 mm, the test sieve specified in Japanese Industrial Standard (JIS) Z8801-1). 10 g of the surfactant was sieved for 10 minutes by a sieving apparatus such as a Rote-type vibrator, and the weight of the surfactant remaining on the metering sieve was calculated according to the following formula.

Residual amount on the sieve (%) = weight of the surfactant remaining on the sieve (g) / weight of the surfactant initially placed on the sieve (g) × 100

The content of the surfactant in the rice seed is usually from 0.002 to 6% by weight, preferably from 0.01 to 5% by weight, more preferably from 0.1 to 2% by weight.

The present synthetic resin will be described below.

In the present invention, the acrylic resin means a polymer compound obtained by reacting at least one of an alkyl acrylate or an alkyl methacrylate as a monomer. Examples of the alkyl acrylate include methyl acrylate, ethyl acrylate, butyl acrylate, and 2-ethylhexyl acrylate; and examples of the alkyl methacrylate include methyl methacrylate.

The vinyl acetate resin refers to a polymer compound obtained by reacting at least one of vinyl acetate as a monomer.

The urethane resin is a polymer compound obtained by reacting a polyisocyanate with a polyhydric alcohol, and examples of the polyisocyanate include fats such as hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI). The isocyanate; examples of the polyhydric alcohol include polyester polyols such as polyether polyols such as polyethylene glycol and polypropylene glycol, polyethylene adipate glycol, and polybutylene adipate diol. A polycarbonate polyol such as polybutylene carbonate butyl acrylate or polyhexyl carbonate.

Butadiene copolymer means 1,3-butadiene (described below as butadiene) And a copolymer of at least one monomer copolymerizable therewith.

The acrylic resin is preferably a copolymer of at least one selected from the group consisting of an alkyl acrylate or an alkyl methacrylate and a group consisting of an aromatic vinyl monomer, an olefin monomer, and a fluorene macromonomer. . The aromatic vinyl monomer may, for example, be styrene, and the olefin monomer may, for example, be ethylene. Specific examples of the acrylic resin include a copolymer of an alkyl acrylate and an alkyl methacrylate (Mowinyl-Powder LDM7000P manufactured by Nippon Synthetic Chemical Co., Ltd.), an alkyl acrylate and styrene. Copolymer (Mowinyl 6485, manufactured by Nippon Synthetic Chemical Co., Ltd.), copolymer of alkyl acrylate and oxime macromonomer (Mowinyl 7110, manufactured by Nippon Synthetic Chemical Co., Ltd.), and ethylene and alkyl methacrylate Copolymer of ester (Nucrel N1108C, manufactured by DU PONT-MITSUI POLYCHEMICALS Co., Ltd.).

In the case of the aforementioned vinyl acetate resin, vinyl acetate is preferably selected from the group consisting of alkyl acrylate, alkyl methacrylate, vinyl neodecanoate, olefin monomer, halogenated olefin monomer and unsaturated dicarboxylic acid. A copolymer of at least one of the constituent groups. Examples of the alkyl acrylate include methyl acrylate, ethyl acrylate, butyl acrylate, and 2-ethylhexyl acrylate; and examples of the alkyl methacrylate include methyl methacrylate. Examples of the olefin monomer include ethylene; and examples of the halogenated olefin monomer include vinyl chloride and vinylidene chloride; and examples of the unsaturated dicarboxylic acid include maleic acid. Specific examples of the vinyl acetate resin include a copolymer of vinyl acetate and vinyl neodecanoate and an alkyl acrylate (Mowinyl-Powder LDM2072P manufactured by Synthetic Chemical Industry Co., Ltd.), and vinyl acetate. versus Copolymer of ethylene (Mowinyl 180E, manufactured by Nippon Synthetic Chemical Co., Ltd.) and copolymer of ethylene and vinyl acetate with vinyl chloride (Sumikaflex 808HQ, manufactured by Sumika Chemtex Co., Ltd.).

The urethane resin is preferably an aliphatic isocyanate and at least one polymerized urethane resin selected from the group consisting of polyester polyols and polycarbonate polyols. Specific examples of the urethane resin include a urethane resin obtained by polymerizing an aliphatic isocyanate and a polyester polyol (SUPERFLEX 500M manufactured by Daiichi Kogyo Co., Ltd.) and fat. A urethane resin obtained by polymerizing a polyisocyanate and a polycarbonate polyol (SUPERFLEX 460, manufactured by Dai-ichi Kogyo Co., Ltd.).

The butadiene copolymer is preferably a copolymer of butadiene and at least one selected from the group consisting of alkyl methacrylates and aromatic vinyl monomers.

Examples of the alkyl methacrylate include methyl methacrylate; and examples of the aromatic vinyl monomer include styrene. Specific examples of the butadiene copolymer include a copolymer of butadiene and styrene (hereinafter referred to as a butadiene-styrene copolymer), butadiene and styrene and methyl methacrylate. Copolymer (hereinafter referred to as butadiene-styrene-methyl methacrylate copolymer), carboxylated butadiene-styrene copolymer (NALSTAR SR103 manufactured by A&L Co., Ltd., Japan), and carboxylation Butadiene-styrene-methyl methacrylate copolymer (NALSTAR SR140, manufactured by A&L Co., Ltd., Japan).

The glass transition point (Tg) of the synthetic resin is usually 50 ° C or lower, preferably 50 ° C to 50 ° C. Further, it is preferred to use the present synthetic resin having a minimum film forming temperature (MFT) of 10 ° C or lower.

The form of the present synthetic resin in the present invention is latex or powder. The latex refers to an aqueous dispersion of fine particles of a synthetic resin, and the average particle diameter of the fine particles is usually 1 μm or less. In the present invention, the average particle diameter of the fine particles of the synthetic resin in the latex is a particle diameter measured by a laser diffraction ‧ scattering type particle size distribution measuring device, and means a cumulative frequency of 50% in the volume reference frequency distribution. Particle size. The average particle diameter of the fine particles of the synthetic resin can be measured by a Mastersizer 2000 (manufactured by Malvern) which is a laser diffraction/scattering type particle size distribution measuring apparatus, and a method of measuring the fine particles of the synthetic resin in water. Determined by measurement.

Further, the content of the synthetic resin in the latex is usually about 30 to 70% (% by weight relative to the latex). In addition, Mowinyl 6485 (copolymer of alkyl acrylate and styrene) manufactured by Nippon Synthetic Chemical Co., Ltd., and NALSTAR SR140 manufactured by A&L Co., Ltd., as a synthetic resin which is commercially available as a latex, may be mentioned. (Carboxylated butadiene-styrene-methyl methacrylate copolymer), Sumikaflex 808HQ manufactured by Sumika Chemtex Co., Ltd. (copolymer of ethylene and vinyl acetate and vinyl chloride) and First Industrial Pharmaceutical Co., Ltd. SUPERFLEX 500M (a urethane resin obtained by polymerizing an aliphatic isocyanate with a polyester polyol).

Powdered synthetic resins are generally obtained by spray drying a latex. The particle size of the powdery synthetic resin is usually 1000 μm or less, preferably Below 500μm. In the present invention, the particle size of the powdery synthetic resin refers to the particle diameter measured by the sieving method, and the total amount of the powdery synthetic resin is a permeable sieve (the frame industry has a diameter of 200 mm and a depth of 45 mm). The minimum value of the pore diameter of the test sieve specified in the specification (JIS) Z8801-1.

Moreover, as a synthetic resin which is in the form of a powder and is commercially available, Mowinyl-Powder DM2072P (a copolymer of vinyl acetate and vinyl neodecanoate and an alkyl acrylate) by Synthetic Chemical Industry Co., Ltd. may be mentioned. ) and Mowinyl-Powder LDM7000P (copolymer of alkyl acrylate and alkyl methacrylate) manufactured by Nippon Synthetic Chemical Industry Co., Ltd.

The content of the present synthetic resin in the rice seed is usually from 0.01 to 5% by weight, preferably from 0.05 to 4% by weight, more preferably from 0.1 to 2% by weight.

The aforementioned coating layer may also contain iron oxide. In the present invention, the iron oxide refers to an oxide containing iron represented by Fe ₂ O ₃ as a main component, and it is preferable to use a content of α-Fe ₂ O ₃ called hematite of 70% or more (relatively Iron oxide based on the weight percent of the iron oxide. In the present invention, the content of α-Fe ₂ O ₃ can be determined by XRD (X-ray diffraction method). Further, powdered iron oxide is usually used, and the iron oxide has an average particle diameter of 0.1 to 150 μm, preferably 0.1 to 100 μm, more preferably 1 to 80 μm. In the present invention, the average particle diameter of the iron oxide is a particle diameter measured by a laser diffraction/scattering type particle size distribution measuring apparatus, and means a particle diameter having a cumulative frequency of 50% in the volume reference frequency distribution. The average particle diameter of the iron oxide can be measured by a so-called wet type measurement method in which a particle of iron oxide particles is dispersed in water by using a Mastersizer 2000 (manufactured by Malvern) which is a laser diffraction/scattering type particle size distribution measuring apparatus. Seek.

When the coating layer contains iron oxide, the content of iron oxide in the rice seed is usually from 0.5 to 80% by weight, preferably from 1 to 70% by weight, more preferably from 1 to 50% by weight.

The coating layer may further contain at least one selected from the group (B) (hereinafter referred to as the inorganic compound). Examples of the clay in the inorganic compound include wax stone and kaolin. In addition, it is preferable that the inorganic compound is at least one selected from the group consisting of clay, barium sulfate, and calcium carbonate, and is particularly preferably calcium carbonate.

In the present invention, it is preferred to use a powdery inorganic compound having an average particle diameter of usually 200 μm or less, preferably 150 μm or less. In the present invention, the average particle diameter of the present inorganic compound is a particle diameter measured by a laser diffraction/scattering type particle size distribution measuring apparatus, and means a particle diameter having a cumulative frequency of 50% in a volume-based frequency distribution. The average particle diameter of the present inorganic compound can be measured by a Mastersizer 2000 (manufactured by Malvern) which is a laser diffraction/scattering type particle size distribution measuring apparatus, and a method of measuring the particles of the inorganic compound by dispersing it in water. Determined by measurement.

When two or more inorganic compounds having different average particle diameters selected from the group (B) are used as the inorganic compound, the coating layer becomes a denser coating layer. The inorganic compounds may be the same or different in terms of two or more inorganic compounds having different average particle diameters. It is preferred to use a mixture of calcium carbonate having an average particle diameter of 1 to 20 μm and calcium carbonate having an average particle diameter of 25 to 70 μm.

When the coating layer contains the present inorganic compound, the content of the rice seed is usually from 0.5 to 80% by weight, preferably from 1 to 70% by weight, more preferably from 1 to 50% by weight.

The aforementioned coating layer may further comprise an agrochemical active ingredient. Examples of the agrochemical active ingredient include an insecticidal active ingredient, a bactericidal active ingredient, a herbicidal active ingredient, and a plant growth regulating active ingredient.

Examples of the insecticidal active ingredient include cotinine, edetamine, and acesulfame.

Examples of the bactericidal active ingredient include dysparin and florin.

The herbicidal active ingredient may, for example, be acesulfame or bromobutachlor.

As the plant growth regulating active ingredient, for example, paclobutrazol P can be mentioned.

In the present invention, it is preferred to use a powdery agrochemical active ingredient, which may be mixed with the present inorganic compound as needed, and pulverized into a powdery pesticide using a pulverizer such as a dry pulverizer. The average particle diameter of the powdery pesticide is usually 200 μm or less, preferably 150 μm or less. In the present invention, the average particle diameter of the powdery pesticide is a particle diameter measured by a laser diffraction/scattering type particle size distribution measuring apparatus, and means a particle diameter of 50% of the cumulative frequency in the volume reference frequency distribution. Further, the average particle diameter of the powdery pesticide when the powdery pesticide is a mixture with the inorganic compound means the average particle diameter of the mixture. The average particle diameter of the powdered pesticide can be used as a particle of a laser diffraction ‧ scattering type particle size distribution measuring device Mastersizer 2000 (manufactured by Malvern) It is obtained by a so-called wet type measurement of a method of measuring in water and measuring.

When the coating layer contains the agrochemical active ingredient, the content of the rice seed is usually 0.001 to 3% by weight, preferably 0.005 to 2% by weight, more preferably 0.01 to 2% by weight.

