CN107426961A - It is coated rice paddy seed and preparation method thereof - Google Patents

It is coated rice paddy seed and preparation method thereof Download PDF

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Publication number
CN107426961A
CN107426961A CN201680022115.8A CN201680022115A CN107426961A CN 107426961 A CN107426961 A CN 107426961A CN 201680022115 A CN201680022115 A CN 201680022115A CN 107426961 A CN107426961 A CN 107426961A
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CN
China
Prior art keywords
rice paddy
paddy seed
seed
zinc oxide
coatings
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CN201680022115.8A
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Chinese (zh)
Inventor
住田智子
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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Publication of CN107426961A publication Critical patent/CN107426961A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
    • A01C1/06—Coating or dressing seed
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
    • C09D129/02—Homopolymers or copolymers of unsaturated alcohols
    • C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic

Abstract

The invention provides the coating rice paddy seed containing coatings, the coatings include：With more than 500 degree of polymerization and with the polyvinyl alcohol of the saponification degree in the range of 71.0 97.5mol%；Zinc oxide；Bentonite；And surfactant.

Description

It is coated rice paddy seed and preparation method thereof
Technical field
The present invention relates to one kind coating rice paddy seed and preparation method thereof.
Background technology
Paddy directly sows the cultural method cultivated and represented by the way that rice paddy seed to be directly seeded into rice field, and it, which has, saves The advantages of agricultural operation, because this method does not need some nursery and transplanting operation.However, this method has easily by birds such as duck The shortcomings that feeding infringement with sparrow is the influence of bird pest.Cause yield reduction because the planting percent of bird pest reduces, it is therefore desirable to For avoiding the strategy of bird pest.As the general categories for avoiding bird pest, it has for instance been proposed that a kind of use water management The method for preventing and treating bird pest.However, this method must change the system of management (see, for example, non-patent literature according to the type of bird 1)。
In addition, the waterflooding of iron coating directly sowing is known as being coated to prevent seed rice paddy seed by using iron powder Floated in soil surface sowing to prevent and treat the technological means of the feeding of sparrow infringement (see, for example, non-patent literature 2).However, Due to solidification of the technological means using iron powder caused by its oxidation, so being coated the heavy of rice paddy seed in the presence of some management Task, hot demand removes the problem of otherwise non-management abundance reduces germination percentage with some as caused by release oxidation.Solve this to ask The scheme of topic is known as with the polyvinyl alcohol with high saponification degree and coating material as iron oxide is coated to rice paddy seed Method (referring to patent document 1).
Quote inventory
Patent document
Patent document 1：JP 2013-146266 A1
Non-patent literature
Non-patent literature 1：Nagao SAKAI and other three people, " Prevention of bird damage in the Flowed paddy rice direct sowing cultivation (directly sow the bird pest in cultivation in flowing paddy Preventing and treating) ", The Hokuriku Crop Science, the Crop Science Society of Japan, in March, 1999 31 days, volume 34, the 59-61 pages
Non-patent literature 2：Minoru YAMAUCHI, " A manual for direct sowing of iron- (direct sowing of the rice of iron coating in submerged weir flow of coated rice on a flooded paddy field 2010 Handbook 2010) ", The National Agriculture and Food Research Organization, Western Region Agricultural Research Center, in March, 2010.
Summary of the invention
(problem to be solved by this invention)
However, the rice paddy seed of iron oxide coating is insufficient to the prevention effect of bird pest.
It is an object of the present invention to provide coating rice paddy seed, the coating rice paddy seed is less susceptible to be influenceed by bird pest, And prevent seed floating and germination percentage from reducing.
(means for solving problem)
The present inventor studies and is found that this coating rice paddy seed deeply and carefully, and consequently found that by apparatus There are more than 500 degree of polymerization and the polyvinyl alcohol of the saponification degree in the range of 71.0mol% to 97.5mol%, zinc oxide, swelling Soil and the rice paddy seed of surfactant coating, which are seeded into rice field, to be allowed to ensure directly to sow in paddy due to the bird pest of reduction Sufficient planting percent in cultivation.
The present invention is as follows.
[1] a kind of coating rice paddy seed with coatings, wherein the coatings are included with more than 500 degree of polymerization Polyvinyl alcohol, zinc oxide, bentonite and surfactant with the saponification degree in the range of 71.0mol% to 97.5mol%.
[2] a kind of coating rice paddy seed with coatings, wherein the coatings are included with more than 500 degree of polymerization With the polyvinyl alcohol, zinc oxide and bentonite of the saponification degree in the range of 71.0mol% to 97.5mol%, and at least in institute State and maintain surfactant on the surface of coating rice paddy seed.
[3] the coating rice paddy seed according to [1] or [2], wherein the coatings are included selected from following (A) group extremely Few one kind；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
[4] according to the coating rice paddy seed described in [3], wherein the coatings have comprising selected from (A) group extremely A kind of few first layer and the second layer for including zinc oxide in the outside for being coated on the first layer.
[5] the coating rice paddy seed according to any one of [1] to [3], wherein the coatings also include iron oxide.
[6] the coating rice paddy seed according to [5], wherein the coatings have first layer and bag comprising iron oxide Overlay on the second layer for including zinc oxide in the outside of the first layer.
[7] a kind of powdered composition, the powdered composition include with more than 500 the degree of polymerization and Polyvinyl alcohol, zinc oxide and the bentonite of saponification degree in the range of 71.0mol% to 97.5mol%.
[8] powdered composition according to [7], the powdered composition are included selected from following (A) group at least It is a kind of；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
[9] powdered composition according to [7] or [8], wherein particle mean size is in the range of 0.01 to 150 μm.
[10] according to the powdered composition any one of [7] to [9], wherein apparent relative density 0.30 to In the range of 2.50g/mL.
[11] according to the powdered composition any one of [7] to [9], wherein apparent relative density 0.30 to In the range of 2.0g/mL.
[12] powdered composition according to any one of [7] to [11], the powdered composition also include oxygen Change iron.
[13] powdered composition according to any one of [7] to [12], the particle mean size of wherein zinc oxide exist In the range of 0.01 to 100 μm.
[14] a kind of kit for being used to prepare coating rice paddy seed, the kit at least have more than 500 polymerization Polyvinyl alcohol, zinc oxide, bentonite and the surfactant of degree and the saponification degree in the range of 71.0mol% to 97.5mol%.
[15] kit according to [14], the kit also have iron oxide.
[16] kit according to [14] or [15], the kit have at least one selected from following (A) group；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
[17] a kind of method for being used to prepare coating rice paddy seed, the described method comprises the following steps：
(1) added while moving and rolling rice paddy seed with more than 500 degree of polymerization and in 71.0mol% extremely The polyvinyl alcohol of saponification degree in the range of 97.5mol%, zinc oxide, bentonite, at least one selected from following (A) group and water with Formed comprising the polyvinyl alcohol, zinc oxide, bentonite and selected from following (A) group at least one coatings the step of,
(2) surfactant is added while moving and rolling the seed obtained in step (1) so that the surface Activating agent is maintained at the step of outside of the layer formed by step (1), and
(3) the step of drying the seed obtained in step (2)；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
[18] a kind of method for being used to prepare coating rice paddy seed, the described method comprises the following steps：
(1) (I) addition while moving and rolling rice paddy seed has more than 500 degree of polymerization and in 71.0mol% The polyvinyl alcohol of saponification degree in the range of to 97.5mol%, bentonite, at least one selected from following (A) group and water are to form The step of comprising the polyvinyl alcohol, bentonite and selected from least one coatings that following (A) is organized, and (II) are being moved simultaneously The polyvinyl alcohol, zinc oxide, bentonite and water are added to pass through step while rolling the seed obtained in step (I) (I) the step of outside of the layer formed is formed comprising the polyvinyl alcohol, zinc oxide and bentonitic coatings,
(2) surfactant is added while moving and rolling the seed obtained in step (1) so that the surface Activating agent is maintained at the step of outside of the layer formed by step (1), and
(3) the step of drying the seed obtained in step (2)；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
[19] coating rice paddy seed prepared by a kind of method by according to [17] or [18].
[20] a kind of method for being used to prepare coating rice paddy seed, the described method comprises the following steps：
(1) added while moving and rolling rice paddy seed with more than 500 degree of polymerization and in 71.0mol% extremely Polyvinyl alcohol, zinc oxide, iron oxide, bentonite and the water of saponification degree in the range of 97.5mol% include the poly- second to be formed The step of enol, zinc oxide, iron oxide and bentonitic coatings,
(2) surfactant is added while moving and rolling the seed obtained in step (1) so that the surface Activating agent is maintained at the step of outside of the layer formed by step (1), and
(3) the step of drying the seed obtained in step (2).
[21] a kind of method for being used to prepare coating rice paddy seed, the described method comprises the following steps：
(1) (i) addition while moving and rolling rice paddy seed has more than 500 degree of polymerization and in 71.0mol% Polyvinyl alcohol, iron oxide, bentonite and the water of saponification degree in the range of to 97.5mol% with formed include the polyvinyl alcohol, The step of iron oxide and bentonitic coatings, and (ii) add while moving and rolling the seed obtained in step (i) The polyvinyl alcohol, zinc oxide, bentonite and water is added to include the poly- second to be formed in the outside of the layer formed by step (i) The step of enol, zinc oxide and bentonitic coatings,
(2) surfactant is added while moving and rolling the seed obtained in step (1) so that the surface Activating agent is maintained at the step of outside of the layer formed by step (1), and
(3) the step of drying the seed obtained in step (2).
[22] coating rice paddy seed prepared by a kind of method by according to [20] or [21].
(invention effect)
The coating rice paddy seed of the present invention is less susceptible to be influenceed by bird pest, and prevents seed floating and germination percentage from reducing, with And allow to ensure directly to sow planting percent sufficient in cultivation in paddy.
Brief description of the drawings
[Fig. 1] illustrate embodiment in for the figure for the simple seed pelleting machine being coated to rice paddy seed.
The mode to carry out an invention
The coating rice paddy seed (hereinafter, being referred to as " this rice paddy seed ") of the present invention has coatings, it is characterised in that The coatings include the poly- second with more than 500 degree of polymerization and the saponification degree in the range of 71.0mol% to 97.5mol% Enol (hereinafter, be referred to as " this PVA "), zinc oxide, bentonite and surfactant, or the coatings include this PVA, Zinc oxide and bentonite, and at least maintain surfactant on the surface of the coatings.
As used herein rice paddy seed is intended to mean the seed for the rice varieties generally cultivated.
The example of the kind includes Via-back puncture (Japonica subspecies) and Xian subspecies (Indica Subspecies species), and the kind with high lodging resistance and bud rate occurred frequently is preferable.
This as used herein PVA is intended to mean the polymer compound with the structure represented with following formula (1), wherein The degree of polymerization is more than 500, and saponification degree is in the range of 71.0mol% to 97.5mol%.
In formula (1), m+n represents the degree of polymerization, and { m/ (m+n) } x100 (mol%) represents saponification degree.As made herein The degree of polymerization of polyvinyl alcohol means to calculate by the method for testing of the polyvinyl alcohol according to specified in JIS K6726-1994 And the average degree of polymerization determined, and this PVA degree of polymerization is preferably 500 to 3000, more preferably 1000 to 2500, still more preferably In the range of 1500 to 2500.The saponification degree of as used herein polyvinyl alcohol means by according in JIS K6726-1994 The saponification degree that the method for testing of defined polyvinyl alcohol is calculated and determined, and this PVA saponification degree preferably in 78.5mol% extremely 97.5mol% and more preferably 86.5mol% are in the range of 97.5mol%.This PVA is commercially available and commercially available sheet PVA example includes the KURARAY POVAL PVA-220S (degree of polymerization：2000, saponification degree：87.0mol% to 89.0mol%, By Kuraray Co., Ltd. (KURARAY CO., LTD.) manufacture), the KURARAY POVAL PVA-205S (degree of polymerization：500, soap Change degree：86.5mol% to 89.0mol%, by Kuraray, Co., Ltd. manufactures) and the GOHSENOL GM-14S (degree of polymerization：1000 To 1500, saponification degree：86.5mol% to 89.0mol%, is manufactured by the Nippon Synthetic Chemical Industry Co., Ltd).
