JP6098781B2 - Plant growth promoter and plant growth promotion method - Google Patents

Description

  The present invention relates to a plant growth promoter and a plant growth promotion method.

In the cultivation of plants such as agricultural crops and horticultural crops, various chemical fertilizers are used to promote the growth of crops and increase the yield, etc. Various means for promoting the growth of plants such as rhizosphere activators that promote absorption have been proposed.
In addition, for the poor growth of crops due to various diseases and the decrease in yield, measures are taken at an early stage of disease occurrence by applying agricultural chemicals suitable for each disease, such as fungicides, etc. As a result, the yield is increased.

  However, the large amount of chemical fertilizer mentioned above can lead to soil damage and fertilizer damage such as soil acidification and fertilizer burning in farmland, and these damages cause the occurrence of crop diseases. If a large amount of pesticide is used to eliminate the problem, there is a problem such as a problem of residual pesticide. In addition, various means such as rooting growth promoters that have been proposed are not clear in their effects and many have not yet been used. Although the use of pesticides such as fungicides is effective against the occurrence of diseases, this will only ensure the yield of crops when there is no disease, and will promote the growth of crops and increase the yield. It has not yet reached.

  This invention is made | formed in view of such a situation, The objective is to provide the growth promoter which has the outstanding growth promotion effect | action with respect to agricultural products.

  As a result of earnest research, the present inventors have surprisingly found that the seeds and seedlings, or the soil in which they are cultivated, are generally referred to when seeding seedlings or planting seedlings of agricultural or horticultural crops. It has been found that by applying amisulbrom, metalaxyl, metalaxyl M or cyazofamid, the growth of crops can be dramatically accelerated and the yield can be significantly increased, and the present invention has been completed.

That is, the present invention relates to the following [1] to [13].
[1] As a compound having a plant growth promoting action,
3- (3-Bromo-6-fluoro-2-methylindol-1-ylsulfonyl) -N, N-dimethyl-1H-1,2,4-triazole-1-sulfonamide, methyl = N- (methoxyacetyl ) -N- (2,6-xylyl) -DL-alaninate, methyl = N- (methoxyacetyl) -N- (2,6-xylyl) -D-alaninate and 4-chloro-2-cyano-N, N - consisting of a combination of two or more of dimethyl -5-p-tolyl-imidazol-1-one or of a compound from the group consisting of sulfonamides Ru is selected or these compounds, growth promoters of plants.
[2] As a compound having a plant growth promoting action,
3- (3-Bromo-6-fluoro-2-methylindol-1-ylsulfonyl) -N, N-dimethyl-1H-1,2,4-triazole-1-sulfonamide and 4-chloro-2-cyano -N, consists N- dimethyl -5-p-tolyl-imidazol-1 from the group consisting of sulfonamides of one or that will be selected compound or both compounds, the growth promoting agent according to [1].
[3] The growth promoter according to [1] or [2], wherein the plant is a plant of Brassicaceae, Legumes, Cucurbitaceae, Lilyaceae, Gramineae, Eggplantaceae, Asteraceae, or Rabbitaceae.
[4] The growth promoter according to [3], wherein the plant is a cruciferous plant.
[5] The plant is rape, Osaka Chinese cabbage, turnip, mustard greens, cauliflower, cabbage, cabbage, watercress, kale, komatsuna, kohlrabi, squeezed vegetables (variety of mustard greens), santo greens, sardine greens, taasai, kaiware radish, Japanese radish, Thai rhinoceros, Chinese cabbage, Chinese cypress, Chinese radish, Japanese mustard (Mizukakena), Rape blossoms, Nozawana, Chinese cabbage, Pakchoi, Nikkadai radish (Radesh), Japanese vegetables, Hiroshima rape, Broccoli, Horse radish, Mizutake The growth promoter according to [4], which is selected from cruciferous crops consisting of rape, rocket salad (Lucora), sprout cabbage and wasabi.
[ 6 ] The growth promoter according to any one of [1] to [ 5 ], which is used for seed treatment.
[ 7 ] The growth promoter according to any one of [1] to [ 5 ], which is used for soil treatment.
[ 8 ] The growth promoter according to any one of [1] to [ 5 ], which is for cell seedling irrigation treatment.
[9] an aqueous suspension form, growth promoter according to any one of [1] to [8].
[10] the water-dispersible granular growth promoter according to any one of [1] to [8].
[11] powdery, growth promoter according to any one of [1] to [8].
[ 12 ] The growth promoter according to any one of [1] to [ 5 ] is applied to at least one selected from the group consisting of plant seeds, plant seedlings, plant roots, and cultivated soil. A method for promoting plant growth.
[ 13 ] The method for promoting growth according to [ 12 ], wherein the growth promoter is attached to plant seeds.
[14] the growth promoting agent, until planting before seedlings, characterized by irrigation or sprayed on seedlings growing compartments or seedlings growing special container plants, growth promoting method according to [12].
[ 15 ] The growth promotion method according to [ 12 ], wherein the growth promoter is applied to cultivated soil.