The aforementioned coating layer may further contain a colorant. As the coloring agent, for example, a pigment, a coloring matter, and a dye can be mentioned, and among them, a pigment is preferably used. As the pigment, a red or blue pigment is preferably used, and, for example, Ultramarine Nubix G-58 (blue pigment, manufactured by Nubiola Co., Ltd.) and Toda Color 300R (red pigment, manufactured by Toda Industries, Ltd.) are mentioned.

These ingredients used for the production of the rice seed may be used separately or may be mixed with all or at least two ingredients. The kit of the present invention (hereinafter referred to as the kit) is made of zinc oxide, a surfactant, and the present synthetic resin. These may be contained in one container or may be contained in two or more containers. That is, the kit can include more than one container. When the kit contains more than two containers, different components can be loaded into each container. Further, the kit may contain other components (hereinafter referred to as component α) such as iron oxide, the present inorganic compound, and a pesticidal active ingredient.

The rice seed can be formed by coating a coating layer containing zinc oxide, a surfactant, the present synthetic resin with any iron oxide or the present inorganic compound (hereinafter referred to as the coating layer 1) in rice seeds, or in rice seeds. A coating layer containing zinc oxide, the present synthetic resin, and any of the iron oxide or the present inorganic compound (hereinafter referred to as the coating layer 2) is formed, and then a surfactant is held on the surface thereof.

The coating layer 1 is added while the rice seeds are rotated while being carried out. Addition of zinc oxide, a surfactant, and the present synthetic resin, and optionally the addition of iron oxide or the present inorganic compound, is carried out by adhering these rice seeds. The coating layer 2 is formed by adding zinc oxide and the present synthetic resin while rotating the rice seed, and optionally adding iron oxide or the inorganic compound to adhere the rice seeds. As a means for rotating the rice seeds, a device used in a conventional iron coating such as a coating machine can be used. The zinc oxide, the surfactant, the synthetic resin, and optionally the iron oxide or the inorganic compound may be used singly or in combination of all or at least two components. When all the components are mixed, a powdery composition containing zinc oxide, a surfactant, the present synthetic resin, and any of iron oxide or the present inorganic compound is used. At this time, the form of the synthetic resin is preferably powdery. When at least two kinds of components are mixed, a powdery composition containing zinc oxide and a surfactant, and any iron oxide or the present inorganic compound is used together with the synthetic resin, or zinc oxide and the synthetic resin are used, and any A powdery composition of iron oxide or the present inorganic compound and a surfactant. Further, when the component α is used, the component α may be used singly, and the component α may be added to zinc oxide and any of the iron oxide or the inorganic compound.

Hereinafter, in the case where the form of the synthetic resin is a latex, a method in which the coating layer 2 is formed by separately using zinc oxide, a surfactant, and the present synthetic resin, and the surfactant is held on the surface thereof will be described.

The coating layer 2 was formed on the rice seeds by separately adding zinc oxide and the present synthetic resin while rotating the rice seeds. The synthetic resin functions as a binder (bonding agent) to adhere zinc oxide On rice seeds. In the case of the rice seed, it is preferred that the surfactant is maintained at least on the surface thereof. After the rice seed forms the coating layer 2, the surfactant is added while maintaining the rotation state of the rice seed, and the rotation state is maintained. Thus, a surfactant is attached to the outside of the coating layer 2, and the surfactant can be held on the surface.

When the present inorganic compound is used, in the above method, zinc oxide and the present inorganic compound may be added in combination or may be added individually. When it is added individually, the inorganic compound is added first, and then zinc oxide is added, whereby a first layer containing the inorganic compound and a second layer containing zinc oxide disposed outside the first layer can be obtained. This rice seed. Specifically, the inorganic compound and the synthetic resin are separately added while the rice seed is rotated, and the first layer containing the inorganic compound and the synthetic resin is formed, and then the rice seed is kept in a rotating state and separated individually. Zinc oxide and the present synthetic resin are added, and a second layer containing zinc oxide and the present synthetic resin is formed on the outer side of the first layer.

A powdery composition containing zinc oxide and the present inorganic compound (hereinafter referred to as the composition (1)) is suitably used as a powdery composition for coating rice seeds. The average particle diameter of the composition (1) is from 0.01 to 150 μm, preferably from 1 to 150 μm, more preferably from 1 to 60 μm.

In the present invention, the average particle diameter of the composition (1) is a particle diameter measured by a laser diffraction/scattering type particle size distribution measuring device, and means a particle diameter of 50% of the cumulative frequency in the volume reference frequency distribution. . The average particle diameter of the composition (1) can be used as a Mastersizer 2000 (manufactured by Malvern) as a laser diffraction/scattering type particle size distribution measuring apparatus by using the composition The so-called wet type measurement of the method in which the particles of (1) are dispersed in water and measured is obtained.

Further, the apparent specific gravity of the composition (1) is, for example, 0.30 to 2.50 g/mL and 0.30 to 2.0 g/mL, preferably 0.50 to 2.0 g/mL, more preferably 0.60 to 1.7 g/mL. The larger the apparent specific gravity of the composition (1), the better the less likely to be scattered when the coated rice seeds are produced. In the present invention, the apparent specific gravity of the composition (1) is determined by a method according to the test method prescribed by the pesticide test method (physical test method, No. 71 of the Ministry of Agriculture and Forestry of February 3, 1947). In this method, a standard sieve of 8 mesh (a test sieve specified by Japanese Industrial Standard (JIS) Z8801-1 having a diameter of 200 mm and a depth of 45 mm) is placed on a metal cylindrical container having a diameter of 50 mm and 100 mL. , load the sample into it, and gently brush it with a brush to fill the container. Immediately use the slide glass to drop the remaining amount and measure the weight, and determine the weight of the contents, and calculate the apparent specific gravity according to the following formula. However, the distance between the screen and the upper edge of the container is 20 cm.

Apparent specific gravity (g/mL) = weight of contents / 100

The weight ratio of zinc oxide to the present inorganic compound in the composition (1) is usually from 1:1000 to 1000:1, preferably from 1:1000 to 100:1, more preferably from 1:200 to 10:1. . If the plant growth and environmental impact are considered, it is preferably in the range of 1:200 to 1:3.

In the following, when the form of the synthetic resin is a latex, the coating layer 2 is formed by using a powdery composition containing zinc oxide and iron oxide, a surfactant, and the synthetic resin, and the surfactant is held on the surface thereof. The method is explained.

While the rice seeds are rotated, the powdery composition containing zinc oxide and iron oxide and the synthetic resin are separately added separately, and the coating layer 2 is formed on the rice seeds. The synthetic resin functions as a binder (bonding agent) to adhere zinc oxide and iron oxide to rice seeds. In the case of the rice seed, it is preferred that the surfactant is maintained at least on the surface thereof. After the rice seed forms the coating layer 2, the surfactant is added while maintaining the rotation state of the rice seed, and the rotation state is maintained. Thus, a surfactant is attached to the outside of the coating layer 2, and the surfactant can be held on the surface.

When the coating layer is formed by using iron oxide and zinc oxide separately, the iron oxide is added first, followed by the addition of zinc oxide, whereby the first layer having the iron oxide and the outer side of the first layer can be obtained. The rice seed comprising the second layer of zinc oxide. Specifically, while the rice seeds are rotated, the iron oxide and the synthetic resin are separately added separately, and the first layer containing the iron oxide and the synthetic resin is formed, and then the oxidation is separately added while maintaining the rotation state of the rice seeds. Zinc and the present synthetic resin are formed on the outer side of the first layer by a second layer containing zinc oxide and the present synthetic resin.

A powdery composition containing zinc oxide and iron oxide (hereinafter referred to as the composition (2)) is suitable as a powdery composition for coating rice seeds. The weight ratio of zinc oxide to iron oxide in the composition (2) is in the range of 1:1000 to 1:1, preferably in the range of 1:200 to 1:1, more preferably in the range of 1:200 to 1:2. . If the plant growth and environmental impact are considered, it is preferably in the range of 1:200 to 1:3. The average particle size of the composition (2) is 0.01 to 150 μm, preferably 1 to 100 μm, more preferably 1 to 50 μm. In the present invention, the average particle diameter of the composition (2) is a particle diameter measured by a laser diffraction ‧ scattering type particle size distribution measuring device, and means a particle diameter of 50% of the cumulative frequency in the volume reference frequency distribution. . The average particle diameter of the composition (2) can be measured by dispersing particles of the composition (2) in water using a Mastersizer 2000 (manufactured by Malvern) which is a laser diffraction/scattering type particle size distribution measuring apparatus. The method is obtained by so-called wet measurement.

Further, the apparent specific gravity of the composition (2) is, for example, 0.30 to 2.50 g/mL and 0.30 to 2.0 g/mL, preferably 0.50 to 2.20 g/mL, more preferably 1.00 to 2.20 g/mL.

Examples of several of the present compositions (1) are shown below. In the following examples, % indicates the weight % relative to the composition (1).

‧ a powdery composition comprising zinc oxide and at least one selected from the group consisting of clay, barium sulfate and calcium carbonate having an average particle diameter of 0.01 to 150 μm and an apparent specific gravity of 0.30 to 2.0 g/mL; And a powdery composition having at least one selected from the group consisting of clay, barium sulfate, and calcium carbonate having an average particle diameter of 1 to 150 μm and an apparent specific gravity of 0.50 to 2.0 g/mL; ‧ comprising zinc oxide and being selected from clay At least one of the group consisting of barium sulfate and calcium carbonate has an average particle diameter of 1 to 60 μm and an apparent specific gravity of 0.60 to 1.7 g/mL; and ‧ contains zinc oxide and is selected from the group consisting of wax stone and barium sulfate At least one of the group consisting of calcium carbonate and the average particle diameter of the group is 0.01 to 150 μm, and the apparent specific gravity is a powdery composition of 0.30 to 2.0 g/mL; ‧ an oxide containing zinc and at least one selected from the group consisting of wax stone, barium sulfate, and calcium carbonate having an average particle diameter of 1 to 150 μm and an apparent specific gravity of 0.50 to 2.0 a powdery composition of g/mL; ‧ at least one of zinc oxide and a group selected from the group consisting of wax stone, barium sulfate and calcium carbonate having an average particle diameter of 1 to 60 μm and an apparent specific gravity of 0.60 to 1.7 g/mL Powdery composition; ‧ powdery composition containing zinc oxide and calcium carbonate having an average particle diameter of 1 to 60 μm and an apparent specific gravity of 0.60 to 1.7 g/mL; ‧ containing zinc oxide 0.5 to 30% and calcium carbonate 70 ~99.5% of the average particle size of 5~50μm, the apparent specific gravity of 0.80~1.5g/mL powder composition; ‧containing zinc oxide 1~25% and calcium carbonate 75~99% average particle size is 15~ A powdery composition of 45 μm and an apparent specific gravity of 1.0 to 1.3 g/mL; ‧ a powdery composition consisting of 25% zinc oxide and 75% calcium carbonate having an average particle diameter of 21.5 μm and an apparent specific gravity of 1.02 g/mL ‧A powdery composition consisting of 10% zinc oxide and 90% calcium carbonate with an average particle size of 30.0 μm and an apparent specific gravity of 1.20 g/mL; ‧ an average of 1% zinc oxide and 99% calcium carbonate The particle size is 41.4μm, and the apparent specific gravity It is a powdery composition of 1.3g/L; ‧ a powdery composition containing zinc oxide and clay with an average particle diameter of 1 to 60 μm and an apparent specific gravity of 0.60 to 1.7 g/mL; ‧ containing zinc oxide and wax a powdery composition having an average particle diameter of 1 to 60 μm and an apparent specific gravity of 0.60 to 1.7 g/mL; ‧A powdery composition containing 40~95% zinc oxide and 5~60% waxite with an average particle size of 1~15μm and an apparent specific gravity of 0.60~1.0g/mL; ‧from zinc oxide 90% and wax stone 10 % constitutes a powdery composition having an average particle diameter of 10.3 μm and an apparent specific gravity of 0.94 g/mL; ‧ an average particle diameter of 0.3 μm composed of 50% of zinc oxide and 50% of wax stone, and an apparent specific gravity of 0.66 g /mL powder composition; ‧ zinc oxide and barium sulfate with an average particle size of 1 ~ 60μm, apparent specific gravity of 0.60 ~ 1.7g / mL of powder composition; ‧ zinc oxide 10 ~ 60% and sulfuric acid A powdery composition having an average particle diameter of 40 to 90% of 1 to 20 μm and an apparent specific gravity of 0.8 to 1.2 g/mL. ‧ a powdery composition consisting of 20% zinc oxide and 80% barium sulfate with an average particle size of 10.5 μm and an apparent specific gravity of 1.07 g/mL; and ‧ an average of 50% zinc oxide and 50% barium sulfate A powdery composition having a particle diameter of 1.6 μm and an apparent specific gravity of 0.87 g/mL.