As it is used herein, powdery polyethylene alcohol is preferably used, and it is preferably used and is with wherein size The content of more than 180 μm of particle is the polyvinyl alcohol of less than 0.5% size distribution." polyvinyl alcohol as used herein Size distribution " mean the size distribution that is measured using sieve method, and as used herein " it is 180 μ to have wherein size The content of more than m particle is less than 0.5% size distribution " represent the amount that remains on 180 μm of hole sizers relative to total amount Weight ratio is less than 0.5%.The size distribution of polyvinyl alcohol can pass through following acquisition：10g polyvinyl alcohol is placed on 180 μm Hole sizer (is defined by Japanese Industrial Standards (JIS) Z8801-1 and its framework has the examination of 200mm diameter and 45mm depth Test sieve) on, polyvinyl alcohol is sieved 10 minutes with screening plant such as ro-tap shaking machines, weighs the poly- second remained on sieve afterwards The weight of enol, and size distribution is calculated according to below equation.
The amount (%)=weight (g) of the polyvinyl alcohol remained on sieve/remained on sieve is initially placed at poly- on sieve Weight (g) × 100 of vinyl alcohol
The content of this PVA in this rice paddy seed generally in 0.01wt% to 5wt%, preferably 0.01wt% to 3wt%, more It is preferred that in the range of 0.1wt% to 2wt%.
As used herein zinc oxide is intended to mean the compound for being expressed as ZnO, and it can be commercially available zinc oxide.City The example for the zinc oxide sold includes zinc oxide 3N5 (being manufactured by Kanto Kagaku K. K.) and the second grade of zinc oxide (second Grade) (manufactured by Nippon Chemical Ind).Zinc oxide as used herein preferably has more than 99% Purity (relative to the wt% of the zinc oxide).The purity of zinc oxide is tried specified in Japanese Industrial Standards (JIS) K1410 Program is tested to determine.In addition, usually using powdered zinc oxide, and the particle mean size of zinc oxide 0.01 to 100 μm, preferably In the range of 0.1 to 50 μm, more preferably 0.1 to 10 μm.The particle mean size expression of as used herein zinc oxide is spread out with laser Penetrate/scatter-type particle size distribution analysis instrument determine granularity, it is defined to correspond to 50% in the frequency disribution based on volume The granularity of accumulation.The particle mean size of zinc oxide, which can use, to be distributed to the particle of zinc oxide in water and then utilizes Mastersizer 2000 (being manufactured by Malvern Instr Ltd. (Malvern Instruments Ltd)) spreads out as laser Penetrate/method (that is, wet type measuring method) of scatter-type particle size distribution analysis instrument measurement determines.
The content of zinc oxide in this rice paddy seed generally in 0.005wt% to 80wt%, preferably 0.05wt% extremely 70wt%, more preferably 0.1wt% are in the range of 50wt%.In view of the influence to plant growth and environment, 0.1wt% is extremely 15wt% scope is preferable.
As used herein bentonite is intended to mean the clay being mainly made up of montmorillonite, and it is categorized as in montmorillonite It is main comprising being used as in sodium bentonite of the sodium ion as dominant cation and the interbed in montmorillonite comprising calcium ion in interbed The calcium bentonite of cation.Bentonite be commercially available and commercially available bentonitic example include bentonite HOTAKA (by HOJUN Co., Ltd.s manufacture) and KUNIGEL V1 (being manufactured by KUNIMINE INDUSTRIES CO., LTD.).Such as this paper institutes Use, it is preferred to use powdered bentonite, and containing with the particle that wherein size is more than 75 μm is preferably used Measure the bentonite of the size distribution for less than 20%." bentonitic size distribution " means to use sieve method as used herein The size distribution of measurement, and it is as used herein " content with the wherein particle that size is more than 75 μm be 20% with Under size distribution " represent that the amount that remains on 75 μm of hole sizers relative to the weight ratio of total amount is less than 20%.Bentonitic grain Degree distribution can pass through following acquisition：It is (fixed by Japanese Industrial Standards (JIS) Z8801-1 that 10g bentonites are placed on 75 μm of hole sizers Adopted and its framework has 200mm diameter and the testing sieve of 45mm depth) on, will with screening plant such as ro-tap shaking machines Bentonite sieves 10 minutes, weighs the weight of the surfactant remained on sieve afterwards, and calculate granularity according to below equation Distribution.
The amount (%)=the bentonitic weight (g) remained on sieve/remained on sieve is initially placed at the swelling on sieve Weight (g) × 100 of soil
Bentonitic content in this rice paddy seed generally 0.01wt% to 10wt%, preferably 0.05wt% to 5wt%, In the range of more preferably 0.1wt% to 3wt%.
As used herein surfactant is preferably selected from is lived by nonionic surfactant and anionic surface Property agent composition at least one of group, and be more preferably selected from by polyoxyethylene alkyl ether, polyoxyethylene aryl phenyl At least one of group of ether and sulfonate composition.In addition, polyoxyethylene aryl phenyl ether is preferably the more benzene second of polyoxyethylene Alkenyl phenyl ether, and sulfonate is preferably selected from and contracted by naphthalene sulfonate and its formaldehyde condensation products, sulfocarbolate and its formaldehyde At least one of group of compound and lignosulfonates composition.
Polyoxyethylene alkyl ether includes polyoxyethylene stearyl base ether and polyoxyethylene tridecyl ether.The more benzene second of polyoxyethylene Alkenyl phenyl ether includes polyoxyethylene tri-styryl base phenyl ether.Naphthalene sulfonate and its formaldehyde condensation products include the first of sodium naphthalene sulfonate Aldehyde condensate, sulfocarbolate and its formaldehyde condensation products include the formaldehyde condensation products of natrium phenolsulfonicum, and lignosulfonates include Sodium lignin sulfonate.Surfactant is commercially available, and for example commercially available polyoxyethylene tri-styryl base phenyl ether includes SORPOL5080 (is manufactured) by Toho Chemical Industry Co., Ltd. (JP) Tokyo-To, Japan, and the formaldehyde condensation products of commercially available sodium naphthalene sulfonate include NEWKALGEN PS-P (Zhu Ben's Oil Corporation).
As it is used herein, powder surfactant is preferably used, and it is preferably used with wherein size The surfactant for the size distribution that content for more than 100 μm of particle is less than 2%." live on surface as used herein Property agent size distribution " mean the size distribution that is measured using sieve method, and as used herein " there is wherein size to be The content of more than 100 μm of particle is less than 2% size distribution " represent the amount that remains on 100 μm of hole sizers relative to total amount Weight ratio be less than 2%.The size distribution of surfactant can pass through following acquisition：10g surfactants are placed on 100 μm of hole sizers (are defined by Japanese Industrial Standards (JIS) Z8801-1 and its framework have 200mm diameter and 45mm depth Testing sieve) on, with screening plant such as ro-tap shaking machines by surfactant sieve 10 minutes, afterwards weigh remain on sieve Surfactant weight, and according to below equation calculate size distribution.
The amount (%)=weight (g) of the surfactant remained on sieve/remained on sieve is initially placed on sieve Weight (g) × 100 of surfactant
The content of surfactant in this rice paddy seed generally in 0.002wt% to 6wt%, preferably 0.005wt% extremely 2wt%, more preferably 0.01wt% are in the range of 2wt%.
Coatings can include at least one (hereinafter, being referred to as " this inorganic compound ") selected from (A) group.This is inorganic Clay in compound includes pyrophyllite and kaolin.In addition, this inorganic compound is preferably selected from by clay and calcium carbonate At least one of group of composition, especially, calcium carbonate are preferable due to the well attached ability with rice paddy seed.
As it is used herein, this powdered inorganic compound is preferably used, and its particle mean size is typically 200 Below μm, preferably less than 150 μm.The particle mean size of this as used herein inorganic compound represents to use laser diffraction/scattering The granularity that type particle size distribution analysis instrument determines, it is defined to correspond to the grain of 50% accumulation in the frequency disribution based on volume Degree.The particle mean size of this inorganic compound, which can use, to be distributed to the particle of this inorganic compound in water and then utilizes Mastersizer 2000 (being manufactured by Malvern Instr Ltd.) surveys as laser diffraction/scatter-type particle size distribution analysis instrument The method (that is, wet type measuring method) of amount determines.
This inorganic compound is used as when using the two or more inorganic compounds selected from (A) group with different particle mean sizes When, coatings are changed into finer and close coatings.Two or more inorganic compounds with different particle mean sizes can be it is identical or Different.
When coatings include this inorganic compound, its content in this rice paddy seed generally in 0.5wt% extremely In the range of 80wt%, preferably 1wt% are to 70wt%, more preferably 5wt% to 50wt%.
Coatings can include pesticide activity component.The example of pesticide activity component includes active insecticidal components, antifungal Active component, herbicidal active component and plant growth regulating activity composition.
The example of active insecticidal components includes clothianidin (clothianidin), imidacloprid (imidacloprid) and thiophene worm Piperazine (thiamethoxam).
The example of Fungicidal active ingredient includes isotianil (isotianil) and furametpyr (furametpyr).
The example of herbicidal active component includes imidazoles sulphur grand (imazosulfuron) and bromobutide (bromobutide)。
The example of plant growth regulating activity composition includes uniconazole P P (uniconazole P).
As used herein powdered pesticidal active composition is preferably used, and the powdered pesticidal active composition can Optionally to be milled with this inorganic compound by grinding mill such as dry mill to mix, for use as powdered pesticidal.Powdered agriculture The particle mean size of medicine is typically less than 200 μm, preferably less than 150 μm.The particle mean size of as used herein powdered pesticidal Mean the granularity determined with laser diffraction/scatter-type particle size distribution analysis instrument, it is defined to correspond in the frequency based on volume The granularity of 50% accumulation in distribution.When powdered pesticidal mixes with this inorganic compound, the particle mean size of powdered pesticidal Mean the particle mean size of mixture.The particle mean size of powdered pesticidal can use and the particle of powdered pesticidal is distributed in water Then it is used as laser diffraction/scatter-type size distribution by the use of Mastersizer 2000 (being manufactured by Malvern Instr Ltd.) The method (that is, wet type measuring method) of analyzer measurement determines.
When coatings include pesticide activity component, its content in this rice paddy seed generally in 0.001wt% extremely In the range of 3wt%, preferably 0.005wt% are to 2wt%, more preferably 0.01wt% to 2wt%.
Coatings can include colouring agent.The example of colouring agent includes pigment, pigment (dye) and dyestuff (dye stuff), And especially, pigment is preferable.Pigment is preferably red or blue pigment, such as ultramarine blue Nubix G-58 (blue face Material, is manufactured by nubiola Inc.) and TODACOLOR-300R (red pigment, being manufactured by Toda Kogyo Corp.).
The composition for being used for preparing this rice paddy seed can be respectively used, or whole or at least two can be used in mixed way Composition.There is the kit (hereinafter, being referred to as " this kit ") of the present invention this PVA, zinc oxide, bentonite and surface to live Property agent, it may be accommodated in a container or may be accommodated in two or more container.That is, this kit can With including one or more containers.When this kit includes two or more container, each container can include it is different into Point.In addition, this kit can include other compositions, such as iron oxide, this inorganic compound and pesticide activity component (below In, be referred to as " composition α ").
This rice paddy seed can include this PVA, zinc oxide, bentonite and surfactant by being formed on rice paddy seed And prepared by coatings (hereinafter, be referred to as " this coatings 1 ") optionally comprising iron oxide or this inorganic compound, or Person forms comprising this PVA, zinc oxide and bentonite on rice paddy seed and optionally includes iron oxide or this inorganic compound Layer (hereinafter, be referred to as " this coatings 2 ") then surfactant is maintained on the surface of this coatings 2 to prepare.