The growth promoter of the present invention can dramatically promote the growth of plants without causing soil damage or the like due to the use of a large amount of conventional chemical fertilizers, and also greatly increases the yield of crops when there is no disease occurrence. An increase in yield exceeding 1 can be realized.
Drugs that control or inhibit plant diseases are generally intended to eliminate the adverse effects of such diseases (development, death, etc.), and are inherent in promoting the growth of plants in environments where there is no risk of disease occurrence. It does not exert its effect. However, in the growth promoter of the present invention, at least one of the above three compounds is blended, so that the plant growth promoting action is remarkably exhibited separately from the control and suppression of diseases. Thus, dramatic growth of plant growth is expected.

FIG. 1 is a diagram showing growth photographs of soybeans having reached the three-leaf stage of Example 1 and Control Example 1 [(A) shows soybeans of Example 1 and (B) shows soybeans of Control Example 1. ]. FIG. 2 shows photographs of broccoli florets obtained in Example 6 and Control Example 3 [(A) shows broccoli florets of Example 6 and (B) shows broccoli florets of Control Example 3, The left side shows the florets that can be shipped, and the right side shows the non-standard florets. ]. FIG. 3 is a diagram showing photographs of broccoli florets obtained in Example 7 and Control Example 4 [(A) shows the broccoli florets of Example 7 and (B) shows the broccoli florets of Control Example 4. ]. FIG. 4 is a diagram showing photographs of the root parts of broccoli obtained in Example 7 and Control Example 4 [(A) shows the broccoli root part of Example 7 and (B) shows the broccoli root part of Control Example 4. ].

<Growth promoter>
The plant growth promoter of the present invention is 3- (3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl) -N, N-dimethyl-1H-1,2,4-triazole-1- Sulfonamide [generic name: amisulbrom, hereinafter referred to by a generic name in this specification], methyl = N- (methoxyacetyl) -N- (2,6-xylyl) -DL-alaninate [generic name: metalaxyl, Hereinafter, it is described in the present specification by a general name], methyl = N- (methoxyacetyl) -N- (2,6-xylyl) -D-alaninate [generic name: metalaxyl M, hereinafter Described by name] and 4-chloro-2-cyano-N, N-dimethyl-5-p-tolylimidazole-1-sulfonamide [generic name: cyazofamide, hereinafter referred to herein. Contains at least one selected from the group consisting have described in general names.

  The plant growth promoter is particularly suitable for plants of Brassicaceae, Legumes, Cucurbitaceae, Lilies, Gramineae, Eggplants, Asteraceae, or Rabbitaceae.

  The growth promoter of the present invention can be suitably used for seed treatment, soil treatment, or cell seedling treatment. In addition, about the form and application method of the growth promoter for these uses, it explains in full detail in the [application method to the seed of a plant] mentioned later, the [application method to the cultivation soil], and the [application method to a plant seedling]. It is as follows.

  The growth promoter of the present invention can be suitably used in the form of an aqueous suspension, a water-dispersible granular form or a powdery form. In addition, about these forms, it corresponds to what was mentioned as a suspension agent, a granule wettable powder, a powder agent etc. in <Agricultural chemicals formulation> mentioned later.

<Growth promotion method>
The above growth promoter of the present invention can be applied to at least one selected from the group consisting of plant seeds, plant seedlings, plant roots, and cultivated soils. The growth promotion method is also an object of the present invention.

[Applicable plants (seed, seedling, etc.)]
Plants applied to the growth promotion method of the present invention include food crops (wheat, rice, beans, etc.) and horticultural crops (vegetables, etc.) seeds and seedlings (including cell seedlings).