Examples of several of the present compositions (2) are shown below. In the following examples, % indicates the weight % relative to the composition (2).

‧ a powdery composition comprising zinc oxide and iron oxide having an average particle diameter of 0.01 to 150 μm, an apparent specific gravity of 0.30 to 2.50 g/mL, and a weight ratio of zinc oxide to iron oxide of 1:1000 to 1:1; a powdery composition comprising zinc oxide and iron oxide having an average particle diameter of 1 to 100 μm, an apparent specific gravity of 0.50 to 2.20 g/mL, and a weight ratio of zinc oxide to iron oxide of 1:200 to 1:1; The average particle size of zinc oxide and iron oxide is 1~50μm, the apparent specific gravity is 1.00~2.20g/mL, and the weight ratio of zinc oxide to iron oxide is 1: Powder composition of 200~1:1; ‧1~50% of zinc oxide and 50~99% of iron oxide have an average particle size of 1~30μm, apparent specific gravity of 1.20~2.20g/mL, zinc oxide and oxidation The weight ratio of iron is 1:100~1:1 powder composition; ‧1~30% of zinc oxide and 70~99% of iron oxide have an average particle size of 1~30μm and an apparent specific gravity of 1.20~2.20g /mL, the weight ratio of zinc oxide to iron oxide is 1:100~1:2; the average particle size consisting of 25% zinc oxide and 75% iron oxide is 2.7μm, and the apparent specific gravity is 1.38. g/mL, a powdery composition having a weight ratio of zinc oxide to iron oxide of 1:3; and ‧ an average particle diameter of 28.6 μm composed of 5% of zinc oxide and 95% of iron oxide, and an apparent specific gravity of 2.07 g /L, a powder composition having a weight ratio of zinc oxide to iron oxide of 1:19.

Further, when the form of the synthetic resin is powdery, the present composition (1) may contain the present synthetic resin. Several examples of the present composition (1) containing the present synthetic resin are shown below. In the following examples, % indicates the weight % relative to the composition (1).

‧ a powdery composition comprising at least one of zinc oxide, calcium carbonate and a group selected from the group consisting of acrylic resins and vinyl acetate resins; ‧ a powdery composition comprising zinc oxide and calcium carbonate and an acrylic resin; a powdery composition with calcium carbonate and a vinyl acetate resin; ‧ a powdery composition comprising an apparent specific gravity of zinc oxide and calcium carbonate and an acrylic resin of 0.60 to 1.7 g/mL; ‧powder composition containing zinc oxide and calcium carbonate and vinyl acetate resin with an apparent specific gravity of 0.60~1.7g/mL; ‧containing zinc oxide 0.1~5% and calcium carbonate 90~98% and acrylic resin 1.9~5 The apparent composition of % is a powdery composition of 1.0 to 1.5 g/mL; ‧ the average particle diameter of 1.0% of zinc oxide and 95.2% of calcium carbonate and 3.8% of acrylic resin is 40.1 μm, and the apparent specific gravity is 1.31 g/ a powdery composition of mL; a powdery composition consisting of 4.8% zinc oxide and 91.4% calcium carbonate and 3.8% acrylic resin, having an average particle diameter of 35.0 μm and an apparent specific gravity of 1.18 g/mL; In each of the above examples, the acrylic resin is preferably a copolymer of an alkyl acrylate and an alkyl methacrylate, and the vinyl acetate resin is preferably a copolymer of vinyl acetate and vinyl neodecanoate and an alkyl acrylate.

Further, when the form of the synthetic resin is powdery, the present composition (2) may contain the present synthetic resin. Several examples of the present composition (2) containing the present synthetic resin are shown below. In the following examples, % indicates the weight % relative to the composition (2).

‧powder composition containing zinc oxide, iron oxide and acrylic resin; ‧containing zinc oxide and iron oxide and acrylic resin with an average particle size of 1~50μm, apparent specific gravity of 1.0~2.20g/mL, zinc oxide and oxidation The weight ratio of iron is 1:200~1:1 powder composition; ‧containing zinc oxide 4~30% and iron oxide 65~94% and acrylic resin 2~5% average particle size is 1~30μm, table The specific gravity is 1.20~2.20g/mL, and the weight ratio of zinc oxide to iron oxide is 1:100~1:2 Composition: ‧ an average particle diameter of 2.6 μm, an apparent specific gravity of 1.33 g/mL, and a weight ratio of zinc oxide to iron oxide of 1:3, which consists of 24% zinc oxide and 72.1% of iron oxide and 3.9% of acrylic resin. Powder composition; and ‧ zinc oxide 4.8% and iron oxide 91.4% and acrylic resin 3.8% average particle diameter 21.3μm, apparent specific gravity 1.93g / mL, zinc oxide and iron oxide weight ratio 1: 19 powdery composition.

In each of the above examples, the acrylic resin is preferably a copolymer of an alkyl acrylate and an alkyl methacrylate.

The method for producing the rice seed (hereinafter referred to as the production method) will be described. In the present manufacturing method, the rice seed line is usually used after being soaked. Seed soaking can be carried out as follows. First, the dried rice seeds are placed in a bag of a rice seed bag or the like and then immersed in water. In order to obtain coated rice seeds with higher germination rate, it is more suitable to soak the water temperature at 15~20 °C for 3-4 days.

After the rice seeds are taken out of the water, they are usually allowed to stand or the excess water on the surface thereof is removed by placing a dehydrator.

First, a method for producing coated rice seeds (hereinafter referred to as the production method 1) in which the coating layer 2 is provided and the surfactant is held on the surface thereof will be described. The manufacturing method 1 has the following steps:

(1) a step of forming the coating layer 2 while adding the aqueous dispersion of the synthetic resin and zinc oxide while rotating the rice seed, and (2) rotating the seed obtained in the above step (1) Add interface An active agent, a step of maintaining the surfactant on the outer side of the present coating layer 2 formed in the above step (1); and (3) a step of drying the seed obtained in the above step (2).

In the production method 1 of the present invention, a step of forming the coating layer 2 by adding an aqueous dispersion of the synthetic resin and zinc oxide while rotating the soaked rice seeds (hereinafter referred to as step 1) . As the aqueous dispersion of the synthetic resin, the synthetic resin commercially available in the form of a latex can be used after being diluted with water as needed. In the step 1, an aqueous dispersion of the synthetic resin (hereinafter referred to as a latex) may be added, and then zinc oxide may be added, or the order may be reversed. Alternatively, the latex and zinc oxide may be added at the same time. Both the zinc oxide and the present latex are added in such a manner as to fall on the rice seeds in a rotating state. The latex is usually used in an amount of 20 to 65%, preferably 30 to 60%, more preferably 30 to 40%, both based on the weight of the latex. As a method of adding the latex, any of dripping and spraying can be used. After adding the latex and zinc oxide, the rotation state of the rice seeds is maintained, and the latex is used as a binder to adhere the zinc oxide to the rice seeds.

The total amount of zinc oxide added in the production method 1 is usually 5 to 400 parts by weight, preferably 5 to 200 parts by weight, more preferably 10 to 100 parts by weight, per 100 parts by weight of the dry rice seed. When considering the growth of the plant and the influence on the environment, it is preferably in the range of 10 to 25 parts by weight. The total amount of the synthetic resin to be added is usually from 0.025 to 25 parts by weight, preferably from 0.05 to 8 parts by weight, more preferably from 0.1 to 4 parts by weight, per 100 parts by weight of the dry rice seed. Also, the synthetic resin and oxygen The weight ratio of zinc to zinc is usually in the range of 1:200 to 1:10, preferably in the range of 1:100 to 1:25.

In the step 1, by separately adding zinc oxide and the present synthetic resin separately, and repeating the step 1, a uniform coating layer can be formed. In this case, the amount of zinc oxide added once is usually 1 to 1/10, preferably about 1/2 to 1/5, of the total amount of zinc oxide added. In addition, the amount of the primary synthetic resin to be added may be changed depending on the state of the coating, and is usually from 1 to 1/10, preferably from about 1/2 to 1/5, based on the total amount of the synthetic resin. In the present invention, the term "the amount of the first synthetic resin added" is the amount of the synthetic resin required for all the zinc oxide added to the rice seed. The zinc oxide and the synthetic resin need not be added interactively, as long as any one of them is added depending on the state of the coating. Also, only water can be added as needed. The total amount of water added is usually 1/2 to 1/100, preferably about 1/3 to 1/10, of the total amount of zinc oxide added. However, the total amount of water added also includes water used to dilute the latex.

In the step 1, when zinc oxide adheres to the inner wall of the apparatus or the like, it is scraped off by using a scraper or the like, and substantially the entire amount of the added zinc oxide can be attached to the rice seed.

After the step 1 is carried out, a step of adding the surfactant while rotating the seed obtained in the step 1 and holding the surfactant on the outer side of the present coating layer 2 formed in the step 1 is described (step 2 is described below). ). In the step 2, after the step 1 is carried out, the surfactant is added while maintaining the rotation state of the rice seed, and the state of rotation is maintained, so that the surfactant can be held outside the coating layer 2.

After the step 2 is carried out, the step of drying the seed obtained in the step 2 is carried out to obtain the rice seed. Specifically, after step 2 is carried out, the rice seeds are taken out from the apparatus, placed in a seedling box, and laid flat, and allowed to stand to be dried. Typically, it is dried to a moisture content of less than 20% (relative to the weight percent of the coated rice seed). In the present invention, the moisture content of the coated rice seeds refers to a value measured by drying 10 g of the sample at 105 ° C for 1 hour using an infrared moisture meter. As the infrared moisture meter, FD-610 manufactured by Kett Electric Laboratory can be used. Alternatively, a mat or a vinyl sheet may be used in place of the aforementioned seedling box, which is thinly laid flat and dried.

Next, a method for producing coated rice seeds having a coating layer containing zinc oxide and the present synthetic resin and the present inorganic compound and maintaining a surfactant on the surface thereof (hereinafter referred to as the production method 2) ) to explain. The manufacturing method 2 has the following steps:

(1) a step of forming a coating layer containing the present synthetic resin, the present inorganic compound and zinc oxide while adding the present latex, the present inorganic compound and zinc oxide while rotating the rice seed, and (2) performing the aforementioned steps ( 1) the seed obtained by rotating, adding a surfactant to maintain the surfactant on the outer side of the layer formed in the above step (1); and (3) drying the seed obtained in the above step (2) A step of.

In the production method 2, the same method as in the production method 1 is used except that a powdery composition containing zinc oxide and the present inorganic compound (hereinafter referred to as a powdery composition Z) is used instead of zinc oxide.

The total amount of zinc oxide added in the production method 2 is relative to the dry rice The rice seed is usually used in an amount of from 0.01 to 200 parts by weight, preferably from 0.1 to 100 parts by weight, more preferably from 0.1 to 50 parts by weight, per 100 parts by weight. When the growth of the plant and the influence on the environment are considered, it is preferably in the range of 0.1 to 25 parts by weight. The total amount of the inorganic compound added is usually from 1 to 399.9 parts by weight, preferably from 1 to 199.9 parts by weight, more preferably from 1 to 99.9 parts by weight, per 100 parts by weight of the dry rice seed. The total amount of the powdery composition Z to be added is usually 5 to 400 parts by weight, preferably 5 to 200 parts by weight, more preferably 10 to 100 parts by weight, per 100 parts by weight of the dry rice seed. The total amount of the synthetic resin to be added is usually from 0.025 to 25 parts by weight, preferably from 0.05 to 8 parts by weight, more preferably from 0.1 to 4 parts by weight, per 100 parts by weight of the dry rice seed. Further, the weight ratio of the synthetic resin to the powdery composition Z is usually in the range of 1:200 to 1:10, preferably in the range of 1:100 to 1:25.