This coatings 1 by carry out it is mobile and add while roll rice paddy seed this PVA, zinc oxide, bentonite and Surfactant and optionally iron oxide or this inorganic compound are so that the step of they are attached to rice paddy seed is formed.This bag Clothing layer 2 is by carrying out adding this PVA, zinc oxide and bentonite while moving and rolling rice paddy seed and optionally adding oxygen Change iron or this inorganic compound so that the step of they are attached to rice paddy seed is formed.As for moving and rolling rice seed The device of son, the machine such as seed-coating machine commonly used in iron coating can be used.This PVA, zinc oxide, swelling can respectively be used Soil and surfactant and optional iron oxide or this inorganic compound, or can be used in mixed way whole or at least two into Point.When being used in mixed way whole compositions, using including this PVA, zinc oxide, bentonite and surfactant and optionally iron oxide Or the powdered composition of this inorganic compound.When being used in mixed way at least two composition, for example, using including this PVA, oxygen Change zinc and bentonite and the powdered composition of optional iron oxide or this inorganic compound, and surfactant.In addition, work as During using composition α, composition α can be used alone, or can be added to comprising this PVA, zinc oxide and bentonite and optionally Used in the powdered composition of iron oxide or this inorganic compound.
A kind of use is described below comprising this PVA, zinc oxide and bentonitic powdered composition (hereinafter, to be referred to as " powdered composition Z ") and surfactant form this coatings 2, surfactant is kept side in its surface Method.
Powdered composition Z and water are added to form this bag on rice paddy seed while moving and rolling rice paddy seed Clothing layer 2.This PVA allows by the way that zinc oxide and bentonite are attached into rice paddy seed as binding agent.The one of this rice paddy seed Individual preferred embodiment is surfactant is maintained at the embodiment at least on its surface, and makes surfactant Keep on a surface by forming this coatings 2 on rice paddy seed, then keep mobile and roll rice paddy seed Surfactant is added while state so that surfactant is attached to the outside of this coatings 2 to realize.
When using this inorganic compound, this inorganic compound and powdered composition Z can be mixed in preceding method Addition, or prepare the powdered composition comprising this PVA, bentonite and this inorganic compound and (hereinafter, be referred to as " powder Shape composition Y ") and powdered composition Z, then add compound respectively in preceding method.
When adding respectively, there is the first layer comprising this inorganic compound and be coated on the outside of first layer include oxygen Then this rice paddy seed for changing the second layer of zinc can add powdered composition Z and come by adding powdered composition Y first Prepare.Specifically, it is inorganization comprising this to be formed that powdered composition Y and water are added while moving and rolling rice paddy seed Compound, this PVA and bentonitic first layer, and add powder in the case where keeping state that is mobile and rolling rice paddy seed Shape composition Z and water include zinc oxide, this PVA and the bentonitic second layer to be formed in the outside of first layer.
(" this composition hereinafter, is sometimes referred to as comprising this PVA, zinc oxide and bentonitic powdered composition (1) ") it is suitable as the powdered composition for being coated to rice paddy seed.The particle mean size of this composition (1) is 0.01 To 150 μm, preferably 1 to 150 μm, more preferably 5 to 150 μm.The average grain of as used herein this composition (1) The granularity that expression is determined with laser diffraction/scatter-type particle size distribution analysis instrument is spent, it is defined to correspond in the frequency based on volume The granularity of 50% accumulation in number distribution.The particle mean size of this composition (1), which can use, disperses the particle of this composition (1) Laser diffraction/scatter-type grain is used as into water and then by the use of Mastersizer 2000 (being manufactured by Malvern Instr Ltd.) The method (that is, wet type measuring method) of degree Distribution Analyzer measurement determines.
The apparent relative density of this composition (1) is for example in 0.30 to 2.50g/mL and 0.30 to 2.0g/mL, preferably 0.50 To 2.0g/mL, in the range of more preferably 0.60 to 1.7g/mL.The apparent relative density of this composition (1) is preferably high, Because prevented in the preparation of coating rice paddy seed scattered.The apparent relative density of as used herein this composition (1) (physical test, Showa 35 year 2 month agricultural on the 3rd save bulletin the 71st to test procedure specified in Official Analytical's method according to agricultural chemicals Number (physical test, Notice No.71 of Ministry of Agriculture and Forestry on February 3, Showa 35)) method determine.This method includes having 8 sieve the polished standard screen (Japanese industry marks The testing sieve of the depth of diameter and 45mm of its framework with 200mm specified in the Z8801-1 of accurate (JIS)) be placed on On the hydrostatic column with 100mL capacity being made of metal of 50mm internal diameters, sample is put into sieve, and with brush lightly Sweep the step of stroking with filling container.Then, wipe excessive sample off using slide immediately, then weigh sample to determine content The weight of thing simultaneously calculates apparent relative density according to below equation.The distance between top edge of sieve and container is set as 20cm.
Weight/100 of apparent relative density (g/mL)=content
This composition (1) can include this inorganic compound.When this composition (1) includes this inorganic compound, this group The weight ratio of zinc oxide and this inorganic compound in compound (1) is generally 1: 1000 to 1000：1st, preferably 1: 1000 to 100: 1st, in the range of more preferably 1: 200 to 10: 1.In view of the influence to plant growth and environment, 1: 200 to 1: 3 scope is excellent Choosing.
A kind of use is described below comprising this PVA, zinc oxide, iron oxide and bentonitic powdered composition (below In, be referred to as " powdered composition T ") and surfactant form this coatings 2, surfactant is maintained at its surface On method.
Powdered composition T and water are added to form this bag on rice paddy seed while moving and rolling rice paddy seed Clothing layer 2.This PVA allows zinc oxide, iron oxide and bentonite are attached into rice paddy seed by being used as binding agent.This rice paddy seed A preferred embodiment be that wherein surfactant is maintained at the embodiment at least on its surface, and make surface-active Agent is kept on the surface by forming this coatings 2 on rice paddy seed, is then being kept mobile and is being rolled rice paddy seed State in the case of add surfactant so that surfactant is attached to the outside of this coatings 2 to realize.
When respectively using iron oxide and zinc oxide to form this coatings, there is first layer and cladding comprising iron oxide Can then it be added by adding this PVA first in this rice paddy seed of the second layer comprising zinc oxide in the outside of first layer It is prepared by zinc oxide.Specifically, it is mobile and while roll rice paddy seed composition of the addition comprising iron oxide and this PVA and Water includes the first layer of iron oxide and this PVA to be formed, and in the case where keeping mobile and rolling the state of rice paddy seed Composition of the addition comprising zinc oxide and this PVA and water include the second of zinc oxide and this PVA to be formed in the outside of first layer Layer.
(" this group hereinafter, is sometimes referred to as comprising this PVA, zinc oxide, iron oxide and bentonitic powdered composition Compound (2) ") it is suitable as powdered composition for being coated to rice paddy seed.The particle mean size of this composition (2) exists In the range of 0.01 to 150 μm, preferably 1 to 150 μm, more preferably 1 to 60 μm.As used herein this composition (2) is put down Equal granularity represents the granularity determined with laser diffraction/scatter-type particle size distribution analysis instrument, and it is defined to correspond to based on volume Frequency disribution in 50% accumulation granularity.The particle mean size of this composition (2) can be used the particle of this composition (2) It is distributed in water and then is used as laser diffraction/scattering by the use of Mastersizer 2000 (being manufactured by Malvern Instr Ltd.) The method (that is, wet type measuring method) of type particle size distribution analysis instrument measurement determines.
The apparent relative density of this composition (2) is for example in 0.30 to 2.50g/mL and 0.30 to 2.0g/mL, preferably 0.30 To 2.20g/mL, in the range of more preferably 0.50 to 2.20g/mL.The apparent relative density of this composition (2) is preferably height , because being prevented in the preparation of coating rice paddy seed scattered.This composition (2) is apparent relatively close as used herein (physical test, Showa 35 year 2 month agricultural on the 3rd save bulletin the to test procedure to degree specified in Official Analytical's method according to agricultural chemicals No. 71 (physical test, Notice No.71 of Ministry of Agriculture and Forestry on February 3, Showa 35)) method determine.This method includes having 8 sieve the polished standard screen (Japanese industry marks The testing sieve of the depth of diameter and 45mm of its framework with 200mm specified in the Z8801-1 of accurate (JIS)) be placed on On the hydrostatic column with 100mL capacity being made of metal of 50mm internal diameters, sample is put into sieve, and with brush lightly Sweep the step of stroking with filling container.Then, wipe excessive sample off using slide immediately, then weigh sample to determine content The weight of thing simultaneously calculates apparent relative density according to below equation.The distance between top edge of sieve and container is set as 20cm.
Weight/100 of apparent relative density (g/mL)=content
The weight ratio of zinc oxide and iron oxide in this composition (2) is generally 1: 1000 to 1000: 1, preferably 1: 1000 To 100: 1, more preferably 1: 200 to 10: 1.In view of the influence to plant growth and environment, 1: 200 to 1: 3 model It is preferable to enclose.
Some examples of this composition (1) are described below.In the following example, % is represented relative to this composition (1) Wt%.