For food crops, wheat crops such as oats, barley, wheat, and barley, rice crops such as rice and corn, legume crops such as azuki bean, green beans, peas, broad beans, soybeans, groundnuts, potatoes, sweet potatoes, buckwheat, etc. Is mentioned.
For horticultural crops (vegetables), oilseed rape, Osaka Chinese cabbage, turnip, mustard greens, cauliflower, cabbage, Kyoto vegetables, watercress, kale, komatsuna, kohlrabi, squeezed vegetables (variety of mustard greens), eastern vegetables, quick vegetables, taasai, kaiwaredaikon , Daikon, Taisai, Takana, Chingensai, Karasai, Mizukakena, Rape, Nozawana, Chinese cabbage, Pakchoi, Twenty-day radish (Radesh), Japanese vegetables, Hiroshima vegetables, broccoli, horse radish, Mizukake vegetables, rocket salad (Lucora), cruciferous crops such as sprouts cabbage and wasabi, cucurbits crops such as pumpkin, cucumber, shirori, watermelon, melon, onion, leek, leek, garlic, lily family crops such as lacquer (Also called leeks), eggplants such as eggplant, tomatoes, peppers, burdock, lettuce ), Crown daisy, chrysanthemum crops such as butterbur, spinach, include the Chenopodiaceae crops such as sugar beet.
Special crops include tobacco.
Among the above, it is suitably applied to crops / plants of Brassicaceae, Leguminosae, Cucurbitaceae, Lilyaceae, Asteraceae, or Rubiaceae.

[Method of application to plant seeds]
In the present invention, as a method of applying a growth promoter (amisulbrom, metalaxyl, metalaxyl M, cyazofamide) to plant seeds, that is, a method of attaching a growth promoter to seeds, a coating granulation method, a gel coating method (Japanese Patent Laid-Open No. 2002-2002). No. 000011 publication), dressing treatment, and the like are mentioned, but there is no particular limitation as long as it is a method that can be attached to seeds.
The amount of the growth promoter to be attached to the seeds by the coating granulation method, the gel-like coating method and the dressing treatment is preferably 1 kg to 10,000 kg per 100 kg of seeds.

(1) Coated granulation method The coated granulation method is a method in which a coating material composed of a growth promoter, a binder, or the like is used to adhere to the surface of seeds and then blown or forcibly dried. Various granulating apparatuses such as a seed dresser, a fluidized bed granulator, a rolling granulator, and a bread granulator can be used. In addition to growth promoters and binders, extenders, surfactants, plasticizers, colorants, preservatives, water repellents, anti-caking agents, decomposition inhibitors, and the like can be added to the coating material.

In this invention, the compounding example of the coating agent used by the coating granulation method is shown in Table 1. In addition, "part" in any blending amount means part by mass.

(2) Gel coating method The gel coating method is a method developed to promote the germination of plant seeds and to prevent the growth failure after seeding and promote the growth. Plant seeds are enclosed in an aqueous gel capsule. Need to be done.
Examples of the aqueous gel forming the aqueous gel capsule include sodium alginate, gellan gum, xanthan gum, locust bean gum, carboxymethyl cellulose, pectin, gelatin, carrageenan, sodium polyacrylate, and agar. Of these, there are those that require metal ions to coexist for gelation, and salts, alkalis, and the like that supply these metal ions are appropriately added. Furthermore, various preservatives, fertilizer components, growth promoters, and the like can be added as appropriate.
An aqueous gel capsule containing seeds is formed by, for example, forming a droplet of an aqueous solution having an aqueous gel-forming polymer at the tip of a thin tube, and adding one or more seeds into the droplet using the thin tube, It can be produced by dripping into a coagulating liquid having a function of coagulating the droplets. At this time, a gas such as air or oxygen can be sealed as required.
Examples of the coagulation liquid include those containing divalent metals such as calcium and barium and ions such as aluminum, and salts thereof, for example, lactate salts (which are solid) and aqueous solutions thereof are used. A potassium aluminum sulfate (potassium alum) aqueous solution can also be used.

In the present invention, Table 2 shows formulation examples of aqueous gel capsules used in the gel coating method. In addition, "part" in a compounding quantity means a mass part.