Next, the coating layer has a coating layer containing zinc oxide, the present synthetic resin, and the present inorganic compound, and the coating layer has a first layer including the inorganic compound and the synthetic resin, and an outer layer provided on the outer side of the first layer. A method for producing coated rice seeds (hereinafter referred to as "manufacturing method 3") of zinc oxide and a second layer of the present synthetic resin and a surfactant held on the surface thereof will be described. The manufacturing method 3 has the following steps:

(1) (I) adding the present latex and the inorganic compound while rotating the rice seed, forming a coating layer containing the synthetic resin and the inorganic compound, and (II) performing the above step (I) The seed obtained in the rotation is rotated while adding the present latex and zinc oxide, and the outer side of the layer formed in the above step (I) is made to contain the synthetic resin and zinc oxide. a step of forming a coating layer; (2) a step of adding a surfactant while rotating the seed obtained in the above step (1) to maintain the surfactant on the outer side of the layer formed in the above step (1); And (3) a step of drying the seed obtained in the above step (2).

In the production method 3, first, a step of forming a coating layer containing the present synthetic resin and the inorganic compound while adding the present latex and the inorganic compound while rotating the soaked rice seed is described (hereinafter, Step I). The step I can be carried out in the same manner as in the first step of the production method 1 except that the inorganic compound is used instead of zinc oxide. After the step I is carried out, a step of forming the coating layer containing the present synthetic resin and zinc oxide on the outer side of the layer formed in the step I while adding the present latex and zinc oxide while rotating the seed obtained in the step I is carried out. (The following is described as step II). Step II can be carried out in the same manner as in the first step of the production method 1.

The total addition amount of the present inorganic compound in the production method 3 is usually 5 to 400 parts by weight, preferably 5 to 200 parts by weight, more preferably 10 to 100 parts by weight, per 100 parts by weight of the dried rice seeds. . The total amount of zinc oxide added is usually 0.01 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, per 100 parts by weight of the dry rice seed. When the growth of the plant and the influence on the environment are considered, it is preferably in the range of 0.1 to 25 parts by weight. The total amount of the synthetic resin to be added is usually 0.025 to 25 parts by weight, preferably 0.08 to 8 parts by weight, more preferably 0.1 to 4 parts by weight, per 100 parts by weight of the dry rice seed. Moreover, the total addition amount of the synthetic resin and the total addition of zinc oxide The weight ratio of the total amount of the total amount of the inorganic compound added is usually from 1:200 to 1:10, preferably from 1:100 to 1:25.

After the step II is carried out, the step 2 of the production method 1 may be carried out in the same manner.

Next, a method for producing coated rice seeds (hereinafter referred to as the production method 4) in which the present coating layer 2 is contained and the surfactant is held on the surface of the iron oxide is described. The manufacturing method 4 has the following steps:

(1) a step of forming the coating layer 2 by adding an aqueous dispersion of the synthetic resin, zinc oxide and iron oxide while rotating the rice seed, and (2) seed obtained in the above step (1) a step of rotating, adding a surfactant to maintain the surfactant on the outer side of the present coating layer 2 formed in the above step (1); and (3) a step of drying the seed obtained in the above step (2) .

In the production method 4, first, an aqueous dispersion containing the synthetic resin, a powdery composition containing zinc oxide and iron oxide, and a powdery composition T (hereinafter referred to as a powder composition T) are added while rotating the soaked rice seeds. The step of forming the coating layer 2 (hereinafter referred to as step 1'). As the aqueous dispersion of the synthetic resin, the synthetic resin commercially available in the form of a latex can be used after being diluted with water as needed. In the step 1', the latex may be added, followed by the addition of the powder composition T, or the order may be reversed. Further, the latex and the powder composition T may be simultaneously added. Both the powder composition T and the present latex are added in such a manner as to fall on the rice seeds in a rotating state. The content of the synthetic resin in the latex is usually 20 to 65%, preferably 30. It is used in the range of ~60%, more preferably 30-40% (both in weight relative to latex). As a method of adding the latex, any of dripping and spraying can be used. After the addition of the latex and the powder composition T, the rotation state of the rice seeds is maintained, and the latex is used as a binder to adhere the powder composition T to the rice seeds.

The total amount of zinc oxide added in the production method 4 is usually 0.01 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, per 100 parts by weight of the dry rice seed. When the growth of the plant and the influence on the environment are considered, it is preferably in the range of 0.1 to 25 parts by weight. The total amount of iron oxide added is usually from 1 to 399.9 parts by weight, preferably from 1 to 199.9 parts by weight, more preferably from 1 to 99.9 parts by weight, per 100 parts by weight of the dried rice seeds. The total amount of the powdery composition T to be added is usually 5 to 400 parts by weight, preferably 5 to 200 parts by weight, more preferably 10 to 100 parts by weight, per 100 parts by weight of the dry rice seed. The total amount of the synthetic resin to be added is usually from 0.025 to 25 parts by weight, preferably from 0.05 to 8 parts by weight, more preferably from 0.1 to 4 parts by weight, per 100 parts by weight of the dry rice seed. Further, the weight ratio of the synthetic resin to the powdery composition T is usually in the range of 1:200 to 1:10, preferably in the range of 1:100 to 1:25.

In the step 1', the powdery composition T and the present synthetic resin are separately added separately, and the step 1' is repeated to form a uniform coating layer. In this case, the amount of the powder composition T to be added once is usually 1 to 1/10, preferably about 1/2 to 1/5, of the total amount of the powder composition T. Moreover, the amount of the primary synthetic resin added can be changed depending on the state of the coating. The total amount of the synthetic resin to be added is usually 1 to 1/10, preferably about 1/2 to 1/5. In the present invention, the term "the amount of the first synthetic resin to be added" is the amount of the synthetic resin required to adhere to the rice seed in a single addition amount of the powdery composition T. The powder composition T and the present synthetic resin need not be added interactively, as long as any one of them is added depending on the state of coating. Also, only water can be added as needed.

The total amount of water added is usually 1/2 to 1/100, preferably about 1/3 to 1/10, of the total amount of the powder composition T added. However, the total amount of water added also includes water used to dilute the latex.

In the step 1', when the powdery composition T adheres to the inner wall of the apparatus or the like, it is scraped off by using a scraper or the like, and substantially the entire amount of the added powdery composition T can be attached to the rice seed.

After the step 1' is carried out, a step of adding the surfactant while rotating the seed obtained in the step 1', and maintaining the surfactant on the outer side of the present coating layer 2 formed in the step 1' is carried out (hereinafter described) For step 2'). In the step 2', after the step 1' is carried out, the surfactant is added while maintaining the rotation state of the rice seed, and the state of rotation is maintained, whereby the surfactant can be held outside the coating layer 2.

After the step 2' is carried out, the step of drying the seed obtained in the step 2' is carried out to obtain the rice seed. Specifically, after performing step 2', the rice seeds are taken out from the apparatus, placed in a seedling box, and thinly laid, and allowed to stand to be dried. Typically, it is dried to a moisture content of less than 20% (relative to the weight percent of the coated rice seed). In the present invention, the moisture content of the coated rice seeds means that 10 g is used by using an infrared moisture meter. The value measured by drying the sample at 105 ° C for 1 hour. As the infrared moisture meter, FD-610 manufactured by Kett Electric Laboratory can be used. Alternatively, a mat or a vinyl sheet may be used in place of the aforementioned seedling box, which is thinly laid flat and dried.

Next, the present coating layer 2 has a first layer containing iron oxide and the present synthetic resin, and a second layer containing zinc oxide and the synthetic resin disposed outside the first layer. The method for producing coated rice seeds (hereinafter referred to as the production method 5) in which the surfactant is held on the surface thereof will be described. The manufacturing method 5 has the following steps:

(1) (i) a step of forming a coating layer containing the synthetic resin and iron oxide while adding the latex and iron oxide while rotating the rice seed, and (ii) performing the above step (i) The obtained seed is rotated, and the latex and zinc oxide are added, and the coating layer containing the synthetic resin and the zinc oxide is formed on the outer side of the layer formed in the above step (i); (2') while the aforementioned The seed obtained in the step (1') is rotated, the surfactant is added to maintain the surfactant on the outer side of the layer formed in the above step (1'); and (3') the aforementioned step (2' is performed The step of drying the seeds obtained in the process.

In the production method 5, first, a step of forming a coating layer containing the present synthetic resin and iron oxide while adding the present latex and iron oxide while rotating the soaked rice seeds (hereinafter referred to as step i) ). The step i can be carried out in the same manner as in the step 1' of the production method 4 except that iron oxide is used instead of the powder composition T. After implementing step i, A step of forming a coating layer containing the present synthetic resin and zinc oxide on the outer side of the layer formed in the step i while adding the present latex and zinc oxide while rotating the seed obtained in the step i (described below as a step) Ii). Step ii can be carried out in the same manner as in step i except that zinc oxide is used instead of iron oxide.

The total amount of iron oxide added in the production method 5 is usually 5 to 400 parts by weight, preferably 5 to 200 parts by weight, and more preferably 10 to 100 parts by weight, based on 100 parts by weight of the dried rice seeds. The total amount of zinc oxide added is usually 0.01 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight, per 100 parts by weight of the dry rice seed. When the growth of the plant and the influence on the environment are considered, it is preferably in the range of 0.1 to 25 parts by weight. The total amount of the synthetic resin to be added is usually from 0.025 to 25 parts by weight, preferably from 0.05 to 8 parts by weight, more preferably from 0.1 to 4 parts by weight, per 100 parts by weight of the dry rice seed. Further, the weight ratio of the total amount of the synthetic resin to the total amount of zinc oxide added and the total amount of iron oxide added is usually in the range of 1:200 to 1:10, preferably 1:100 to 1:25. .

After the step ii is carried out, the step 2' of the production method 4 may be carried out in the same manner.

The rice seed can be used for direct seeding cultivation of rice, and the method is carried out by directly spraying the rice seed on the paddy field. In the present invention, a paddy field refers to any type of paddy field that passes through Zhanshui and a paddy field that has been pumped. Specifically, it is based on the "Iron-coated Zhanshui Live Handbook 2010" (Mr. Yamauchi, Independent Administrative Corporation Agriculture, Food Industry Technology Research Institute, near 畿 China's Shikoku Agricultural Research Center, March 2010, the method described in Non-Patent Document 1) was planted. In this case, a live broadcast machine for iron coating such as Tetsumakichan (Kubota Co., Ltd.) or the like can be used. Thus, seeding is carried out by a general method, whereby good emergence can be achieved. Thereafter, the rice can be grown by maintaining the general cultivation conditions.

Further, pesticides and fertilizers may be applied before sowing, at the same time as planting, or after sowing. Examples of the agricultural chemical include a bactericide, an insecticide, a herbicide, and the like.

[Examples]

The invention is illustrated in more detail in accordance with examples.

First, a manufacturing example and a comparative manufacturing example are shown.

In the following production examples and comparative production examples, the rice seeds were subjected to the use of Japanese solar rice seeds, and an oxidation of α-Fe ₂ O ₃ content of 78% and average particle diameter of 42.7 μm was used unless otherwise specified. iron. The manufacturing is carried out at room temperature (about 20 ° C). Further, % indicates % by weight.

Moreover, the brand names described in the production examples and the comparative production examples are as follows.

Zinc Oxide 3N5: Zinc Oxide, manufactured by Kanto Chemical Co., Ltd., average particle size: 7.7 μm

Zinc Oxide First: Zinc Oxide, manufactured by Nippon Chemical Industry Co., Ltd., average particle size: 0.26μm

Zinc Oxide Second: Zinc Oxide, manufactured by Nippon Chemical Industry Co., Ltd., average particle size: 0.24μm

Calcium carbonate granules: calcium carbonate, made by Yaoxian Lime Co., Ltd. Average particle size: 6.2 μm

Calcium carbonate G-100: Calcium carbonate, manufactured by Sankyo Fine Powder Co., Ltd., average particle size: 46.0 μm

SS#80: Calcium carbonate, manufactured by Ridong Powder Chemical Industry Co., Ltd., average particle size: 4.6μm

Barite: barium sulfate, manufactured by Neoraito Industrial Co., Ltd., average particle size: 12.4μm

Shengguangshan clay S: Wax stone, manufactured by Shengguangshan Mining Co., Ltd., average particle size: 6.7μm

DL powder for wax powder, manufactured by Shengguangshan Mining Co., Ltd., average particle size: 30.3μm

Rutile Flower: titanium oxide, manufactured by KINSEI MATEC Co., Ltd., average particle size: 14.6 μm

Sun-zeolite MGF: Zeolite, Sun-zeolite Industries, Inc., average particle size: 116μm

Magnesium oxide: Magnesium oxide, Wako Pure Chemical Industries Co., Ltd., average particle size: 14.9μm

DAE1K: iron powder, DOWA IP CREATION

KTS-1: calcined gypsum, manufactured by Yoshino Gypsum Trading Co., Ltd.