It is a kind of to include zinc oxide, with 500 to 3000 degree of polymerization and in the range of 78.5mol% to 97.5mol% Polyvinyl alcohol, bentonite and the powdered composition selected from least one of the group being made up of clay and calcium carbonate of saponification degree Thing, wherein particle mean size are 0.01 to 150 μm, and apparent relative density is 0.30 to 2.0g/mL；
It is a kind of to include zinc oxide, with 1000 to 2500 degree of polymerization and in the range of 86.5mol% to 97.5mol% Polyvinyl alcohol, bentonite and the powdered composition selected from least one of the group being made up of clay and calcium carbonate of saponification degree Thing, wherein particle mean size are 1 to 150 μm, and apparent relative density is 0.50 to 2.0g/mL；
It is a kind of to include zinc oxide, with 1500 to 2500 degree of polymerization and in the range of 86.5mol% to 97.5mol% Polyvinyl alcohol, bentonite and the powdered composition selected from least one of the group being made up of clay and calcium carbonate of saponification degree Thing, wherein particle mean size are 5 to 150 μm, and apparent relative density is 0.60 to 1.7g/mL；
It is a kind of to include zinc oxide, with 500 to 3000 degree of polymerization and in the range of 78.5mol% to 97.5mol% Polyvinyl alcohol, bentonite and the powdered composition selected from least one of the group being made up of pyrophyllite and calcium carbonate of saponification degree Thing, wherein particle mean size are 0.01 to 150 μm, and apparent relative density is 0.30 to 2.0g/mL；
It is a kind of to include zinc oxide, with 1000 to 2500 degree of polymerization and in the range of 86.5mol% to 97.5mol% Polyvinyl alcohol, bentonite and the powdered composition selected from least one of the group being made up of pyrophyllite and calcium carbonate of saponification degree Thing, wherein particle mean size are 1 to 150 μm, and apparent relative density is 0.50 to 2.0g/mL；
It is a kind of to include zinc oxide, with 1500 to 2500 degree of polymerization and in the range of 86.5mol% to 97.5mol% Polyvinyl alcohol, bentonite and the powdered composition selected from least one of the group being made up of pyrophyllite and calcium carbonate of saponification degree Thing, wherein particle mean size are 5 to 150 μm, and apparent relative density is 0.60 to 1.7g/mL；
It is a kind of to include zinc oxide, with 1500 to 2500 degree of polymerization and in the range of 86.5mol% to 97.5mol% The powdered composition of the polyvinyl alcohol of saponification degree, bentonite and calcium carbonate, wherein particle mean size is 5 to 150 μm, and apparent Relative density is 0.60 to 1.7g/mL；
It is a kind of include 0.5% to 60% zinc oxide, 0.5% to 3% with 1500 to 2500 the degree of polymerization and The polyvinyl alcohol of saponification degree in the range of 86.5mol% to 97.5mol%, 1% to 5% bentonite and 32% to 98% carbon The powdered composition of sour calcium, wherein particle mean size are 5 to 50 μm, and apparent relative density is 0.80 to 1.5g/mL；
It is a kind of include 2% to 50% zinc oxide, 0.5% to 3% with 2000 the degree of polymerization and in 87.0mol% extremely The powder of the polyvinyl alcohol of saponification degree in the range of 89.0mol%, 1% to 5% bentonite and 42% to 86.5% calcium carbonate Last shape composition, wherein particle mean size are 15 to 45 μm, and apparent relative density is 1.0 to 1.3g/mL；
It is a kind of include 48.3% zinc oxide, 1.0% with 2000 the degree of polymerization and in 87.0mol% extremely The powdered composition of the polyvinyl alcohol of saponification degree in the range of 89.0mol%, 2.4% bentonite and 48.3% calcium carbonate Thing, wherein particle mean size are 16.4 μm；
It is a kind of include 24.1% zinc oxide, 1.0% with 2000 the degree of polymerization and in 87.0mol% extremely The powdered composition of the polyvinyl alcohol of saponification degree in the range of 89.0mol%, 2.4% bentonite and 72.5% calcium carbonate Thing, wherein particle mean size are 24.6 μm；
It is a kind of include 4.8% zinc oxide, 1.0% with 2000 the degree of polymerization and in 87.0mol% to 89.0mol% In the range of the polyvinyl alcohol of saponification degree, the powdered composition of 2.4% bentonite and 91.8% calcium carbonate, wherein average Granularity is 42.7 μm, and apparent relative density is 1.2g/mL；
It is a kind of to include zinc oxide, with 1500 to 2500 degree of polymerization and in the range of 86.5mol% to 97.5mol% The powdered composition of the polyvinyl alcohol of saponification degree, bentonite and clay, wherein particle mean size is 5 to 150 μm, and apparent phase It is 0.60 to 1.7g/mL to density；
It is a kind of to include zinc oxide, with 1500 to 2500 degree of polymerization and in the range of 86.5mol% to 97.5mol% The powdered composition of the polyvinyl alcohol of saponification degree, bentonite and pyrophyllite, wherein particle mean size is 5 to 150 μm, and apparent Relative density is 0.60 to 1.7g/mL；
It is a kind of include 1% to 15% zinc oxide, 0.5% to 3% with 2000 the degree of polymerization and in 87.0mol% extremely The powder of the polyvinyl alcohol of saponification degree in the range of 89.0mol%, 1% to 5% bentonite and 77% to 97.5% pyrophyllite Last shape composition, wherein particle mean size are 1 to 30 μm, and apparent relative density is 0.60 to 1.2g/mL；With
It is a kind of include 9.6% zinc oxide, 1.0% with 2000 the degree of polymerization and in 87.0mol% to 89.0mol% In the range of the polyvinyl alcohol of saponification degree, the powdered composition of 2.4% bentonite and 87% pyrophyllite, wherein averagely grain Degree is 22.5 μm.
Some examples of this composition (2) are described below.In the following example, % is represented relative to this composition (2) Wt%.
It is a kind of to include with 500 to 3000 degree of polymerization and saponification degree in the range of 78.5mol% to 97.5mol% Polyvinyl alcohol, zinc oxide, iron oxide and bentonitic powdered composition, wherein particle mean size are 1 to 60 μm, and apparent phase It is 0.50 to 2.20g/mL to density；
It is a kind of include 0.5% to 3% with 500 to 3000 the degree of polymerization and in 78.5mol% to 97.5mol% scopes The polyvinyl alcohol of interior saponification degree, 1% to 60% zinc oxide, 32% to 97.5% iron oxide and 1% to 5% bentonite Powdered composition, wherein particle mean size is 5 to 60 μm, and apparent relative density is 1.00 to 2.20g/mL；
It is a kind of include 0.5% to 3% with 1000 to 2500 the degree of polymerization and in 86.5mol% to 97.5mol% models Polyvinyl alcohol, 3% to 50% zinc oxide, 42% to 95.5% iron oxide and 1% to 5% swelling of saponification degree in enclosing The powdered composition of soil, wherein particle mean size is 15 to 50 μm, and apparent relative density is 1.20 to 2.20g/mL；
It is a kind of include 1.0% with 2000 the degree of polymerization and the saponification degree in the range of 87.0mol% to 89.0mol% Polyvinyl alcohol, 48.3% zinc oxide, 48.3% iron oxide and 2.4% bentonitic powdered composition, wherein flat Equal granularity is 11.6 μm；
It is a kind of include 2.0% with 2000 the degree of polymerization and the saponification degree in the range of 87.0mol% to 89.0mol% Polyvinyl alcohol, 9.5% zinc oxide, 86.1% iron oxide and 2.4% bentonitic powdered composition, wherein average Granularity is 11.2 μm, and apparent relative density is 1.77g/mL；With
It is a kind of to include 1.0% with 2000 degree of polymerization and saponification degree in the range of 87.0mol% to 89.0mol% Polyvinyl alcohol, 4.8% zinc oxide, 91.8% iron oxide and 2.4% bentonitic powdered composition, wherein particle mean size are 20.2 μm, and apparent relative density is 2.01g/mL.
A kind of method (hereinafter, being referred to as " this preparation method ") for being used to prepare this rice paddy seed is described.In this preparation In method, rice paddy seed is generally soaked before use.Immersion can be accomplished as follows.First, solid carbon dioxide rice is put into bag such as In rice paddy seed bag, and soaked in water.Preferably seed is soaked three to four days at 15 to 20 DEG C in water has to produce The coating rice paddy seed of bud rate occurred frequently.Rice paddy seed is reclaimed from water, then generally stands or Rotary drying is to remove surface On excess water.
First, describe a kind of for preparing with the coating for including this PVA, zinc oxide, bentonite and this inorganic compound The method of the coating rice paddy seed of layer, wherein surfactant, which is maintained on the surface of the layer, (hereinafter, is referred to as " this system Preparation Method 1 ").This preparation method 1 comprises the following steps.
(1) this PVA, zinc oxide, bentonite, this inorganic compound and water are added while moving and rolling rice paddy seed The step of to form the coatings comprising this PVA, zinc oxide, bentonite and this inorganic compound, (2) are in movement and roll in step Suddenly surfactant is added while the rice paddy seed obtained in (1) so that surfactant is maintained at by step (1) formation Coatings outside the step of, and the step of (3) dry the rice paddy seed obtained in the step (2).
For this preparation method 1, first, carry out addition while moving and rolling the rice paddy seed of immersion and include this PVA, zinc oxide, bentonite and this inorganic compound powdered composition (hereinafter, be referred to as " powdered composition X ") and Water (hereinafter, is referred to as " step to be formed the step of the coatings for including this PVA, zinc oxide, bentonite and this inorganic compound Rapid 1 ").In step 1, water can be added first, then can add powdered composition X, and order can invert.Separately Outside, water and powdered composition X can be added simultaneously.Water and powdered composition X are added, while continuous contact is mobile and rolls Rice paddy seed under state.Adding the method for water can include being added dropwise and spraying.After addition water and powdered composition X, lead to Cross to be attached to zinc oxide, bentonite and this inorganic compound using this PVA as adhesive and be maintained at shape that is mobile and rolling The rice paddy seed of state.
Relative to the solid carbon dioxide rice of 100 parts by weight, the total addition level of the zinc oxide in this preparation method 1 generally exists In the range of 0.01 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight.In view of being given birth to plant Long and environment influence, preferred scope is 0.1 to 25 parts by weight.Relative to the solid carbon dioxide rice of 100 parts by weight, this inorganic chemical The total addition level of thing is generally in the range of 1 to 200 parts by weight, preferably 1 to 150 parts by weight, more preferably 1 to 100 parts by weight.Phase For the solid carbon dioxide rice of 100 parts by weight, powdered composition X total addition level generally 5 to 500 parts by weight, preferably 5 to In the range of 300 parts by weight, more preferably 10 to 200 parts by weight.Relative to the solid carbon dioxide rice of 100 parts by weight, this PVA's always adds Dosage is generally in the range of 0.025 to 25 parts by weight, preferably 0.025 to 8 parts by weight, more preferably 0.05 to 4 parts by weight.This PVA and powdered composition X weight ratio is generally in the range of 1: 200 to 1: 10, preferably 1: 150 to 1: 20.
In step 1, uniform coatings can be by separating and adding powdered composition X and repeat step 1 To be formed.In this case, powdered composition X single addition is typically about the 1 of powdered composition X total addition level To 1/10, preferably from about 1/2 to 1/5.The total addition level of water is typically about the 1/2 to 1/ of powdered composition X total addition level 100, preferably from about 1/3 to 1/10.
In step 1, when powdered composition X is attached to the inwall of device, powdered group is scraped by using scraper etc. Compound X can make the powdered composition X added close to whole amount be attached to rice paddy seed.
After step 1 is carried out, carry out adding surface-active while moving and rolling the seed obtained in step 1 Agent is so that the step of surfactant is maintained at the outside of the coatings formed by step 1 (hereinafter, is referred to as " step 2”).For step 2, after step 1 is carried out, keep mobile and add surface-active while rolling the state of rice paddy seed Agent can make surfactant be maintained at the outsides of the coatings comprising this PVA, zinc oxide, bentonite and this inorganic compound.
This seed is obtained after step 2 is carried out, the step of by the way that the seed obtained in step 2 is dried.Specifically Ground, after step 2 is carried out, rice paddy seed is reclaimed from device, is placed in seedling box so that rice paddy seed is sparsely sprawled Wherein, and its drying is made.Rice paddy seed, which is generally dried to less than 20% (relative to the wt% of coating rice paddy seed) water, to be contained Amount.The water content of as used herein coating rice paddy seed is represented by the way that 10g samples are dried into one hour at 105 DEG C, used The value of infrared moisture measuring meter measurement.Infrared moisture measuring meter may be used as by the Kett Electric Laboratory FD-610 manufactured. Further, it is possible to use straw mattress or plastic plate replace seedling box sparsely to be sprawled thereon and make drying.
It is used to prepare the bag with this PVA, zinc oxide, bentonite and this inorganic compound is included next, description is a kind of The method of the coating rice paddy seed of clothing layer, wherein coatings have the first layer comprising this inorganic compound and are coated on first layer Outside the second layer for including zinc oxide, and surfactant keep in its surface (hereinafter, be referred to as " this preparation Method 2 ").This preparation method 2 comprises the following steps.
(1) (I) adds this PVA, bentonite, this inorganic compound and water with shape while moving and rolling rice paddy seed The step of into coatings comprising this PVA, bentonite and this inorganic compound, and (II) mobile and roll in step (I) This PVA, zinc oxide, bentonite and water are added while the seed of acquisition to be formed in the outside of the layer formed by step (I) The step of comprising this PVA, zinc oxide and bentonitic coatings, (2) are in movement and roll the seed of acquisition in step (1) Surfactant is added simultaneously so that the step of surfactant is maintained at the outside of the layer formed by step (1), and (3) are dry It is dry obtain in the step (2) seed the step of.
For this preparation method 2, first, carry out addition while moving and rolling the rice paddy seed of immersion and include this PVA, bentonite and this inorganic compound powdered composition (hereinafter, be referred to as " powdered composition W ") and water are with shape Into (hereinafter, be referred to as " step I ") the step of coatings comprising this PVA, bentonite and this inorganic compound.Step I can To be carried out according to the process similar to the step 1 in this preparation method 1, except replacing powdered group using powdered composition W Outside compound X.After step I is carried out, carry out addition while moving and rolling the seed obtained in step I and include this PVA, zinc oxide and bentonitic powdered composition (hereinafter, be referred to as " powdered composition V ") and water are to walk passing through The outside for the layer that rapid I is formed is formed (hereinafter, is referred to as " step comprising the step of this PVA, zinc oxide and bentonitic coatings Rapid II ").Step II can be carried out according to the process similar to step I, except replacing powdered group using powdered composition V Outside compound W.