(3) Powder coating treatment Powder coating treatment is a method in which a powder or wettable powder (agrochemical formulation) containing a growth promoter is directly sprinkled on plant seeds. In principle, seeds wet with water or seeds themselves are used. And a solid or liquid pesticide preparation in a container and agitated to attach a growth promoter to the seed surface or inside the seed. Specific examples of the powder coating process include a powder coating method, a smearing method (slurry method), and a liquid immersion method.

The treatment agent for dressing plant seeds may be prepared by diluting with an agrochemical formulation itself or with water. Pesticide preparations include, for example, liquid concentrates (emulsifiable concentrates), emulsifiable concentrates, wettable powders, water-soluble solvents, water-dispersible granule, water-soluble granules (water) soluble granule, suspension concentrate, concentrated emulsion, suspoemulsion, microemulsion, dustable powder, micro granule, granule ) And various liquid preparations such as gels (gel) and solid preparations. When diluting these agrochemical formulations with water, it is usually desirable to dilute 1 to 20,000 times with water.

  The above-mentioned agricultural chemical preparations are usually mixed with the above-mentioned growth promoter (Amisulbrom, Metalaxyl, Metalaxyl M, Siazofamide) with an appropriate solid carrier or liquid carrier, and further optionally a surfactant, penetrating agent, spreading agent, thickening agent. It can be obtained by adding an agent, an antifreezing agent, a binder, an anti-caking agent, a disintegrating agent, an antifoaming agent, an antiseptic and an anti-decomposition agent.

  In the powder coating method, the above solid preparation itself can be used. The powder coating method is a method in which a solid preparation such as a powder or wettable powder is stirred together with a plant seed in a container to attach a growth promoter.

The smearing method and the liquid immersion method are methods in which a chemical solution obtained by diluting the above liquid preparation or solid preparation in water is applied to seeds.
The smearing method is an improvement of the powder coating method, in which a solid preparation is immersed in a small amount of water (slurry or liquid), stirred together with seeds in a container, and a growth promoter is attached. The liquid preparation can also be used by diluting the preparation itself or with water.
In the liquid immersion method, the preparation itself or a solution diluted with water is placed in a container, the plant seed is immersed, and the drug penetrates into the seed. After the chemical solution is immersed, it may be air-dried. The immersion time is not particularly limited. In addition to water, a surfactant or the like can be added at the time of dilution.
When the above-mentioned agricultural chemical formulation is treated on the plant seeds by the smearing method and the liquid immersion method, it can be applied usually diluted 1 to 20,000 times with water.

These powder coating treatments can be carried out using a seed treatment mixer, a fertilizer blender, a plastic bag or a vinyl sheet, but the type of container is not particularly limited.
In addition, seeds that have been powdered can be dried and stored, but may be sown without drying.

Table 3 below shows formulation examples of the agrochemical preparations as treatment agents for dressing the plant seeds. In addition, the numerical value in the following compounding examples means a mass part.

[Method of application to plant seedlings]
In the present invention, the method for applying the growth promoter to seedlings (including cell seedlings) is, for example, irrigated or sprayed before planting seedlings in a plant seedling growing section or a seedling growing dedicated container, It can be carried out by irrigating or spraying the seedling growing container after filling the floor soil and before planting the seedling. Alternatively, the seedling growing container may be irrigated or sprayed before filling into the seedling growing container, and then mixed as necessary to fill the seedling growing container.

The plant seedling breeding section means a place where plant seedlings are grown or a container where plant seedlings are grown.
The plant seedling growing container includes a seedling box, a plastic pot, a cell tray, a cell seedling tray, a plug tray, a paper pot (registered trademark, Nippon Sugar Sugar Co., Ltd.) and a chain pot (registered trademark, Nippon Sugar Sugar). It is a container used for growing plant seedlings represented by (Co., Ltd.).

  In application to seedlings, when applying the growth promoter (amisulbrom, metalaxyl, metalaxyl M, cyazofamid), the growth promoter is selected from the various agrochemical preparations mentioned in [Method of applying to plant seeds] described above and those Can be applied in a form prepared by diluting with water usually 1 to 20,000 times (in the form of an aqueous solution or aqueous dispersion of a growth promoter).