Mowinyl-Powder DM2072P: Copolymer of vinyl acetate with vinyl neodecanoate and alkyl acrylate, Tg: 14 ° C, synthetic resin content: 85%, manufactured by Nippon Synthetic Chemical Co., Ltd.

Mowinyl-Powder LDM7000P: copolymer of alkyl acrylate and alkyl methacrylate, Tg: 8 ° C, synthetic resin content: 85%, Japan Synthetic Chemical Industry Co., Ltd.

Mowinyl 6485: Copolymer of alkyl acrylate and styrene, Tg: -22 ° C, synthetic resin content: 55%, manufactured by Nippon Synthetic Chemical Co., Ltd.

NALSTAR SR140: carboxylated butadiene-styrene-methyl methacrylate copolymer, Tg: -12 ° C, synthetic resin content: 48.5%, manufactured by A&L Co., Ltd., Japan

Sumikaflex 808HQ: Copolymer of ethylene and vinyl acetate with vinyl chloride, Tg: 25 ° C, synthetic resin content: 50%, manufactured by Sumika Chemtex Co., Ltd.

SUPERFLEX 500M: a urethane resin obtained by polymerizing an aliphatic isocyanate and a polyester polyol, Tg: -39 ° C, synthetic resin content: 45%, manufactured by Daiichi Pharmaceutical Co., Ltd.

SORPOL 5080: Polyoxyethylene tristyrylphenyl ether, manufactured by Toho Chemical Industry Co., Ltd.

Mowinyl 180E: Copolymer of vinyl acetate and ethylene, Tg: -15 ° C, synthetic resin content: 55%, manufactured by Nippon Synthetic Chemical Co., Ltd.

Manufacturing example 1

First, a simple seed coating machine which can be applied when a rice seed is used in a small amount is produced. As shown in Fig. 1, a 500 mL-capacity polyethylene cup 2 is attached to the tip end of the shaft 1 and inserted into a drive shaft of a blender 3 (THREE-ONE MOTOR, manufactured by Shinto Scientific Co., Ltd.) at an elevation angle. The mixer 3 was mounted obliquely on the holder table 4 in a 45 degree manner to prepare a simple seed coating machine.

Next, 10.0 g of zinc oxide 3N5 and 0.2 g of Mowinyl-Powder DM2072P were mixed to obtain a powdery composition (1).

About 100 mL of water was placed in a polyethylene cup having a capacity of 200 mL, and 20 g of dried rice seeds were added thereto, and the mixture was immersed for 10 minutes. Thereafter, the rice seeds were taken out from the water, excess water on the surface was removed, and the mixture was placed in a polyethylene cup 2 mounted in a simple seed coating machine. The rice seed was rotated by a simple seed coating machine with the number of rotations of the agitator 3 being 130 to 140 rpm, and the powdery composition (1) 10.2 g was added while spraying water onto the rice seed by a sprayer. The amount of around 4/4 (about 2.5 g) was allowed to adhere to rice seeds. When the powdery composition (1) adheres to the inner wall of the polyethylene cup 2, it is scraped off using a spatula, so that substantially the entire amount of the powdery composition (1) added once is attached to the rice seed. . Thereafter, by repeating the same operation three times, 10.2 g of the powdery composition (1) was adhered to rice seeds to form a coating layer. The total amount of water used for coating was 2.7 g. Next, the state of rotation of the rice seeds was maintained while the simple seed coating machine was operated, and 0.1 g of SORPOL 5080 was placed and attached to the outside of the coating layer. The rice seeds taken out from the simple seed coating machine were laid flat on a stainless steel tray without being stacked, and allowed to dry overnight to obtain the coated rice seeds (1) of the present invention.

Manufacturing Example 2

The SUPERFLEX 500M 0.22 g and water 0.19 g were mixed to obtain 0.41 g of SUPERFLEX 500 M aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 1. After immersing 20 g of dried rice seeds, it was rotated by a simple seed coating machine, and an amount of about 1/4 (about 0.1 g) of 0.41 g of SUPERFLEX 500 M water dilution solution was dropped onto rice seeds using a dropper, and oxidation was added thereto. An amount of about 1/4 of the first 1 g of zinc (about 0.25 g) is allowed to adhere to rice seeds. When the first type of zinc oxide adheres to the inner wall of the polyethylene cup 2, it is scraped off using a spatula, so that substantially the entire amount of the first type of zinc oxide added once is attached to the rice seed.

Thereafter, by repeating the same operation three times, the first 1 g of zinc oxide was attached to the rice seeds to form a coating layer. The total amount of water used for coating was 0.5 g.

Next, the state of rotation of the rice seeds was maintained while the simple seed coating machine was operated, and 0.1 g of SORPOL 5080 was placed and attached to the outside of the coating layer.

The rice seeds taken out from the simple seed coating machine were flattened on a stainless steel tray without being stacked, and allowed to dry overnight to obtain the coated rice seeds (2) of the present invention.

Manufacturing Example 3

0.2 g of Sumikaflex 808HQ and 0.2 g of water were mixed to obtain 0.4 g of Sumikaflex 808HQ water dilution.

The following operations were carried out in accordance with the method described in Production Example 2. use 0.4g of the Sumikaflex 808HQ water dilution solution was replaced by 0.4g of the SUPERFLEX 500M water dilution solution, and the coating layer was formed by dividing the Sumikaflex 808HQ water dilution solution 0.4g and the zinc oxide first type 1g into four equal parts and adding them. The SORPOL 5080 0.1g was attached to the outside thereof to obtain the coated rice seed (3) of the present invention. Further, the total amount of water used for coating was 0.4 g.

Manufacturing Example 4

A second powder of 5.0 g of zinc oxide, 15.0 g of calcium carbonate G-100, and 0.4 g of Mowinyl-Powder LDM7000P were mixed to obtain a powdery composition (2). The powdery composition (2) had an average particle diameter of 34.1 μm and an apparent specific gravity of 0.96 g/mL.

The following operations were carried out in accordance with the method described in Production Example 1. 20.4 g of the above-mentioned powdery composition (2) was used instead of 10.2 g of the powdery composition (1), and after it was divided into four equal parts and added to form a coating layer, SORPOL 5080 0.2 g was attached to the outside thereof. The coated rice seed (4) of the present invention is obtained. Further, the total amount of water used for coating was 2.8 g.

Manufacturing Example 5

The second 0.1 g of zinc oxide, 9.9 g of calcium carbonate G-100 and 0.4 g of Mowinyl-Powder LDM7000P were mixed to obtain a powdery composition (3). The powdery composition (3) had an average particle diameter of 40.1 μm and an apparent specific gravity of 1.31 g/mL.

The following operations were carried out in accordance with the method described in Production Example 1. 10.4 g of the powdery composition (3) was used instead of 10.2 g of the powdery composition (1), and after it was divided into four equal parts and added to form a coating layer, SORPOL 5080 0.4 g was attached to the outside. The coated rice seed (5) of the present invention is obtained. Further, the total amount of water used for coating was 1.1 g.

Manufacturing Example 6

The second 0.5 g of zinc oxide, 9.5 g of calcium carbonate G-100, and 0.4 g of Mowinyl-Powder LDM7000P were mixed to obtain a powdery composition (4). The powdery composition (4) had an average particle diameter of 35.0 μm and an apparent specific gravity of 1.18 g/mL.

The following operations were carried out in accordance with the method described in Production Example 1. 10.4 g of the powdery composition (4) described above was used instead of 10.2 g of the powdery composition (1), and after it was divided into four equal parts and added to form a coating layer, SORPOL 5080 0.4 g was attached to the outside thereof. The coated rice seed (6) of the present invention is obtained. Further, the total amount of water used for coating was 1.6 g.

Manufacturing Example 7

0.1 g of the second zinc oxide, 4.9 g of calcium carbonate G-100, 5.0 g of barite, and 0.4 g of Mowinyl-Powder LDM7000P were mixed to obtain a powdery composition (5). The powdery composition (5) had an average particle diameter of 26.0 μm and an apparent specific gravity of 1.43 g/mL.

The following operations were carried out in accordance with the method described in Production Example 1. 10.4 g of the above-mentioned powdery composition (5) was used instead of 10.2 g of the powdery composition (1), and after it was divided into four equal parts and added to form a coating layer, SORPOL 5080 0.4 g was attached to the outside thereof. The coated rice seed (7) of the present invention is obtained. Further, the total amount of water used for coating was 1.2 g.

Manufacturing Example 8

The first 2.5 g of zinc oxide and 7.5 g of calcium carbonate G-100 were mixed to obtain a powdery composition (6). The powdery composition (6) had an average particle diameter of 21.5 μm and an apparent specific gravity of 1.02 g/mL.

Further, Mowinyl 6485 0.36 g and water 0.57 g were mixed to obtain 0.93 g of a Mowinyl 6485 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above powder composition (6) 10g instead of zinc oxide first 1g, using the above Mowinyl 6485 water dilution 0.93g instead of SUPERFLEX 500M water dilution 0.41g, and dividing each of them into four equal parts After the addition operation was carried out to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (8) of the present invention. Further, the total amount of water used for coating was 1.3 g.

Manufacturing Example 9

5.0 g of mixed zinc oxide 3N5 and calcium carbonate granules were used to obtain a powdery composition (7). The average particle size of the powdery composition (7) is 9.47 μm and an apparent specific gravity of 0.97 g/mL.

Further, 0.47 g of NALSTAR SR140 and 0.26 g of water were mixed to obtain 0.67 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above powder composition (7) 10g instead of zinc oxide first type 1g, using the above NALSTAR SR140 water dilution 0.67g instead of SUPERFLEX 500M water dilution 0.41g, and dividing each of them into four equal parts After the addition operation was carried out to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (9) of the present invention. Further, the total amount of water used for coating was 2.5 g.

Manufacturing Example 10

13.0 g of zinc oxide 3N5, 2.5 g of SS#80, and 7.5 g of calcium carbonate G-100 were mixed to obtain a powdery composition (8). The powdery composition (8) had an average particle diameter of 14.6 μm and an apparent specific gravity of 1.03 g/mL.

Further, 0.82 g of NALSTAR SR140 and 0.31 g of water were mixed to obtain 1.13 g of a NALSTAR SR140 aqueous diluent.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above-mentioned powder composition (8) 20 g instead of zinc oxide first type 1 g, using the above-mentioned NALSTAR SR140 water dilution liquid 1.13 g instead of SUPERFLEX 500 M water dilution liquid 0.41 g, and dividing each of them into four equal parts After the addition operation was carried out to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (10) of the present invention. Further, the total amount of water used for coating was 3.3 g.

Manufacturing Example 11

13.0 g of zinc oxide 3N5, 5.0 g of SS #80, and 15.0 g of calcium carbonate G-100 were mixed to obtain a powdery composition (9). The powdery composition (9) had an average particle diameter of 14.6 μm and an apparent specific gravity of 1.03 g/mL.

Further, 1.75 g of NALSTAR SR140 and 0.27 g of water were mixed to obtain 1.92 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above-mentioned powder composition (9) 40g instead of zinc oxide first type 1g, using the above-mentioned NALSTAR SR140 water dilution liquid 1.92g instead of SUPERFLEX 500M water dilution liquid 0.41g, and dividing each of them into four equal parts After the addition operation to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (11) of the present invention. Further, the total amount of water used for coating was 7.9 g.