Relative to the solid carbon dioxide rice of 100 parts by weight, the total addition level of the iron oxide in this preparation method 2 generally exists In the range of 0.01 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight.In view of being given birth to plant Long and environment influence, the scope of 0.1 to 25 parts by weight is preferable.Relative to the solid carbon dioxide rice of 100 parts by weight, this is inorganic The total addition level of compound is generally in 1 to 200 parts by weight, preferably 1 to 150 parts by weight, the scope of more preferably 1 to 100 parts by weight It is interior.Relative to the solid carbon dioxide rice of 100 parts by weight, powdered composition V total addition level is generally in 0.1 to 250 parts by weight, excellent In the range of selecting 1 to 120 parts by weight, more preferably 1 to 60 parts by weight.Relative to the solid carbon dioxide rice of 100 parts by weight, powdered group Compound W total addition level is generally in 5 to 250 parts by weight, preferably 5 to 200 parts by weight, the scope of more preferably 5 to 150 parts by weight It is interior.Relative to the solid carbon dioxide rice of 100 parts by weight, this PVA total addition level is generally in 0.025 to 25 parts by weight, preferably 0.025 To 8 parts by weight, more preferably 0.05 to 4 parts by weight.This PVA and powdered composition V weight ratio is generally 1: 200 To 1: 10, preferably 1: 150 to 1: 20.This PVA and powdered composition W weight than generally 1: 200 to 1: 10, In the range of it is preferred that 1: 1500 to 1: 20.
After step II is carried out, the step 2 or later step in this preparation method 1 are similarly carried out.
Next, a kind of method for being used to prepare the coating rice paddy seed with this coatings 2 of description, wherein surface-active Agent is maintained on the surface of this layer (hereinafter, be referred to as " this preparation method 3 ").This preparation method 3 comprises the following steps.
(1) this PVA, zinc oxide, iron oxide, bentonite and water are added to be formed while moving and rolling rice paddy seed Surfactant is added in the step of this coatings 2, (2) while moving and rolling the rice paddy seed obtained in step (1) So that surfactant is maintained at the step of outside of the coatings formed by step (1), and (3) are dried in step (2) The step of rice paddy seed of acquisition.
For this preparation method 3, first, carry out adding powdered group while moving and rolling the rice paddy seed of immersion The step of compound Z and water are to form this coatings 2 (hereinafter, is referred to as " step 1 ' ").Step 1 ' in, can add first Water, powdered composition T then can be added, and order can invert.Furthermore it is possible to water and powdered composition are added simultaneously Thing T.Water and powdered composition T are added, while continuous contact is in the mobile rice paddy seed with rolling condition.Add water Method can include being added dropwise and spraying.After addition water and powdered composition T, adhesive is used as by oxygen by using this PVA Change zinc, iron oxide and bentonite and be attached to the rice paddy seed for being maintained at state that is mobile and rolling.
Relative to the solid carbon dioxide rice of 100 parts by weight, the total addition level of the zinc oxide in this preparation method 3 generally exists In the range of 0.01 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight.In view of being given birth to plant Long and environment influence, preferred scope is 0.1 to 25 parts by weight.Relative to the solid carbon dioxide rice of 100 parts by weight, iron oxide it is total Addition is generally in the range of 1 to 200 parts by weight, preferably 1 to 150 parts by weight, more preferably 1 to 100 parts by weight.Relative to The solid carbon dioxide rice of 100 parts by weight, powdered composition T total addition level is generally in 5 to 500 parts by weight, preferably 5 to 300 weights In the range of amount part, more preferably 10 to 200 parts by weight.Relative to the solid carbon dioxide rice of 100 parts by weight, this PVA total addition level Generally in the range of 0.025 to 25 parts by weight, preferably 0.025 to 8 parts by weight, more preferably 0.05 to 4 parts by weight.This PVA with Powdered composition T weight ratio is generally in the range of 1: 200 to 1: 10, preferably 1: 150 to 1: 20.
Step 1 ' in, uniform coatings can be by separating and adding powdered composition T and repeat step 1 ' forms.In this case, powdered composition T single addition is typically powdered composition T total addition level About 1 to 1/10, preferably from about 1/2 to 1/5.The total addition level of water is typically about the 1/2 to 1/ of powdered composition T total addition level 100, preferably from about 1/3 to 1/10.
Step 1 ' in, when powdered composition T is attached to the inwall of device, powdered group is scraped by using scraper etc. Compound T can make the powdered composition T added close to whole amount be attached to rice paddy seed.
Step 1 ' afterwards is being carried out, is being carried out mobile and add surface while roll in the seed of step 1 ' middle acquisition and live Property agent (hereinafter, be referred to as so that the step of surfactant is maintained at the outside by this coatings 2 of step 1 ' formation " step 2 ' ").For step 2 ', carrying out step 1 ' afterwards, keeping mobile and added while rolling the state of rice paddy seed Surfactant allows the outside for making surfactant be maintained at this coatings 2.
Step 2 ' afterwards is being carried out, this rice seed is obtained in the step of seed of step 2 ' middle acquisition by being dried Son.Specifically, step 2 ' afterwards is being carried out, rice paddy seed is reclaimed from device, is placed in seedling box so that rice paddy seed is dilute Sprawl wherein thinly, and make its drying.Rice paddy seed is generally dried to less than 20% (relative to coating rice paddy seed Wt% water content).The water content of as used herein coating rice paddy seed represent by by 10g samples in 105 DEG C of dryings One hour, the value measured using infrared moisture measuring meter.It may be used as by the Kett Electric Laboratory FD-610 manufactured Infrared moisture measuring meter.Further, it is possible to use straw mattress or plastic plate replace seedling box sparsely to be sprawled thereon and make drying.
Next, a kind of method for being used to prepare the coating rice paddy seed with this coatings 2 of description, wherein this coatings 2 have the first layer comprising iron oxide and are coated on the second layer for including zinc oxide in the outside of first layer, and surface-active Agent is kept (hereinafter, be referred to as " this preparation method 4 ") in its surface.This preparation method 4 comprises the following steps.
(1 ') (i) adds this PVA, iron oxide, bentonite and water to form bag while moving and rolling rice paddy seed The step of containing this PVA, iron oxide and bentonitic coatings, and (ii) in movement and roll the seed obtained in step (i) While add this PVA, zinc oxide, bentonite and water with the outside of the layer formed by step (i) formed comprising this PVA, The step of zinc oxide and bentonitic coatings, (2 ') are added while moving and rolling the seed obtained in step (1 ') Surfactant is so that the step of surfactant is maintained at the outside of the layer formed by step (1 '), and (3 ') are dried in step Suddenly the step of seed obtained in (2 ').
For this preparation method 4, first, carry out addition while moving and rolling the rice paddy seed of immersion and include this PVA, iron oxide and bentonitic powdered composition (hereinafter, be referred to as " powdered composition S ") and water are included with being formed The step of this PVA, iron oxide and bentonitic coatings (hereinafter, be referred to as " step i ").Step i can according to this system Step 1 ' similar process in Preparation Method 4 is carried out, in addition to replacing powdered composition T using powdered composition S. After carrying out step i, carry out it is mobile and while roll the seed obtained in step i addition comprising this PVA, zinc oxide and Bentonitic powdered composition (hereinafter, be referred to as " powdered composition R ") and water are with the layer formed by step i The step of outside is formed comprising this PVA, zinc oxide and bentonitic coatings (hereinafter, be referred to as " step ii ").Step ii It can be carried out according to the process similar to step i, in addition to replacing powdered composition S using powdered composition R.
Relative to the solid carbon dioxide rice of 100 parts by weight, the total addition level of the zinc oxide in this preparation method 4 generally exists In the range of 0.01 to 200 parts by weight, preferably 0.1 to 100 parts by weight, more preferably 0.1 to 50 parts by weight.In view of being given birth to plant Long and environment influence, the scope of 0.1 to 25 parts by weight is preferable.Relative to the solid carbon dioxide rice of 100 parts by weight, iron oxide Total addition level generally in the range of 1 to 200 parts by weight, preferably 1 to 150 parts by weight, more preferably 1 to 100 parts by weight.Relatively In the solid carbon dioxide rice of 100 parts by weight, powdered composition S total addition level is generally in 5 to 250 parts by weight, preferably 5 to 150 In the range of parts by weight, more preferably 5 to 100 parts by weight.
Relative to the solid carbon dioxide rice of 100 parts by weight, powdered composition R total addition level is generally in 0.1 to 250 weight In the range of part, preferably 1 to 120 parts by weight, more preferably 1 to 60 parts by weight.Relative to the solid carbon dioxide rice of 100 parts by weight, sheet PVA total addition level generally 0.025 to 25 parts by weight, preferably 0.025 to 8 parts by weight, more preferably 0.05 to 4 parts by weight model In enclosing.This PVA and powdered composition S weight ratio is generally in the range of 1: 200 to 1: 10, preferably 1: 150 to 1: 20.This PVA and powdered composition R weight ratio is generally in the range of 1: 200 to 1: 10, preferably 1: 150 to 1: 20.
After step II is carried out, the step 2 ' or later step in this preparation method 3 are similarly carried out.
This rice paddy seed can be used for paddy and directly sow cultivation, and its method is by the way that this rice paddy seed is directly sowed Carried out to rice field.As used herein rice field represents any of submerged weir flow and draining rice field.Specifically, according to Minoru YAMAUCHI, " A manual for direct sowing of iron-coated rice on a flooded Paddy field 2010 (handbook 2010 of the rice of iron coating in the direct sowing of submerged weir flow) ", The National Agriculture and Food ResearchOrganization, Western Region Agricultural Research Center, the method described in March, 2010 are sowed.In which case it is possible to use it is coated for iron Direct seeder, as Tetsumakichan (is manufactured) by Kubota Corporation.Permitted with the sowing of this conventional method Perhaps good seedling is realized.After sowing, normal cultivation condition is kept to allow rice-cultivating.
Before planting, with sowing simultaneously or agricultural chemicals and fertilizer can be applied after sowing.Agricultural chemicals Including fungicide, insecticide and herbicide etc..
Embodiment
The present invention is more fully described by embodiment.
First, describe preparation example and compare preparation example.
In following preparation example and compare preparation example, unless otherwise indicated, otherwise the seed of hinohikari kinds is used as Rice paddy seed, and using with 42.7 μm of particle mean size and its α-Fe2O3Content be 78% iron oxide.Preparation side Method is in (about 20 DEG C) progress of room temperature.In addition, % represents wt%.
It is in addition, as follows in the trade name that preparation example and comparing uses in preparation example.
LPZINC-20：Zinc oxide, manufactured by Sakai Chemical Industry Co., Ltd.s, particle mean size：27.4 μm
Zinc oxide 3N5：Zinc oxide, manufactured by Kanto Kagaku K. K., particle mean size：7.7μm
The grade of zinc oxide second：Zinc oxide, manufactured by Nippon Chemical Ind, particle mean size：0.24μm
Calcium carbonate G-100：Calcium carbonate, by three fine powder Co., Ltd. manufactures altogether, particle mean size：46.0μm
Particle calcium carbonate：Calcium carbonate, manufactured by Yao Xian lime Co., Ltd., particle mean size：6.2μm
Pulvis DL clays：Pyrophyllite, as manufactured by Co., Ltd.'s victory Guanshan Mountain mining industry, particle mean size：30.3μm
Rutile powder：Titanium oxide, manufactured by KINSEI MATEC CO., LTD., particle mean size：14.6μm
Sun Zeolite MGF：Zeolite, manufactured by Sun Zeolite Industry Co., Ltd.s, particle mean size：116 μm
SHOKOZAN CLAY S：Pyrophyllite, as manufactured by Co., Ltd.'s victory Guanshan Mountain mining industry
Bentonite HOTAKA：Montmorillonite, manufactured by HOJUN Co., Ltd.s
DAE1K：Iron powder, manufactured by DOWA IP CREATION CO., LTD.