Application of the growth promoter to the seedling is carried out until the seedling is planted in the cultivated soil, and preferably the following four periods are targeted. The application method of the agrochemical formulation (growth promoter) in each period is as follows.
-First period: Before sowing, the agrochemical formulation is irrigated or sprayed on the soil in the plant seedling growing area or the soil filled in the plant seedling growing container. Alternatively, irrigation or spraying may be performed on the soil before filling the seedling growing container, and then the soil may be mixed as necessary to fill the seedling growing container. The treatment time of the agrochemical preparation is usually within one month before sowing, preferably within one week, and more preferably within three days.
-Second period: After sowing, but before soiling, irrigate or spray the pesticide preparation on the seeds sowed on the soil, and then cover the soil.
・ Third period: Immediately after sowing and immediately after soil covering, pesticide formulation is irrigated or sprayed on the soil surface of the soil covering.
-Fourth period: During seedling raising The agricultural chemical formulation is irrigated or sprayed on the soil surface of the plant seedling growing section or the soil surface in the plant seedling growing container.

  Irrigation or spraying of the agrochemical formulation can be performed using an appropriate device such as dew or spray.

Although the application amount to the seedling of the said growth promoter is not limited, It is 0.05-20g normally per 100 seedlings, Preferably it is 0.1-10g, More preferably, it is 0.1-5g . Moreover, per 1,800cm < ² >, it is 0.01-20g normally, Preferably it is 0.1-1
0 g, more preferably 0.1 to 5 g.

The application amount of the agrochemical preparation per unit number of seedlings is not particularly limited, but is usually 20 to 2,100 mL, preferably 20 to 1,600 mL, more preferably 20 to 1,100 mL per 100 seedlings. Preferably it is 20-600 mL.
Moreover, the application amount of the agrochemical preparation per unit area of the plant seedling growing section or the plant seedling growing container is not particularly limited, but is usually 20 to 2,100 mL per 1,800 cm ² , preferably 20 to 1, It is 600 mL, More preferably, it is 20-1,100 mL, More preferably, it is 20-600 mL.

[Application method to cultivated soil]
In the present invention, when the growth promoter (Amisulbrom, Metalaxyl, Metalaxyl M, Siazofamide) is applied to the cultivated soil, the growth promoter is selected from the various agricultural chemical formulations mentioned in the above [Method of applying to plant seeds]. Or the form (aqueous solution or aqueous dispersion) prepared by diluting the said agricultural chemical formulation with water is mentioned. When diluting, it is usually desirable to dilute 1 to 20,000 times with water.

In the present invention, the time when the growth promoter is applied to the cultivated soil is usually preferably sprayed on a field before sowing of plant seeds or before planting of plant seedlings. Preparation) After spraying treatment, it is preferable to mix the chemical with soil. The treatment time of the drug is usually within one month before sowing, preferably within one week, and more preferably within three days.
Not only the period before sowing / planting but also the time before sowing / planting and after sowing / planting but before covering (soil (planting) on seed (seed)) (planting hole) or sowing (planting) It may be applied to the period after sowing / planting and after covering (the agent is irrigated or sprayed on the soil surface of the covering soil).

When applied to the period before sowing / planting, and the period after sowing / planting and after covering, the amount of growth promoter (Amisulbrom, metalaxyl, metalaxyl M, cyazofamid) per 10 ares is 0.01 g to 1000 g. It is desirable to be.
In addition, when applied in the period after sowing / fixed planting but before covering, the amount of growth promoter (Amisulbrom, Metalaxyl, Metalaxyl M, Siazofamide) per seed or seedling is 0.000001 g to 10 g. It is desirable to be.

[Method of application to plant roots]
In the present specification, the “root” is a portion that absorbs moisture and nutrients in soil or hydroponic liquid when a plant is cultivated.
As described in detail in the above-mentioned [Method of applying to plant seedling] and [Method of applying to cultivated soil], the introduction into the root is carried out until the seedling is planted in the cultivated soil or after sowing of the seed or after planting of the seedling. Achieving the objectives by spraying or irrigating a growth promoter, or transplanting a plant after adding a growth promoter to the soil as detailed in [Method of application to cultivated soil] above. Can do.
Alternatively, a growth promoter, for example, various agricultural chemical preparations mentioned in the above-mentioned [Method of applying to plant seeds] or a form prepared by diluting them with water usually 1 to 20,000 times (a growth promoter aqueous solution or This can be easily carried out by immersing the roots in the form of an aqueous dispersion. In this case, the immersion time is about 30 minutes to 3 hours.