Manufacturing Example 12

NALSTAR SR140 0.82 g and water 0.37 g were mixed to obtain 1.19 g of NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 9. Using the above-mentioned NALSTAR SR140 water dilution 1.19 g instead of 0.67 g of NALSTAR SR140 water dilution solution, the powder composition (7) 10 g was divided into four equal portions and added to form a coating layer, and then SORPOL 5080 was used. 0.1 g was attached to the outside to obtain the coated rice seed (12) of the present invention. Moreover, the total amount of water used for coating is 1.3g.

Manufacturing Example 13

0.47 g of NALSTAR SR140 and 0.36 g of water were mixed to obtain 0.77 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 9. 0.77 g of the NALSTAR SR140 water dilution solution described above was used instead of 0.67 g of the NALSTAR SR140 water dilution liquid, and the powdery composition (7) 10 g was divided into four equal portions and added to form a coating layer, and then SORPOL 5080 was formed. 0.2 g was attached to the outside to obtain the coated rice seed (13) of the present invention. Further, the total amount of water used for coating was 2.5 g.

Manufacturing Example 14

5.0 g of zinc oxide 3N5, 5.0 g of calcium carbonate granules and 0.2 g of SORPOL 5080 were mixed to obtain a powdery composition (10).

Further, 0.82 g of NALSTAR SR140 and 0.24 g of water were mixed to obtain 1.06 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above powder composition (10) 10.2 g instead of zinc oxide first 1 g, using the above NALSTAR SR140 water dilution 1.06 g instead of SUPERFLEX 500 M water dilution 0.41 g, and dividing each of them into quarters After the subsequent addition operation to form a coating layer, SORPOL 5080 0.1 g is attached to the outside thereof to obtain the coated rice of the present invention. Seed (14). Further, the total amount of water used for coating was 1.6 g.

Manufacturing Example 15

Zinc oxide 3N5 8.0 g and barite 2.0 g were mixed to obtain a powdery composition (11). The powdery composition (11) had an average particle diameter of 10.5 μm and an apparent specific gravity of 1.07 g/mL.

Further, 0.41 g of NALSTAR SR140 and 0.22 g of water were mixed to obtain 0.63 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above powder composition (11) 10g instead of zinc oxide first type 1g, using the above NALSTAR SR140 water dilution 0.63g instead of SUPERFLEX 500M water dilution 0.41g, and dividing each of them into four equal parts After the addition operation to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (15) of the present invention.

Further, the total amount of water used for coating was 2.0 g.

Manufacturing Example 16

A powdery composition (12) was obtained by mixing zinc oxide 3N5 9.0 g and Shengguangshan clay S1.0 g. The powdery composition (12) had an average particle diameter of 10.3 μm and an apparent specific gravity of 0.94 g/mL.

Further, 0.41 g of NALSTAR SR140 and 0.45 g of water were mixed to obtain 0.86 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. respectively Using the above-mentioned powdery composition (12) 10g instead of zinc oxide first type 1g, using the above-mentioned NALSTAR SR140 water dilution 0.86g instead of SUPERFLEX 500M water dilution 0.41g, and adding each of them into four equal parts and adding After the operation to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (16) of the present invention.

Further, the total amount of water used for coating was 2.4 g.

Manufacturing Example 17

The first 1.0 g of zinc oxide and 9.0 g of Rutile Flower were mixed to obtain a powdery composition (13). The powder composition (13) had an average particle diameter of 8.6 μm.

Further, 0.41 g of NALSTAR SR140 and 0.47 g of water were mixed to obtain 0.89 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above-mentioned powder composition (13) 10g instead of zinc oxide first type 1g, using the above NALSTAR SR140 water dilution 0.89g instead of SUPERFLEX 500M water dilution 0.41g, and dividing each of them into four equal parts After the addition operation to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (17) of the present invention.

Further, the total amount of water used for coating was 1.1 g.

Manufacturing Example 18

The second 5.0 g of zinc oxide and 5.0 g of barite were mixed to obtain a powdery composition (14). The powdery composition (14) had an average particle diameter of 1.6 μm and an apparent specific gravity of 0.87 g/mL.

Further, 0.41 g of NALSTAR SR140 and 0.98 g of water were mixed to obtain 1.39 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above-mentioned powder composition (14) 10g instead of zinc oxide first type 1g, using the above-mentioned NALSTAR SR140 water dilution 1.39g instead of SUPERFLEX 500M water dilution 0.41g, and dividing each of them into four equal parts After the addition operation was carried out to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain a coated rice seed (18) of the present invention.

Further, the total amount of water used for coating was 1.6 g.

Manufacturing Example 19

A second powder of 5.0 g of zinc oxide and 5.0 g of Rutile Flower were mixed to obtain a powdery composition (15). The powder composition (15) had an average particle diameter of 1.6 μm.

Further, 0.41 g of NALSTAR SR140 and 0.99 g of water were mixed to obtain 1.4 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above-mentioned powder composition (15) 10g instead of zinc oxide first type 1g, using the above NALSTAR SR140 water dilution 1.4g instead of SUPERFLEX 500M water dilution 0.41g, and each of them is divided After the operation was carried out by adding four equal parts to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain a coated rice seed (19) of the present invention. Further, the total amount of water used for coating was 1.7 g.

Manufacturing Example 20

A second composition of 5.0 g of zinc oxide and 5.0 g of Shouguangshan clay were mixed to obtain a powdery composition (16). The powdery composition (16) had an average particle diameter of 3.3 μm and an apparent specific gravity of 0.67 g/mL.

0.47 g of NALSTAR SR140 and 0.99 g of water were mixed to obtain 1.4 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above-mentioned powder composition (16) 10g instead of zinc oxide first type 1g, using the above NALSTAR SR140 water dilution 1.4g instead of SUPERFLEX 500M water dilution 0.41g, and dividing each of them into four equal parts After the addition operation to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (20) of the present invention. Further, the total amount of water used for coating was 2.24 g.

Manufacturing Example 21

The second 5.0 g of mixed zinc oxide and the clay powder were subjected to DL 5.0 g to obtain a powdery composition (17). The powder composition (17) had an average particle diameter of 16.9 μm.

Further, 0.41 g of NALSTAR SR140 and 0.99 g of water were mixed to obtain 1.4 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above-mentioned powder composition (17) 10g instead of zinc oxide first type 1g, using the above NALSTAR SR140 water dilution 1.4g instead of SUPERFLEX 500M water dilution 0.41g, and dividing each of them into four equal parts After the addition operation was carried out to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (21) of the present invention. Further, the total amount of water used for coating was 1.87 g.

Manufacturing Example 22

A second powder of 5.0 g of zinc oxide and 5.0 g of Sun-zeolite MGF were mixed to obtain a powdery composition (18). The powder composition (18) had an average particle diameter of 45.0 μm.

Further, 0.471 g of NALSTAR SR140 and 1.25 g of water were mixed to obtain 1.66 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above powder composition (18) 10g instead of zinc oxide first type 1g, using the above NALSTAR SR140 water dilution 1.66g instead of SUPERFLEX 500M water dilution 0.41g, and dividing each of them into four equal parts After the addition operation to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (22) of the present invention.

Further, the total amount of water used for coating was 3.29 g.

Production Example 23

The second 5.0 g of zinc oxide and 5.0 g of magnesium oxide were mixed to obtain a powdery composition (19). The powder composition (19) had an average particle diameter of 5.0 μm.

Further, 0.41 g of NALSTAR SR140 and 1.19 g of water were mixed to obtain 1.6 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 2. Using the above powder composition (19) 10g instead of zinc oxide first type 1g, using the above NALSTAR SR140 water dilution 1.6g instead of SUPERFLEX 500M water dilution 0.41g, and dividing each of them into four equal parts After the addition operation to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (23) of the present invention.

Further, the total amount of water used for coating was 3.5 g.

Manufacturing Example 24

2.5 g of SS#80 and 7.5 g of calcium carbonate G-100 were mixed to obtain a calcium carbonate mixture A.

Further, 0.41 g of NALSTAR SR140 and 0.21 g of water were mixed to obtain 0.62 g of a NALSTAR SR140 aqueous dilution liquid (hereinafter referred to as diluent A), and 0.471 g of NALSTAR SR140 and 0.26 g of water were mixed to obtain 0.67 g of a NALSTAR SR140 aqueous dilution liquid (hereinafter referred to as For the diluent B).

The following operations were carried out in accordance with the method described in Production Example 1. After soaking 20 g of dry rice seeds, use a simple seed coating machine to rotate it, and use a dropper to measure the amount of dilution A about 1/4 (about 0.15 g) was added to the rice seeds, and an amount of about 1/4 of the 10 g of the calcium carbonate mixture A (about 2.5 g) was added to adhere to the rice seeds. When the calcium carbonate mixture A adheres to the inner wall of the polyethylene cup 2, it is scraped off using a spatula, so that substantially the entire amount of the calcium carbonate mixture A added once is attached to the rice seed. Then, by repeating the same operation three times, 10 g of the calcium carbonate mixture A was adhered to the rice seed, and the first coating layer (hereinafter referred to as the first layer) containing calcium carbonate was formed. The total amount of water used for coating was 0.9 g.

Next, while maintaining the state of rotation of the rice seeds while the simple seed coating machine is being operated, zinc oxide 3N5 10g is added while dropping about 1/4 of the dilution liquid B (about 0.17 g) into the rice seeds using a dropper. The amount of about 1/4 (about 2.5 g) is attached to the outside of the first layer. When zinc oxide 3N5 adheres to the inner wall of the polyethylene cup 2, it is scraped off using a spatula, so that substantially the entire amount of zinc oxide 3N5 added once is attached to the rice seed. Thereafter, 10 g of zinc oxide 3N5 was adhered to the outside of the first layer by repeating the same operation three times, and a second coating layer containing zinc oxide (hereinafter referred to as a second layer) was formed on the outer side of the first layer. )form. The total amount of water used for coating was 4.8 g.

Next, the state of rotation of the rice seeds was maintained while the simple seed coating machine was operated, and 0.1 g of SORPOL 5080 was placed and attached to the outside of the second layer. The rice seeds taken out from the simple seed coating machine were spread on a stainless steel tray without being stacked, and allowed to dry overnight to obtain the coated rice seeds (24) of the present invention.

Manufacturing Example 25

After mixing 70.0 parts by weight of cotinine and 30.0 parts by weight of Shengguangshan clay S, it was pulverized by a centrifugal pulverizer to obtain a powdery pesticide A. The powdered pesticide A had an average particle diameter of 13.0 μm. 5.0 g of the mixed calcium carbonate granules and 0.086 g of the powdery pesticide A were used to obtain a calcium carbonate mixture B.

In addition, 0.27 g of NALSTAR SR140 and 0.35 g of water were mixed to obtain 0.56 g of a NALSTAR SR140 aqueous dilution liquid (hereinafter referred to as diluent C), and 0.21 g of NALSTAR SR140 and 0.35 g of water were mixed to obtain 0.56 g of a NALSTAR SR140 aqueous dilution liquid (hereinafter described). For the diluent D).

The following operations were carried out in accordance with the method described in Production Example 24. The above calcium carbonate mixture B 5.086 g was used instead of the calcium carbonate mixture A 10 g, and the above-mentioned dilution liquid C was used instead of the diluent A, and the operations of adding each of them into four equal portions were carried out, and the first layer was first formed. The total amount of water used for coating was 0.4 g.

Next, using the above-mentioned diluent D instead of the diluent B, the amount of zinc oxide 3N5 was taken as 5 g, and the operation of adding each of them into four equal portions was carried out to form a second layer. The total amount of water used for coating was 2.4 g. Finally, SORPOL 5080 0.1 g was attached to the outside of the second layer to obtain the coated rice seed (25) of the present invention.

Manufacturing Example 26

After mixing 70.0 parts by weight of dysprosin and 30.0 parts by weight of Shengguangshan clay S, it was pulverized by a centrifugal pulverizer to obtain a powdery pesticide B. Powder The average particle diameter of the pesticide B was 6.8 μm.

The powdery pesticide A 8.73 g obtained in Production Example 25, 500.0 g of zinc oxide 3N5, and 11.6 g of powdered pesticide B were mixed to obtain a powdery composition (20). The powder composition (20) had an average particle diameter of 8.4 μm.

Further, 20.6 g of NALSTAR SR140 and 5.0 g of water were mixed to obtain 25.6 g of a NALSTAR SR140 aqueous dilution.