KTS-1：Calcined gypsum, Co., Ltd.'s manufacture is sold by lucky wild gypsum
KURARAY POVAL PVA-220S：Polyvinyl alcohol, saponification degree：87.0mol% to 89.0mol%, the degree of polymerization： 2000, by Kuraray, Co., Ltd. manufactures
GOHSENOL GM-14S：Polyvinyl alcohol, saponification degree：86.5mol% to 89.0mol%, the degree of polymerization：1000 to 1500, manufactured by the Nippon Synthetic Chemical Industry Co., Ltd
KURARAY POVAL PVA-205S：Polyvinyl alcohol, saponification degree：86.5mol% to 89.0mol%, the degree of polymerization： 500, by Kuraray, Co., Ltd. manufactures
KURARAY POVAL PVA-224S：Polyvinyl alcohol, saponification degree：87.0mol% to 89.0mol%, the degree of polymerization： 2400, by Kuraray, Co., Ltd. manufactures
SORPOL5080：Polyoxyethylene tri-styryl base phenyl ether, is manufactured by Toho Chemical Industry Co., Ltd. (JP) Tokyo-To, Japan
Preparation example 1
First, the simple seed pelleting machine for being coated to a small amount of rice paddy seed is manufactured.As shown in fig. 1, it is simple Easy seed pelleting machine passes through following manufacture：The cup 2 made of polyethylene with 500mL capacity is fixed to the top of axle 1, will It is inserted into the drive shaft of agitator 3 (Three-One Motor, being manufactured by Xin Dong science Co., Ltd.), and is fixed in Agitator 3 is allowd to be tilted with 45 degree of the elevation angle on support 4.
Then, by the 2g grade of zinc oxide second, 0.2g GOHSENOL GM-14S and 0.25g bentonite HOTAKA Mix to obtain powdered composition (1).
To the cup made of polyethylene with 200mL capacity, about 100mL water is poured into, and by 20g solid carbon dioxide seed rice Then son soaks 10 minutes added to wherein.Then rice paddy seed is reclaimed from water, and removes the mistake of attachment on the surface Measure water, then rice paddy seed is loaded into be fixed to manufactured simple seed pelleting machine by cup 2 made of polyethylene.Letter Easy seed pelleting machine is in agitator 3 to work in the range of 130 to 140rpm rotating speeds with mobile and roll rice paddy seed, then While being sprayed water with sprayer to rice paddy seed by the about a quarter of 2.45g powdered composition (1) (about 0.6g) added to rice paddy seed so that powdered composition (1) is attached to rice paddy seed.When powdered composition (1) is attached to When the inwall of cup made of polyethylene 2, scraping powdered composition (1) by using scraper adds the single close to whole amount Powdered composition (1) is attached to rice paddy seed.By similar process in triplicate, being made 2.45g powdered compositions (1) attached To rice paddy seed to form coatings.The total amount of the water used in coating is 2.4g.Then, by keeping simple kind attached bag Clothing machine is mobile while work and rolls 0.1g SORPOL5080 under conditions of rice paddy seed added to rice paddy seed with attached In the outside of coatings.The coating rice paddy seed reclaimed from simple seed pelleting machine is spread in stainless steel pallet so that It is not overlapping, and dries whole night to obtain the coating rice paddy seed (1) of the present invention.
Preparation example 2
By two grams of the grade of zinc oxide second, 0.1g KURARAY POVAL PVA-205S and 0.25g bentonite HOTAKA is mixed to obtain powdered composition (2).
Following methods are carried out according to the method described in preparation example 1.By using above 2.35g powdered composition (2) 2.45g powdered composition (1) is replaced, then the addition of four parts of said composition point makes 0.1g's to form coatings SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (2) of the present invention.The water used in coating it is total Amount is 0.5g.
Preparation example 3
Ten grams LPZINC-20,0.1g KURARAY POVAL PVA-224S and 0.25g bentonite HOTAKA are mixed Close to obtain powdered composition (3).
Following methods are carried out according to the method described in preparation example 1.By using above 10.35g powdered composition Thing (3) replaces 2.45g powdered composition (1), then the addition of four parts of said composition point makes 0.1g's to form coatings SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (3) of the present invention.The water used in coating it is total Amount is 1.4g.
Preparation example 4
By five grams zinc oxide 3N5,5g calcium carbonate G-100,0.1g KURARAY POVAL PVA-220S and 0.25g Bentonite HOTAKA mix to obtain powdered composition (4).The particle mean size of powdered composition (4) is 16.4 μm.
Following methods are carried out according to the method described in preparation example 1.By using above 10.35g powdered composition Thing (4) replaces 2.45g powdered composition (1), then the addition of four parts of said composition point makes 0.1g's to form coatings SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (4) of the present invention.The water used in coating it is total Amount is 2.8g.
Preparation example 5
By ten grams zinc oxide 3N5,10g particle calcium carbonate, 0.2g KURARAY POVAL PVA-220S and 0.5g bentonite HOTAKA is mixed to obtain powdered composition (5).The particle mean size of powdered composition (5) is 8.2 μm.
Following methods are carried out according to the method described in preparation example 1.By using above 20.7g powdered composition (5) 2.45g powdered composition (1) is replaced, then the addition of four parts of said composition point makes 0.1g's to form coatings SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (5) of the present invention.The water used in coating it is total Amount is 5.6g.
Preparation example 6
By 20 grams zinc oxide 3N5,20g particle calcium carbonate, 0.4g KURARAY POVAL PVA-220S and 1.0g bentonite HOTAKA is mixed to obtain powdered composition (6).The particle mean size of powdered composition (6) is 8.2 μm.
Following methods are carried out according to the method described in preparation example 1.By using 41.4g above powdered composition (6) 2.45g powdered composition (1) is replaced, then the addition of four parts of said composition point makes 0.1g's to form coatings SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (6) of the present invention.The water used in coating it is total Amount is 10.3g.
Preparation example 7
By one gram zinc oxide 3N5,9g rutile powder, 0.1g KURARAY POVAL PVA-220S and 0.25g bentonite HOTAKA is mixed to obtain powdered composition (7).The particle mean size of powdered composition (7) is 15.1 μ m。
Following methods are carried out according to the method described in preparation example 1.By using 10.35g above powdered composition Thing (7) replaces 2.45g powdered composition (1), then the addition of four parts of said composition point makes 0.1g's to form coatings SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (7) of the present invention.The water used in coating it is total Amount is 1.4g.
Preparation example 8
By one gram zinc oxide 3N5,9g Sun Zeolite MGF, 0,1g KURARAY POVAL PVA-220S and 0.25g bentonite HOTAKA is mixed to obtain powdered composition (8).The particle mean size of powdered composition (8) is 131.1 μm。
Following methods are carried out according to the method described in preparation example 1.By using 10.35g above powdered composition Thing (8) replaces 2.45g powdered composition (1), then the addition of four parts of said composition point makes 0.1g's to form coatings SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (8) of the present invention.The water used in coating it is total Amount is 4.2g.
Preparation example 9
By one gram zinc oxide 3N5,9g pulvis DL clays, 0.1g KURARAY POVAL PVA-220S and 0.25g bentonite HOTAKA is mixed to obtain powdered composition (9).The particle mean size of powdered composition (9) is 22.5 μ m。
Following methods are carried out according to the method described in preparation example 1.By using 10.35g above powdered composition Thing (9) replaces 2.45g powdered composition (1), then the addition of four parts of said composition point makes 0.1g's to form coatings SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (9) of the present invention.The water used in coating it is total Amount is 2.4g.
Preparation example 10
By 0. 1 grams of the grade of zinc oxide second, 9.9g calcium carbonate G-100,0.1g KURARAY POVAL PVA- 220S and 0.25g bentonite HOTAKA is mixed to obtain powdered composition (10).The average grain of powdered composition (10) Degree is 44.5 μm, and its apparent relative density is 1.2g/mL.
Following methods are carried out according to the method described in preparation example 1.By using above 10.35g powdered composition Thing (10) replaces 2.45g powdered composition (1), then the addition of four parts of said composition point makes 0.1g to form coatings SORPOL5080 be attached to the outsides of coatings to obtain the coating rice paddy seed (10) of the present invention.The water used in coating Total amount is 2.3g.
Preparation example 11
By (E) -1- (the chloro- 1,3-thiazoles -5- ylmethyls of 2-) -3- methyl -2- nitros of 70 points zero (70.0) parts by weight Guanidine (common name：Clothianidin) and 30.0 parts by weight SHOKOZAN CLAY S mixing, and milled with centrifugation grinding mill to obtain powder Last shape agricultural chemicals A.Wet type measurement side (is manufactured) by Malvern Instr Ltd. using using Mastersizer 2000 The particle mean size for the powdered agricultural chemicals A that method determines is 13.0 μm.By five grams zinc oxide 3N5,5g calcium carbonate G- 100th, 0.1g KURARAY POVAL PVA-220S, 0.25g bentonite HOTAKA and 0.086g powdered agrochemicals Product A is mixed to obtain powdered composition (11).
Following methods are carried out according to the method described in preparation example 1.By using above 10.436g powdered composition Thing (11) replaces 2.45g powdered composition (1), then the addition of four parts of said composition point makes 0.1g to form coatings SORPOL5080 be attached to the outsides of coatings to obtain the coating rice paddy seed (11) of the present invention.The water used in coating Total amount is 3.9g.
Preparation example 12
By five grams zinc oxide 3N5,5g calcium carbonate G-100,0.1g KURARAY POVAL PVA-220S, 0.25g Bentonite HOTAKA and 0.01g SORPOL5080 mix to obtain powdered composition (12).
Following methods are carried out according to the method described in preparation example 1.By using above 10.36g powdered composition Thing (12) replaces 2.45g powdered composition (1), and four parts of said composition point are added to form coatings and be derived from this The coating rice paddy seed (12) of invention.The total amount of the water used in coating is 2.3g.
Preparation example 13
By five grams of rutile powder, 0.1g KURARAY POVAL PVA-224S and 0.15g bentonite HOTAKA is mixed to obtain powdered composition (13-1).In addition, the KURARAY POVAL by 5g zinc oxide 3N5,0.1g PVA-224S and 0.15g bentonite HOTAKA is mixed to obtain powdered composition (13-2).
Following methods are carried out according to the method described in preparation example 1.Soak 20 grams of solid carbon dioxide rice, then with The about a quarter (about 1.3g) of 5.25g powdered composition (13-1) is added to rice seed while sprayer spray water Son is so that said composition is attached to rice paddy seed.When powdered composition (13-1) is attached to by made of polyethylene in cup 2 During wall, scraping powdered composition (13-1) by using scraper makes the single close to whole amount add powdered composition (13-1) It is attached to rice paddy seed.By similar process in triplicate, 5.25g powdered composition (13-1) is set to be attached to rice paddy seed To form the first coatings (hereinafter, being referred to as " first layer ") comprising rutile powder.The water used in coating it is total Amount is 1.3g.
Then, under conditions of by keeping the work of simple seed pelleting machine to move and roll rice paddy seed, with spray The about a quarter (about 1.3g) of 5.25g powdered composition (13-2) is added to rice paddy seed while day with fog spray water So that said composition is attached to the outside of first layer.When powdered composition (13-2) is attached to the cup 2 made of polyethylene During inwall, scraping powdered composition (13-2) by using scraper makes the single close to whole amount add powdered composition (13- 2) it is attached to rice paddy seed.By similar process in triplicate, 5.25g powdered composition (13-2) is set to be attached to first layer Outside to form the second coatings (hereinafter, be referred to as " second layer ") comprising zinc oxide in the outside of first layer.Coating The total amount of the middle water used is 2.9g.