  Examples of various agents and additives that can be used in the aforementioned seed application methods (coating granulation method, gel coating method) and agricultural chemical formulations are described below.

[Binder]
Examples of the binder include a water-soluble binder and a water-insoluble binder.
Examples of water-soluble binders include dextrin (roasted dextrin and enzyme-modified dextrin, etc.), acid-degraded starch, oxidized starch, pregelatinized starch, etherified starch (carboxymethyl starch, hydroxyalkyl starch, cationic starch, etc.), esterification Modified starch such as starch (acetate starch and phosphate starch), cross-linked starch and grafted starch, natural substances such as sodium alginate, gum arabic, gelatin, tragacanth gum, locust bean gum and casein, eg carboxymethylcellulose sodium salt, hydroxy Cellulose derivatives such as ethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylcellulose, ethylcellulose and acetylcellulose, and for example polyvinylmethyl Ether, polyethylene glycol, polypropylene glycol, polyethylene polypropylene block copolymer, polyvinyl alcohol, partially saponified vinyl acetate and vinyl ether copolymer, polyvinyl pyrrolidone, polyvinyl pyrrolidone and vinyl acetate copolymer, and other polymers such as polyacrylamide Is mentioned.
Examples of the water-insoluble binder include polyvinyl acetate, a copolymer of vinyl acetate and ethylene, a copolymer of vinyl acetate and vinyl versatate, a copolymer of vinyl acetate, ethylene and vinyl chloride, a polyacrylate, Water such as acrylic ester and styrene copolymer, acrylic ester and silicone copolymer, acrylic ester and ethylene copolymer, polyurethane, styrene and butadiene copolymer, and acrylonitrile and butadiene copolymer Insoluble thermoplastic resins and, for example, amino resins (such as urea resins and melamine resins), phenol resins (such as resole resins and novolac resins), resorcinol formaldehyde resins, xylene resins, furan resins, epoxy resins, polyisocyanate adhesives, unsaturated Polyester Thermosetting resin such as microcrystalline thermosetting acrylic resins.
Examples of the epoxy resin used as a water-insoluble binder include bisphenol A type epoxy compounds, bisphenol F type epoxy compounds, novolac type epoxy compounds, aliphatic epoxy compounds, alicyclic type epoxy compounds, and glycidylamine type epoxy compounds. And glycidyl ester type epoxy compounds. Examples of the epoxy resin curing agent include polyamide, aliphatic polyamine, alicyclic polyamine, aromatic polyamine, and heterocyclic amine.

[Bulking agent]
Examples of extenders include quartz, calcite, gypsum, dolomite, chalk, kaolinite, pyrophyllite, sericite, halosite, metahalosite, kibushi clay, glazed clay, porcelain stone, siegrite, allophane, Natural minerals such as shirasu, kira, talc, bentonite, pumice, attapulgite, zeolite and diatomaceous earth such as calcined clay, perlite, shirasu balloon, vermiculite, attapulgous clay and calcined products of natural minerals such as calcined diatomaceous earth such as carbonic acid Inorganic salts such as magnesium, calcium carbonate, sodium carbonate, sodium bicarbonate, ammonium sulfate, sodium sulfate, magnesium sulfate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate and potassium chloride, for example, sugars such as glucose, fructose, sucrose and lactose For example, polysaccharides such as starch, powdered cellulose and dextrin, organic substances such as urea, urea derivatives, benzoic acid and benzoic acid salts, plants such as wood flour, corn cobs, walnut shells and tobacco stems, fly ash, Examples include white carbon and fertilizer.

[Surfactant]
Examples of the surfactant include the following (A), (B), (C), (D) and (E). Moreover, surfactant may be used independently or may use 2 or more types together.