About 5 L of water was placed in a polyethylene water tank, and 1 kg of dry rice seeds (Koshihikari rice) was added thereto, and soaked at about 10 ° C for 2 nights. Then, the rice seeds were taken out from the water, and the water was allowed to stand to remove excess water on the surface, and then placed in a drum of a seed coating machine (KC-151, manufactured by Kaiwen Co., Ltd.). The inclination angle (elevation angle) of the drum is adjusted to 45 degrees. By rotating the rice seed by the seed coating machine (the number of drum rotations: 21.9 rpm), about 1/4 of the 25.6 g of the NALSTAR SR140 water dilution liquid (about 6.4 g) was sprayed on the rice seed by a sprayer. An amount of about 1/4 (about 130.1 g) of 520.33 g of the powdery composition (20) was added to adhere to rice seeds. When the powdery composition (20) adheres to the inner wall of the drum, it is dropped by using a broom, so that substantially the entire amount of the powdery composition (20) added once is attached to the rice seed. Thereafter, by repeating the same operation three times, 520.33 g of the powdery composition (20) was attached to the rice seeds to form a coating layer. The total amount of water used for coating was 5.0 g. Next, the state of rotation of the rice seeds was maintained while the simple seed coating machine was operated, and 5.0 g of SORPOL 5080 was placed and attached to the outside of the coating layer. Rice seeds removed from the seed coating machine are laid flat in the seedling box without stacking It was dried overnight to obtain the coated rice seeds (26) of the present invention.

Manufacturing Example 27

5.0 g of zinc oxide 3N5 and 5.0 g of iron oxide were mixed to obtain a powdery composition (21). The powder composition (21) had an average particle diameter of 11.9 μm.

Further, 0.41 g of NALSTAR SR140 and 0.14 g of water were mixed to obtain 0.55 g of a NALSTAR SR140 aqueous dilution.

About 100 mL of water was placed in a polyethylene cup having a capacity of 200 mL, and 20 g of dried rice seeds were added thereto, and the mixture was immersed for 10 minutes. Thereafter, the rice seeds were taken out from the water, excess water on the surface was removed, and the mixture was placed in a polyethylene cup 2 mounted in a simple seed coating machine. By rotating the rice seed by the simple seed coating machine with the number of rotations of the agitator 3 being 130 to 140 rpm, a drop of about 1/4 of 0.55 g of the NALSTAR SR140 water dilution liquid was dropped onto the rice seed using a dropper ( About 0.14 g), about 1/4 of the 10 g of the powdery composition (21) was added (about 2.5 g), and it adhered to the rice seed. When the powdery composition (21) adheres to the inner wall of the polyethylene cup 2, it is scraped off using a spatula, so that substantially the entire amount of the powdery composition (21) added once is attached to the rice seed. . Thereafter, by repeating the same operation three times, 10 g of the powdery composition (21) was adhered to the rice seeds to form a coating layer. The total amount of water used for coating was 2.2 g. Next, the state of rotation of the rice seeds was maintained while the simple seed coating machine was operated, and 0.1 g of SORPOL 5080 was placed and attached to the outside of the coating layer. Rice seeds taken from a simple seed coating machine in a stainless steel tray The coated rice seeds (27) of the present invention were obtained by flattening them without stacking and allowing them to dry overnight.

Manufacturing Example 28

Zinc oxide 3N5 9.0 g and 1.0 g of iron oxide were mixed to obtain a powdery composition (22). The powder composition (22) had an average particle diameter of 8.6 μm.

Further, 0.36 g of Mowinyl 180E and 0.34 g of water were mixed to obtain 0.7 g of a water dilution of Mowinyl 180E.

The following operations were carried out in accordance with the method described in Production Example 27. 10 g of the powdery composition (22) was replaced with 10 g of the powder composition (21), and 0.7 g of the NALSTAR SR140 water dilution solution was replaced with 0.7 g of the Mowinyl 180E water dilution solution described above, and each of them was divided into four equal parts. After the coating operation was carried out to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain a coated rice seed (28) of the present invention. Further, the total amount of water used for coating was 2.3 g.

Manufacturing Example 29

The second 2.0 g of zinc oxide and 18.0 g of iron oxide were mixed to obtain a powdery composition (23). The powdery composition (23) had an average particle diameter of 10.6 μm and an apparent specific gravity of 1.89 g/mL.

Further, 0.41 g of NALSTAR SR140 and 0.40 g of water were mixed to obtain 0.81 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 27. Using the above powder composition (23) 20g instead of the powder composition (21) 10g, using the above-mentioned NALSTAR SR140 water dilution 0.81g instead of 0.55g of NALSTAR SR140 water dilution, and performing the operation of adding each of them into four equal parts to form a coating layer, and then making SORPOL 5080 0.1g Attached to the outside thereof, the coated rice seed (29) of the present invention is obtained. Further, the total amount of water used for coating was 2.0 g.

Manufacturing Example 30

The second 2.5 g of zinc oxide and 7.5 g of iron oxide were mixed to obtain a powdery composition (24). The powdery composition (24) had an average particle diameter of 2.7 μm and an apparent specific gravity of 1.38 g/mL.

Further, 1.24 g of NALSTAR SR140 and 1.04 g of water were mixed to obtain 2.28 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 27. 10 g of the powdery composition (24) was used instead of the powder composition (21) 10 g, and 2.28 g of the NALSTAR SR140 water dilution liquid was used instead of 0.55 g of the NALSTAR SR140 water dilution liquid, and each of them was divided into four equal parts. After the coating operation was carried out to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (30) of the present invention. Further, the total amount of water used for coating was 1.1 g.

Manufacturing Example 31

Mowinyl 180E 0.36 g and water 0.19 g were mixed to obtain 0.55 g of Mowinyl 180E water dilution.

The following operations were carried out in accordance with the method described in Production Example 27. Make 0.55 g of the Mowinyl 180E water dilution solution described above was used instead of 0.55 g of the NALSTAR SR140 water dilution liquid, and the powder layer composition (21) was divided into four equal portions and added to form a coating layer, and then SORPOL was formed. 5080 0.1 g was attached to the outside to obtain the coated rice seed (31) of the present invention. Further, the total amount of water used for coating was 1.4 g.

Manufacturing Example 32

The SUPERFLEX 500M 0.44 g and water 0.17 g were mixed to obtain 0.61 g of SUPERFLEX 500 M aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 27. Using the above-mentioned SUPERFLEX 500M water dilution 0.61 g instead of 0.55 g of NALSTAR SR140 water dilution liquid, and performing the operation of adding the powder composition (21) 10g to each of the four equal parts and adding the coating layer to form a coating layer, and then making SORPOL 5080 0.1 g was attached to the outside to obtain the coated rice seed (32) of the present invention. Further, the total amount of water used for coating was 1.8 g.

Manufacturing Example 33

A second powder of 2.5 g of zinc oxide, 7.5 g of iron oxide, and 0.4 g of Mowinyl-Powder LDM7000P were mixed to obtain a powdery composition (25). The powdery composition (25) had an average particle diameter of 2.6 μm and an apparent specific gravity of 1.33 g/mL.

The following operations were carried out in accordance with the method described in Production Example 27. will After soaking 20 g of dry rice seeds, the machine was rotated by a simple seed coating machine, and water (12.5 g) of about 10.4 g of the powdery composition (25) was added while spraying water on the rice seeds with a sprayer. It is attached to rice seeds. When the powdery composition (25) adheres to the inner wall of the polyethylene cup 2, it is scraped off using a spatula, so that substantially the entire amount of the powdery composition (25) added once is attached to the rice seed. . Thereafter, by repeating the same operation three times, 10.4 g of the powdery composition (25) was adhered to rice seeds to form a coating layer. The total amount of water used for coating was 1.5 g. Next, the state of rotation of the rice seeds was maintained while the simple seed coating machine was operated, and 0.1 g of SORPOL 5080 was placed and attached to the outside of the coating layer. The rice seeds taken out from the simple seed coating machine were flattened on a stainless steel tray without being stacked, and allowed to dry overnight to obtain the coated rice seeds (33) of the present invention.

Manufacturing Example 34

Mix Mowinyl 6485 0.36 g and water 0.37 g to obtain 0.73 g of Mowinyl 6485 water dilution.

The following operations were carried out in accordance with the method described in Production Example 27. The powder composition (24) was used instead of the powder composition (21) 10 g, and the above-mentioned Mowinyl 6485 water dilution solution 0.73 g was used instead of the NALSTAR SR140 water dilution liquid 0.55 g, and the same was divided into four equal parts and added. After the operation to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (34) of the present invention. Further, the total amount of water used for coating was 1.7 g.

Manufacturing Example 35

After mixing 70.0 parts by weight of cotinine and 30.0 parts by weight of Shengguangshan clay S, it was pulverized by a centrifugal pulverizer to obtain a powdery pesticide A. The powdered pesticide A had an average particle diameter of 13.0 μm. A second powder of 2.5 g of zinc oxide, 7.5 g of iron oxide, and 0.086 g of powdered pesticide A were mixed to obtain a powdery composition (26).

Further, 0.41 g of NALSTAR SR140 and 0.50 g of water were mixed to obtain 0.91 g of a NALSTAR SR140 aqueous dilution.

The following operations were carried out in accordance with the method described in Production Example 27. Using the above powder composition (26) 10.086 g instead of the powder composition (21) 10 g, using the above-mentioned NALSTAR SR140 water dilution 0.91 g instead of the NALSTAR SR140 water dilution 0.55 g, and dividing each of them into four After the operation of adding the aliquot to form a coating layer, SORPOL 5080 0.1 g was attached to the outside thereof to obtain the coated rice seed (35) of the present invention. Further, the total amount of water used for coating was 1.3 g.

Manufacturing Example 36

After mixing SUPERFLEX 500M 0.40 g and water 0.76 g, 1.2 g of SUPERFLEX 500 M water dilution liquid (hereinafter referred to as diluent E) was obtained, and SUPERFLEX 500M 0.04 g and water 1.13 g were mixed to obtain 1.97 g of SUPERFLEX 500 M water dilution liquid (hereinafter referred to as dilution). Liquid F).

The following operations were carried out in accordance with the method described in Production Example 27. will After immersing the dried rice seeds in 20 g, the machine was rotated by a simple seed coating machine, and about 1/4 of the dilution E (about 0.3 g) was dropped onto the rice seeds using a dropper, and 1/4 of the iron oxide 9 g was added. The amount on the left and right (about 2.3 g) was allowed to adhere to the rice seeds. When the iron oxide adheres to the inner wall of the polyethylene cup 2, it is scraped off using a spatula, so that substantially the entire amount of the iron oxide added once is attached to the rice seed. Thereafter, by repeating the same operation three times, 9 g of iron oxide was adhered to rice seeds, and a first coating layer (hereinafter referred to as a first coating layer) containing iron oxide was formed. The total amount of water used for coating was 0.8 g.

Next, while maintaining the rotation state of the rice seed in a state where the simple seed coating machine is operated, the amount of about 1/4 of the dilution liquid B (about 0.3 g) is dropped onto the rice seed using a dropper, and zinc oxide 3N5 1 g is added. The amount of about 1/4 (about 0.25 g) was adhered to the outside of the first coating layer. When zinc oxide 3N5 adheres to the inner wall of the polyethylene cup 2, it is scraped off using a spatula, so that substantially the entire amount of zinc oxide 3N5 added once is attached to the rice seed. Then, by repeating the same operation three times, 1 g of zinc oxide 3N5 adheres to the outside of the first layer, and a second coating layer of zinc oxide is provided on the outer side of the first layer (hereinafter referred to as the second layer). )form. The total amount of water used for coating was 1.9 g.

Next, the state of rotation of the rice seeds was maintained while the simple seed coating machine was being operated, and 0.1 g of SORPOL 5080 was placed and attached to the outside of the second coating layer. The rice seeds taken out from the simple seed coating machine were spread on a stainless steel tray without being stacked, and allowed to dry overnight to obtain the coated rice seeds (36) of the present invention.

Comparative manufacturing example 1

DAE1K 10g and KTS-1 1g were mixed to obtain 11 g of an iron mixture A.