It is mobile and under conditions of rolling rice paddy seed while being worked by making simple seed pelleting machine, by 0.1g's SORPOL5080 is added to rice paddy seed to be attached to the outside of the second layer.The rice seed that will be reclaimed from simple seed pelleting machine Son is spread in stainless steel pallet so that it is not overlapping, and dries whole night to obtain the coating rice paddy seed (13) of the present invention.
Preparation example 14
By five grams zinc oxide 3N5,5g iron oxide, 0.1g KURARAY POVAL PVA-220S and 0.25g it is swollen Moisten native HOTAKA mixing to obtain powdered composition (14).The particle mean size of powdered composition (14) is 11.6 μm.
To the cup made of polyethylene with 200mL capacity, about 100mL water is poured into, and by 20g solid carbon dioxide seed rice Then son soaks 10 minutes added to wherein.Then rice paddy seed is reclaimed from water, removes the excess of attachment on the surface Water, then rice paddy seed is loaded into be fixed to the simple seed pelleting machine created by cup 2 made of polyethylene.Simply Seed pelleting machine is in agitator 3 to work in the range of 130 to 140rpm rotating speeds with mobile and roll rice paddy seed, Ran Hou The about a quarter (about 2.6g) of 10.35g powdered composition (14) is added to rice with while sprayer spray water Seed is so that powdered composition (14) is attached to rice paddy seed.When powdered composition (14) is attached to made of polyethylene During the inwall of cup 2, scraping powdered composition (14) by using scraper makes the single close to whole amount add powdered composition (14) it is attached to rice paddy seed.By similar process in triplicate, 10.35g powdered composition (14) is set to be attached to rice Seed is to form coatings.The total amount of the water used in coating is 1.7g.Then, by keeping simple seed pelleting machine to work Under conditions of movement and rolling rice paddy seed, 0.1g SORPOL5080 is added to rice paddy seed to be attached to coatings Outside.The coating rice paddy seed reclaimed from simple seed pelleting machine is spread in stainless steel pallet so that it is not overlapping, and Dry whole night to obtain the coating rice paddy seed (14) of the present invention.
Preparation example 15
By two grams of the grade of zinc oxide second, 18g iron oxide, 0.2g KURARAY POVAL PVA-220S and 0.5g Bentonite HOTAKA mix to obtain powdered composition (15).The particle mean size of powdered composition (15) is 8.1 μm, and And its apparent relative density is 1.77g/mL.
Following methods are carried out according to the method described in preparation example 14.By using 20.7g above powdered composition Thing (15) replaces 10.35g powdered composition (14), then the addition of four parts of said composition point is made with forming coatings 0.2g SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (15) of the present invention.Used in coating The total amount of water is 3.5g.
Preparation example 16
By one gram of the grade of zinc oxide second, 9g iron oxide, 0.2g KURARAY POVAL PVA-220S and 0.25g Bentonite HOTAKA mix to obtain powdered composition (16).The particle mean size of powdered composition (16) is 11.3 μm, And its apparent relative density is 1.77g/mL.
Following methods are carried out according to the method described in preparation example 14.By using 10.45g above powdered composition Thing (16) replaces 10.35g powdered composition (14), then the addition of four parts of said composition point is made with forming coatings 0.1g SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (16) of the present invention.Used in coating The total amount of water is 1.9g.
Preparation example 17
By one gram of the grade of zinc oxide second, 9g iron oxide, 0.1g GOHSENOL GM-14S and 0.25g swelling Native HOTAKA is mixed to obtain powdered composition (17).The particle mean size of powdered composition (17) is 8.5 μm.
Following methods are carried out according to the method described in preparation example 14.By using 10.35g above powdered composition Thing (17) replaces 10.35g powdered composition (14), then the addition of four parts of said composition point is made with forming coatings 0.1g SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (17) of the present invention.Used in coating The total amount of water is 2.1g.
Preparation example 18
By one gram of the grade of zinc oxide second, 9g iron oxide, 0.1g KURARAY POVAL PVA-224S and 0.25g Bentonite HOTAKA mix to obtain powdered composition (18).The particle mean size of powdered composition (18) is 7.9 μm.
Following methods are carried out according to the method described in preparation example 14.By using 10.35g above powdered composition Thing (18) replaces 10.35g powdered composition (14), then the addition of four parts of said composition point is made with forming coatings 0.1g SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (18) of the present invention.Used in coating The total amount of water is 2.0g.
Preparation example 19
By two grams of the grade of zinc oxide second, 0.2g iron oxide, 0.1g KURARAY POVAL PVA-205S and 0.25g bentonite HOTAKA is mixed to obtain powdered composition (19).The particle mean size of powdered composition (19) is 3.1 μm, and its apparent relative density is 0.61g/mL.
Following methods are carried out according to the method described in preparation example 14.By using 2.55g above powdered composition Thing (19) replaces 10.35g powdered composition (14), then the addition of four parts of said composition point is made with forming coatings 0.1g SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (19) of the present invention.Used in coating The total amount of water is 0.6g.
Preparation example 20
By 0. 5 grams of the grade of zinc oxide second, 9.5g iron oxide, 0.1g KURARAY POVAL PVA-220S Mixed with 0.25g bentonite HOTAKA to obtain powdered composition (20).The particle mean size of powdered composition (20) is 20.2 μm, and its apparent relative density is 2.01g/mL.
Following methods are carried out according to the method described in preparation example 14.By using 10.35g above powdered composition Thing (20) replaces 10.35g powdered composition (14), then the addition of four parts of said composition point is made with forming coatings 0.1g SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (20) of the present invention.Used in coating The total amount of water is 1.7g.
Preparation example 21
By (E) -1- (the chloro- 1,3-thiazoles -5- ylmethyls of 2-) -3- methyl -2- nitros of 70 points zero (70.0) parts by weight Guanidine (common name：Clothianidin) and 30.0 parts by weight SHOKOZAN CLAY S mixing, and milled with centrifugation grinding mill to obtain powder Last shape agricultural chemicals B.Using Mastersizer 2000 (being manufactured by Malvern Instr Ltd.), using wet type measurement side The particle mean size for the powdered agricultural chemicals B that method determines is 13.0 μm.
By one gram of the grade of zinc oxide second, 9g iron oxide, 0.1g KURARAY POVAL PVA-220S, 0.25g Bentonite HOTAKA and 0.086g powdered agricultural chemicals B mix to obtain powdered composition (21).Powdered group The particle mean size of compound (21) is 9.6 μm.
Following methods are carried out according to the method described in preparation example 14.By using powdered group above of 10.436g Compound (21) replaces 10.35g powdered composition (14), then the addition of four parts of said composition point is made with forming coatings 0.1g SORPOL5080 is attached to the outsides of coatings to obtain the coating rice paddy seed (21) of the present invention.Used in coating The total amount of water is 1.9g.
Preparation example 22
Nine grams of iron oxide, 0.09g GOHSENOL GM-14S and 0.225g bentonite HOTAKA are mixed to obtain Powdered composition (22-1).
In addition, 1g zinc oxide 3N5,0.01g GOHSENOL GM-14S and 0.025g bentonite HOTAKA are mixed To obtain powdered composition (22-2).
Following methods are carried out according to the method described in preparation example 14.20 grams of solid carbon dioxide rice is soaked, is then made With the movement of simple seed pelleting machine and rice paddy seed is rolled, then by the powdered of 9.315g while with sprayer spray water The about a quarter (about 2.3g) of composition (22-1) is added to rice paddy seed so that composition is attached to rice paddy seed.Work as powder Shape composition (22-1) is attached to when the inwall of cup made of polyethylene 2, and powdered composition (22- is scraped by using scraper 1) the single addition powdered composition (22-1) close to whole amount is made to be attached to rice paddy seed.Pass through similar mistake in triplicate Journey, make 9.315g powdered composition (22-1) be attached to rice paddy seed with formed include iron oxide the first coatings ( Hereinafter referred to as " first layer ").The total amount of the water used in coating is 0.6g.
Then, under conditions of by keeping the work of simple seed pelleting machine to move and roll rice paddy seed, with spray The about a quarter (about 0.26g) of 1.035g powdered composition (22-2) is added to rice seed while day with fog spray water Son is so that said composition is attached to the outside of first layer.When powdered composition (22-2) is attached to cup 2 made of polyethylene Inwall when, by using scraper scrape powdered composition (22-2) make close to whole amount single add powdered composition (22-2) is attached to rice paddy seed.By similar process in triplicate, it is attached to 1.035g powdered composition (22-2) The outside of first layer (hereinafter, is referred to as " second to form the second coatings comprising zinc oxide in the outside of first layer Layer ").The total amount of the water used in coating is 0.9g.
It is mobile and under conditions of rolling rice paddy seed while being worked by making simple seed pelleting machine, by 0.1g's SORPOL5080 is added to rice paddy seed to be attached to the outside of the second layer.The rice seed that will be reclaimed from simple seed pelleting machine Son is spread in stainless steel pallet so that it is not overlapping, and dries whole night to obtain the coating rice paddy seed (22) of the present invention.
Compare preparation example 1
Ten grams of DAE1K and 1g KTS-1 is mixed to obtain 11g iron mixture A.
Following methods are carried out according to the method described in preparation example 1.20 grams of solid carbon dioxide rice is soaked, and logical Cross make the work of simple seed pelleting machine with it is mobile and roll rice paddy seed and with while dropper spray water by 11g iron mixing Thing A about a quarter (about 2.8g) is added to rice paddy seed so that iron mixture A is attached to rice paddy seed.As iron mixture A It is attached to when the inwall of cup made of polyethylene 2, scraping iron mixture A by using scraper adds the single close to whole amount Iron mixture A is attached to rice paddy seed.By similar process in triplicate, make 11g iron mixture A be attached to rice paddy seed with Form coatings.The total amount of the water used in coating is 1.9g.Then, by keeping simple seed pelleting machine work with movement And under conditions of rolling rice paddy seed, 0.5g KTS-1 is added to rice paddy seed to be attached to the outside of coatings.It will conform to the principle of simplicity The rice paddy seed reclaimed in easy seed pelleting machine is spread in stainless steel pallet so that it is not overlapping, then three times a day by water Rice paddy seed is sprayed to, continues two days, to accelerate the oxidation of iron, then rice paddy seed is dried whole night and is used to compare to obtain (I) coating rice paddy seed.
Next, test example is shown.
Test example 1
The culture dish being made of plastics is filled with about 30g soil, and is soaked with water, is then coated rice paddy seed by 50 Sowing is on soil surface.Culture dish is stood out of doors, then taken a picture with time-lapse camera to observe its state and count The quantity of the coating rice paddy seed retained one day after is sowed, retention rate is then calculated according to below equation.
Retention rate (%)=in quantity/50 × 100 for being coated rice paddy seed that sowing retains one day after
As a result it is shown in Table 1.The uncoated rice paddy seed of rice paddy seed (as control) expression in table 1, and due to The feeding infringement of bird such as sparrow, the retention rate of seed is 0%.
[table 1]
Retention rate (%)
It is coated rice paddy seed (1) 100
It is coated rice paddy seed (2) 100
It is coated rice paddy seed (3) 100
It is coated rice paddy seed (4) 100
It is coated rice paddy seed (5) 100
It is coated rice paddy seed (6) 100
It is coated rice paddy seed (7) 96
It is coated rice paddy seed (8) 100
It is coated rice paddy seed (9) 100
It is coated rice paddy seed (12) 100
It is coated rice paddy seed (13) 100
Rice paddy seed (as control) 0
Test example 2
Wet gauze is placed on the culture dish being made of plastics, then by 20 coating rice paddy seed sowings on the surface. Culture dish is covered, then stood in 17 DEG C of constant temperature machine is arranged to, and whether research seed germinates with root after 10 days Germination percentage is calculated according to below equation.
Quantity/50 × 100 of germination percentage (%)=chitting piece
As a result it is shown in Table 2.
[table 2]
Test example 3
To the water (water hardness comprising 50mL：3) culture dish is put into 10 coating rice paddy seeds, and at room temperature (about 20 DEG C) Stand.After 30 minutes, using Visual Observations Observations research coating with the presence or absence of peeling.
As a result it is shown in Table 3.
[table 3]
With the presence or absence of peeling
It is coated rice paddy seed (1) It is not present
It is coated rice paddy seed (2) It is not present
It is coated rice paddy seed (3) It is not present
It is coated rice paddy seed (4) It is not present
It is coated rice paddy seed (5) It is not present
It is coated rice paddy seed (6) It is not present
It is coated rice paddy seed (7) It is not present
It is coated rice paddy seed (8) It is not present
It is coated rice paddy seed (9) It is not present
It is coated rice paddy seed (10) It is not present
It is coated rice paddy seed (11) It is not present
It is coated rice paddy seed (12) It is not present
It is coated rice paddy seed (13) It is not present
Test example 4
The culture dish being made of plastics is filled with about 30g soil, and is soaked with water, is then coated rice paddy seed by 50 Sowing is on soil surface.Culture dish is stood out of doors, then taken a picture with time-lapse camera to observe its state and count The quantity of the coating rice paddy seed retained one day after is sowed, retention rate is then calculated according to below equation.
Retention rate (%)=in quantity/50 × 100 for being coated rice paddy seed that sowing retains one day after
As a result it is shown in Table 4.The uncoated rice paddy seed of rice paddy seed (as control) expression in table 4, and due to The feeding infringement of bird such as sparrow, the retention rate of seed is 0%.
[table 4]
Retention rate (%)
It is coated rice paddy seed (14) 96
It is coated rice paddy seed (15) 94
It is coated rice paddy seed (16) 98
It is coated rice paddy seed (17) 98
It is coated rice paddy seed (18) 100
It is coated rice paddy seed (19) 100
It is coated rice paddy seed (22) 94
Rice paddy seed (as control) 0
Test example 5
Wet gauze is placed on the culture dish being made of plastics, then by 20 coating rice paddy seed sowings on the surface. Culture dish is covered, then stood in 17 DEG C of constant temperature machine is arranged to, and whether research seed germinates with root after 10 days Germination percentage is calculated according to below equation.
Quantity/50 × 100 of germination percentage (%)=chitting piece
As a result it is shown in Table 5.
[table 5]
Germination percentage (%)
It is coated rice paddy seed (15) 100
It is coated rice paddy seed (16) 100
It is coated rice paddy seed (17) 95
It is coated rice paddy seed (18) 90
It is coated rice paddy seed (19) 100
It is coated rice paddy seed (21) 100
It is coated rice paddy seed (I) 28
Test example 6
To the water (water hardness comprising 50mL：3) culture dish is put into 10 coating rice paddy seeds, and at room temperature (about 20 DEG C) Stand.After 30 minutes, using Visual Observations Observations research coating with the presence or absence of peeling.
As a result it is shown in Table 6.
[table 6]
With the presence or absence of peeling
It is coated rice paddy seed (14) It is not present
It is coated rice paddy seed (15) It is not present
It is coated rice paddy seed (16) It is not present
It is coated rice paddy seed (17) It is not present
It is coated rice paddy seed (18) It is not present
It is coated rice paddy seed (19) It is not present
It is coated rice paddy seed (20) It is not present
It is coated rice paddy seed (21) It is not present
It is coated rice paddy seed (22) It is not present
The explanation of reference
1 axle
2 made of polyethylene cup
3 agitators
4 supports

Claims (22)

1. a kind of coating rice paddy seed with coatings, wherein the coatings include with more than 500 degree of polymerization and Polyvinyl alcohol, zinc oxide, bentonite and the surfactant of saponification degree in the range of 71.0mol% to 97.5mol%.
2. a kind of coating rice paddy seed with coatings, wherein the coatings include with more than 500 degree of polymerization and Polyvinyl alcohol, zinc oxide and the bentonite of saponification degree in the range of 71.0mol% to 97.5mol%, and at least in the bag Surfactant is maintained on the surface of clothing rice paddy seed.
3. coating rice paddy seed according to claim 1 or 2, wherein the coatings are included selected from following (A) group extremely Few one kind；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
4. coating rice paddy seed according to claim 3, wherein the coatings have comprising selected from (A) group extremely A kind of few first layer and the second layer for including zinc oxide in the outside for being coated on the first layer.
5. coating rice paddy seed according to any one of claim 1 to 3, wherein the coatings also include iron oxide.
6. coating rice paddy seed according to claim 5, wherein the coatings have the first layer comprising iron oxide and It is coated on the second layer for including zinc oxide in the outside of the first layer.
7. a kind of powdered composition, the powdered composition is included with more than 500 degree of polymerization and in 71.0mol% extremely Polyvinyl alcohol, zinc oxide and the bentonite of saponification degree in the range of 97.5mol%.
8. powdered composition according to claim 7, the powdered composition is included selected from following (A) group at least It is a kind of；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
9. the powdered composition according to claim 7 or 8, wherein particle mean size is in the range of 0.01 to 150 μm.
10. the powdered composition according to any one of claim 7 to 9, wherein apparent relative density 0.30 to In the range of 2.50g/mL.
11. the powdered composition according to any one of claim 7 to 9, wherein apparent relative density 0.30 to In the range of 2.0g/mL.
12. the powdered composition according to any one of claim 7 to 11, the powdered composition is also comprising oxidation Iron.
13. the particle mean size of the powdered composition according to any one of claim 7 to 12, wherein zinc oxide is 0.01 To in the range of 100 μm.
14. it is a kind of be used for prepare coating rice paddy seed kit, the kit at least with more than 500 the degree of polymerization and Polyvinyl alcohol, zinc oxide, bentonite and the surfactant of saponification degree in the range of 71.0mol% to 97.5mol%.
15. kit according to claim 14, the kit also has iron oxide.
16. the kit according to claims 14 or 15, the kit has at least one selected from following (A) group；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
17. a kind of method for being used to prepare coating rice paddy seed, the described method comprises the following steps：
(1) added while moving and rolling rice paddy seed with more than 500 degree of polymerization and in 71.0mol% extremely The polyvinyl alcohol of saponification degree in the range of 97.5mol%, zinc oxide, bentonite, at least one selected from following (A) group and water with Formed comprising the polyvinyl alcohol, zinc oxide, bentonite and selected from following (A) group at least one coatings the step of,
(2) surfactant is added while moving and rolling the seed obtained in step (1) so that the surface-active Agent is maintained at the step of outside of the layer formed by step (1), and
(3) the step of drying the seed obtained in step (2)；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
18. a kind of method for being used to prepare coating rice paddy seed, the described method comprises the following steps：
(1) (I) is added with more than 500 degree of polymerization and in 71.0mol% extremely while moving and rolling rice paddy seed Polyvinyl alcohol, bentonite, at least one selected from following (A) group and the water of saponification degree in the range of 97.5mol% are wrapped with being formed The step of containing the polyvinyl alcohol, bentonite and selected from least one coatings that following (A) is organized, and (II) in movement and are rolled The polyvinyl alcohol, zinc oxide, bentonite and water are added to pass through step while moving the seed obtained in step (I) (I) the step of outside of the layer formed is formed comprising the polyvinyl alcohol, zinc oxide and bentonitic coatings,
(2) surfactant is added while moving and rolling the seed obtained in step (1) so that the surface-active Agent is maintained at the step of outside of the layer formed by step (1), and
(3) the step of drying the seed obtained in step (2)；
(A) group：The group being made up of titanium oxide, clay, zeolite and calcium carbonate.
A kind of 19. coating rice paddy seed prepared by method by according to claim 17 or 18.
20. a kind of method for being used to prepare coating rice paddy seed, the described method comprises the following steps：
(1) added while moving and rolling rice paddy seed with more than 500 degree of polymerization and in 71.0mol% extremely Polyvinyl alcohol, zinc oxide, iron oxide, bentonite and the water of saponification degree in the range of 97.5mol% include the poly- second to be formed The step of enol, zinc oxide, iron oxide and bentonitic coatings,
(2) surfactant is added while moving and rolling the seed obtained in step (1) so that the surface-active Agent is maintained at the step of outside of the layer formed by step (1), and
(3) the step of drying the seed obtained in step (2).
21. a kind of method for being used to prepare coating rice paddy seed, the described method comprises the following steps：
(1) (i) is added with more than 500 degree of polymerization and in 71.0mol% extremely while moving and rolling rice paddy seed Polyvinyl alcohol, iron oxide, bentonite and the water of saponification degree in the range of 97.5mol% include the polyvinyl alcohol, oxygen to be formed The step of changing iron and bentonitic coatings, and (ii) are added while moving and rolling the seed obtained in step (i) The polyvinyl alcohol, zinc oxide, bentonite and water include the polyethylene to be formed in the outside of the layer formed by step (i) The step of alcohol, zinc oxide and bentonitic coatings,
(2) surfactant is added while moving and rolling the seed obtained in step (1) so that the surface-active Agent is maintained at the step of outside of the layer formed by step (1), and
(3) the step of drying the seed obtained in step (2).
A kind of 22. coating rice paddy seed prepared by method by according to claim 20 or 21.
CN201680022115.8A 2015-04-17 2016-04-14 It is coated rice paddy seed and preparation method thereof Pending CN107426961A (en)

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JP6372638B1 (en) * 2017-01-30 2018-08-15 Ｊｆｅスチール株式会社 Seed coating agent, coated seed and seed coating method
TWI787788B (en) * 2021-04-20 2022-12-21 首立企業股份有限公司 Rice seed coating material, rice seed coated with coating material and coating method

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JPH08275620A (en) * 1995-04-03 1996-10-22 Nissan Chem Ind Ltd Herbicide-coated rice unhulled rice seed
JP2004511238A (en) * 2000-10-16 2004-04-15 ドライウォーター，　インコーポレイテッド Multi-compositions and methods
JP2008005827A (en) * 2006-05-29 2008-01-17 Dainippon Jochugiku Co Ltd Plant seed
JP2012521989A (en) * 2009-03-23 2012-09-20 ブリガム・ヤング・ユニバーシティ Method for applying seed coating composition and soil surfactant to water repellent soil
JP2013208106A (en) * 2012-02-27 2013-10-10 National Agriculture & Food Research Organization Plant propagation material and method for cultivation of the same
WO2014005555A1 (en) * 2012-07-06 2014-01-09 Rhodia Operations Growth enhancement of plant
JP2014090671A (en) * 2012-10-31 2014-05-19 National Agriculture & Food Research Organization Coated seed and use thereof

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TWI432517B (en) * 2005-07-08 2014-04-01 Toray Industries Resin composition and molded article composed of the same

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Publication number Priority date Publication date Assignee Title
JPH08275620A (en) * 1995-04-03 1996-10-22 Nissan Chem Ind Ltd Herbicide-coated rice unhulled rice seed
JP2004511238A (en) * 2000-10-16 2004-04-15 ドライウォーター，　インコーポレイテッド Multi-compositions and methods
JP2008005827A (en) * 2006-05-29 2008-01-17 Dainippon Jochugiku Co Ltd Plant seed
JP2012521989A (en) * 2009-03-23 2012-09-20 ブリガム・ヤング・ユニバーシティ Method for applying seed coating composition and soil surfactant to water repellent soil
JP2013208106A (en) * 2012-02-27 2013-10-10 National Agriculture & Food Research Organization Plant propagation material and method for cultivation of the same
WO2014005555A1 (en) * 2012-07-06 2014-01-09 Rhodia Operations Growth enhancement of plant
JP2014090671A (en) * 2012-10-31 2014-05-19 National Agriculture & Food Research Organization Coated seed and use thereof

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