The following operations were carried out in accordance with the method described in Production Example 1. After immersing 20 g of dried rice seeds, it was rotated by a simple seed coating machine, and water was sprayed on the rice seeds while using a dropper to add about 1/4 of an iron mixture A 11 g (about 2.8 g) to adhere thereto. On rice seeds. When the iron mixture A adheres to the inner wall of the polyethylene cup 2, it is scraped off using a spatula, so that substantially the entire amount of the iron mixture A added once is attached to the rice seed. Thereafter, by repeating the same operation three times, the iron mixture A 11g was attached to the rice seed to form a coating layer. The total amount of water used for coating was 1.9 g. Next, the state of rotation of the rice seeds was maintained while the simple seed coating machine was operated, and 0.5 g of KTS-1 was placed and attached to the outside of the coating layer. The rice seeds taken out from the simple seed coating machine were laid flat on a stainless steel platter without being stacked, and the operation of spraying the rice seeds three times a day for two days was carried out to promote the oxidation of iron. Thereafter, it was dried to obtain a comparative coated rice seed (I).

Comparative manufacturing example 2

50 g of DAE1K and 50 g of KTS-1 were mixed to obtain 550 g of an iron mixture B.

Put about 5L of water in a polyethylene bucket and put it into dry rice. 1 kg of rice seeds (Koshihikari), soaked for 2 nights at about 10 °C. Then, the rice seeds were taken out from the water, and the water was allowed to stand to remove excess water on the surface, and then placed in a drum of a seed coating machine (KC-151, manufactured by Kaiwen Co., Ltd.). The inclination angle (elevation angle) of the drum is adjusted to 45 degrees. By rotating the rice seed by the seed coating machine (the number of drum rotations: 21.9 rpm), water was sprayed on the rice seed by a sprayer, and about 1/4 of the iron mixture B 550 g (about 138 g) was added. To make it adhere to rice seeds. When the iron mixture B adheres to the inner wall of the drum, it is dropped by using a broom, so that substantially the entire amount of the iron mixture B added once is attached to the rice seed. Thereafter, by repeating the same operation three times, 550 g of the iron mixture B was adhered to the rice seeds to form a coating layer. The total amount of water used for coating was about 100 g. Next, the state of rotation of the rice seeds was maintained while the seed coating machine was being operated, and 25 g of KTS-1 was placed and attached to the outside of the coating layer. The rice seeds taken out from the seed coating machine are laid flat in a seedling box without stacking, and the operation of spraying the rice seeds about three times a day for about one day is promoted to promote oxidation of iron for about one week. It is then dried to obtain a comparative coated rice seed (II).

Test examples are shown below.

Test example 1

About 30 g of soil was placed in a plastic petri dish, and 50 pieces of the coated rice seeds were spread on the soil surface after being wetted with water. The plastic culture dish is placed outside the house, and the plastic is observed by shooting with a time-lapse camera. The condition of the petri dish was counted, and the coated rice seeds remaining after 1 day of seeding were counted, and the residual ratio was calculated from the following formula.

Residual rate (%) = number of coated rice seeds remaining after 1 day of sowing / 50 × 100

The results are shown in Table 1. Further, the rice seeds (control group) in Table 1 refer to uncoated rice seeds, and since the seeds are lost by eating by birds such as sparrows, the residual ratio is 0%.

Test example 2

A gauze dampened with water was placed in a plastic petri dish, and 20 coated rice seeds were sprayed thereon. The plastic culture dish was capped and placed in a thermostat set at 17 ° C. After 10 days, the presence or absence of germination was examined. The germination rate was calculated by the formula.

Germination rate (%) = number of seeds germinated / 50 × 100

The results are shown in Table 2.

Test Example 3

The water was removed after the water diversion was carried out on the paddy field of 12.9 m × 100 m. A zone was set to 0.9 m x 70 m, and the coated rice seeds were sprinkled on the soil surface of the zone. The planting system has a row spacing of 30 cm and a spacing of 18 cm between the plants, and the number of coated rice seeds at each location is set to 5-7. Granules are carried out.

After sowing, water is introduced to the paddy field. After 13 days of sowing, it was confirmed whether there were seedlings at the seeding position for 90 randomly selected, and the emergence rate was investigated. The emergence rate was calculated by the following formula.

Seedling rate (%) = number of seedlings present / 90 × 100

The results are shown in Table 3.

Test Example 4

10 pieces of the coated rice seeds were placed in a petri dish containing 3 mL of hard water of 50 mL, and allowed to stand at room temperature (about 20 ° C). After 30 minutes, the presence or absence of peeling of the coating was visually observed.

The results are shown in Table 4.

Test Example 5

About 30 g of soil was placed in a plastic petri dish, and 50 pieces of the coated rice seeds were spread on the soil surface after being wetted with water. Culture the plastic The dish was placed outside the house, and the condition of the plastic dish was observed by photographing with a time-lapse camera. The coated rice seeds remaining after one day of seeding were counted, and the residual rate was calculated from the following formula.

Residual rate (%) = number of coated rice seeds remaining after 1 day of sowing / 50 × 100

The results are shown in Table 5. Further, the rice seeds (control group) in Table 5 refer to uncoated rice seeds, and since the seeds are lost by eating by birds such as sparrows, the residual ratio is 0%.

Test Example 6

A gauze dampened with water was placed in a plastic petri dish, and 20 coated rice seeds were sprayed thereon. The plastic petri dish was capped, placed in a thermostat set at 17 ° C, and the presence or absence of germination was examined 10 days later, and the germination rate was calculated from the following formula.

Germination rate (%) = number of seeds germinated / 50 × 100

The results are shown in Table 6.

Test Example 7

10 pieces of the coated rice seeds were placed in a petri dish containing 3 mL of hard water of 50 mL, and allowed to stand at room temperature (about 20 ° C). After 30 minutes, the presence or absence of peeling of the coating was visually observed.

The results are shown in Table 7.

Claims (22)

A coated rice seed having a coated layer of coated rice seeds, the coating layer comprising zinc oxide, a surfactant, and at least one selected from the group (A) below; Group (A): a group composed of an acrylic resin, a vinyl acetate resin, a urethane resin, and a butadiene copolymer. A coated rice seed having a coated layer of coated rice seeds, the coating layer comprising zinc oxide and at least one selected from the group (A) below, and a surfactant It is at least maintained on the surface; Group (A): a group composed of an acrylic resin, a vinyl acetate resin, a urethane resin, and a butadiene copolymer. The coated rice seed of claim 1 or 2, wherein the coating layer comprises at least one selected from the group consisting of: (B): from titanium oxide, magnesium oxide, clay, zeolite, a group of barium sulfate and calcium carbonate. The coated rice seed according to claim 3, wherein the coating layer has a first layer containing at least one selected from the group (B) and a zinc oxide containing the outer layer provided on the outer side of the first layer The second layer is made. The coated rice seed of any one of claims 1 to 3, wherein the coating layer further comprises iron oxide. The coated rice seed according to claim 5, wherein the coating layer has a first layer containing iron oxide and a second layer containing zinc oxide disposed outside the first layer. a powdery composition having an average particle diameter of 0.01 to 150 μm, which comprises zinc oxide and at least one selected from the group (B) below; and a group (B): titanium oxide, magnesium oxide, clay, a group of zeolites, barium sulfate, and calcium carbonate. A powdery composition comprising zinc oxide, at least one selected from the group consisting of the following group (B), and at least one selected from the group (C) below; and the group (B): titanium oxide, magnesium oxide, a group consisting of clay, zeolite, barium sulfate, and calcium carbonate; group (C): a group consisting of an acrylic resin and a vinyl acetate resin. A powdery composition comprising zinc oxide and iron oxide, a weight ratio of zinc oxide to iron oxide of 1:1000 to 1:1, and an average particle diameter of 0.01 to 150 μm. A powdery composition comprising zinc oxide, iron oxide and an acrylic resin. The powdery composition according to any one of claims 7 to 10, which has an apparent specific gravity in the range of 0.30 to 2.50 g/mL. The powdery composition according to any one of claims 7 to 10, which has an apparent specific gravity of 0.30 to 2.0 g/mL. The powdery composition according to any one of claims 7 to 12, wherein the zinc oxide has an average particle diameter in the range of 0.01 to 100 μm. A kit for producing coated rice seeds, which comprises at least one of zinc oxide, a surfactant, and at least one selected from the group (A) below; Group (A): a group composed of an acrylic resin, a vinyl acetate resin, a urethane resin, and a butadiene copolymer. The kit of claim 14 further comprising iron oxide. The kit of claim 14 or 15, which has at least one selected from the group consisting of: (B): consisting of titanium oxide, magnesium oxide, clay, zeolite, barium sulfate, and calcium carbonate. Group. A method for producing a coated rice seed, which comprises the steps of: (1) adding at least one aqueous dispersion selected from the group (A) below and zinc oxide while rotating the rice seed; Further, a step of forming a coating layer containing at least one selected from the group (A) and zinc oxide; (2) adding a surfactant while rotating the seed obtained in the step (1), and making the interface a step of maintaining the active agent on the outer side of the layer formed in the above step (1); and (3) a step of drying the seed obtained in the above step (2); group (A): an acrylic resin, a vinyl acetate resin A group of urethane resins and butadiene copolymers. A method for producing a coated rice seed, which comprises the steps of: (1) adding at least one aqueous dispersion selected from the group (A) below, while rotating the rice seed, selected from the group consisting of At least one of the group (B) and zinc oxide are contained, and at least one selected from the group (A) below is selected. a step of forming at least one of the following groups (B) and a coating layer of zinc oxide; (2) adding a surfactant while rotating the seed obtained in the above step (1) to maintain the surfactant a step of the outer side of the layer formed in the above step (1); and (3) a step of drying the seed obtained in the above step (2); a group (A): an acrylic resin, a vinyl acetate resin, an amine group Group consisting of an acid ester resin and a butadiene copolymer; Group (B): a group consisting of titanium oxide, magnesium oxide, clay, zeolite, barium sulfate, and calcium carbonate. A method for producing a coated rice seed, which comprises the steps of: (1) (I) adding at least one aqueous dispersion selected from the group (A) below while rotating the rice seed; a step of forming at least one selected from the group (B) below and forming at least one selected from the group (A) below and at least one selected from the group (B) below, and (II) A layer formed in the above step (I) by adding at least one aqueous dispersion selected from the group (A) below and zinc oxide while rotating the seed obtained in the above step (I) The outer side is a step of forming a coating layer containing at least one selected from the group (A) below and zinc oxide; and (2) adding a surfactant while rotating the seed obtained in the step (1); a step of maintaining the surfactant on the outside of the layer formed in the aforementioned step (1); and (3) a step of drying the seed obtained in the above step (2); Group (A): from acrylic resin, vinyl acetate Resin, amine base Group consisting of an acid ester resin and a butadiene copolymer; Group (B): a group consisting of titanium oxide, magnesium oxide, clay, zeolite, barium sulfate, and calcium carbonate. A method for producing a coated rice seed, which comprises the steps of: (1) adding at least one aqueous dispersion selected from the group (A) below, zinc oxide, and the like while rotating the rice seed; a step of forming a coating layer containing at least one selected from the group (A) below, zinc oxide and iron oxide, and (2) adding the seed obtained in the step (1) while rotating a surfactant, a step of maintaining the surfactant on the outside of the layer formed in the above step (1); and (3) a step of drying the seed obtained in the above step (2); Group (A): from acrylic acid A group consisting of a resin, a vinyl acetate resin, a urethane resin, and a butadiene copolymer. A method for producing a coated rice seed, which comprises the steps of: (1) (i) adding at least one aqueous dispersion selected from the group (A) below while rotating the rice seed; And the step of forming the coating layer containing at least one selected from the group (A) and the iron oxide, and (ii) rotating the seed obtained in the step (i) while adding At least one aqueous dispersion of the following group (A) and zinc oxide, and the outer side of the layer formed in the above step (i) is made to contain at least one selected from the group (A) below and zinc oxide. a step of forming a coating layer; (2) adding a interface while rotating the seed obtained in the above step (1) a step of maintaining the surfactant on the outer side of the layer formed in the above step (1); and (3) a step of drying the seed obtained in the above step (2); group (A): from an acrylic resin A group consisting of a vinyl acetate resin, a urethane resin, and a butadiene copolymer. A coated rice seed produced by the manufacturing method according to any one of claims 17 to 21.