(A) Nonionic surfactant:
(A-1) Polyethylene glycol type surfactant:
For example, polyoxyethylene alkyl (C ₁₂ ~ ₁₈₎ ether, ethylene oxide adducts of alkyl naphthol, polyoxyethylene (mono or di) alkyl (C ₈ ~ ₁₂₎ phenyl ether, polyoxyethylene (mono- or di-) alkyl ( C ₈ ~ ₁₂₎ formalin condensates of phenyl ether, polyoxyethylene (mono-, di- or tri-) phenyl phenyl ether, polyoxyethylene (mono-, di- or tri-) benzyl phenyl ether, polyoxypropylene (mono-, di- or tri) Benzyl phenyl ether, polyoxyethylene (mono, di or tri) styryl phenyl ether, polyoxypropylene (mono, di or tri) styryl phenyl ether, polyoxyethylene (mono, di or tri) styryl phenyl ether Polymers, polyoxyethylene polyoxypropylene block polymers, alkyl (C ₁₂ ~ ₁₈₎ polyoxyethylene polyoxypropylene block polymer ethers, alkyl (C ₈ ~ ₁₂₎ phenyl polyoxyethylene polyoxypropylene block polymer ethers, polyoxyethylene bis phenyl ethers, polyoxyethylene resin acid esters, polyoxyethylene fatty acid (C ₁₂ ~ ₁₈₎ monoesters, polyoxyethylene fatty acid (C ₁₂ ~ ₁₈₎ diesters, polyoxyethylene sorbitan fatty acid (C ₁₂ ~ ₁₈₎ esters, glycerol fatty acid esters of ethylene oxide adducts, castor oil ethylene oxide adduct, hydrogenated castor oil ethylene oxide adduct, alkyl (C ₁₂ ~ ₁₈₎ amine ethylene oxide adduct and a fatty acid ( It includes _12-18) amide ethylene oxide adducts.
(A-2) Polyhydric alcohol type surfactant:
For example, glycerol fatty acid esters, polyglycerol fatty acid esters, pentaerythritol fatty acid esters, sorbitol fatty acid (C ₁₂ ~ ₁₈₎ esters, sorbitan fatty acid (C ₁₂ ~ ₁₈₎ esters, sucrose fatty acid esters, polyhydric alcohol alkyl ethers and fatty acid alkanolamides Etc.
(A-3) Acetylene-based surfactant:
Examples thereof include acetylene glycol, acetylene alcohol, ethylene oxide adduct of acetylene glycol, ethylene oxide adduct of acetylene alcohol, and the like.
(A-4) Other surfactant:
Examples thereof include alkyl glycosides.

(B) Anionic surfactant:
(B-1) Carboxylic acid type surfactants: for example, polyacrylic acid, polymethacrylic acid, polymaleic acid, copolymers of maleic acid and olefins (such as isobutylene and diisobutylene), acrylic acid and itaconic acid Copolymer, methacrylic acid and itaconic acid copolymer, maleic acid and styrene copolymer, acrylic acid and methacrylic acid copolymer, acrylic acid and acrylic acid methyl ester copolymer, acrylic acid a copolymer of vinyl acetate, a copolymer of acrylic acid and maleic acid, N- methyl - fatty (C ₁₂ ~ ₁₈₎ sarcosinate, a carboxylic acid of resin acids and fatty acids (C ₁₂ ~ ₁₈₎ or the like, as well as their carboxylic Examples include acid salts.
(B-2) Sulfate ester type surfactant:
For example, alkyl (C ₁₂ ~ ₁₈₎ sulfates, polyoxyethylene alkyl (C ₁₂ ~ ₁₈₎ ether sulfuric acid ester, polyoxyethylene (mono or di) alkyl (C ₈ ~ ₁₂₎ phenyl ether sulfuric acid ester, polyoxyethylene ( mono- or di-) alkyl (C ₈ ~ ₁₂
) Phenyl ether polymer sulfate ester, polyoxyethylene (mono, di or tri) phenyl phenyl ether sulfate ester, polyoxyethylene (mono, di or tri) benzyl phenyl ether sulfate ester, polyoxyethylene (mono, di or tri) ) Styryl phenyl ether sulfate ester, polyoxyethylene (mono, di or tri) styryl phenyl ether polymer sulfate ester, polyoxyethylene polyoxypropylene block polymer sulfate ester, sulfated oil, sulfated fatty acid ester, sulfated fatty acid And sulfates such as sulfated olefins, and salts of these sulfates.
(B-3) Sulfonic acid type surfactant:
For example, paraffin (C ₁₂ ~ ₂₂₎ sulfonic acid, alkyl (C ₈ ~ ₁₂₎ benzenesulfonic acid, alkyl (C ₈ ~ ₁₂₎ formalin condensates of benzenesulfonic acid, formalin condensate of cresol sulfonic acid, alpha-olefin ( C ₁₄ ~ ₁₆₎ sulfonic acid, dialkyl (C ₈ ~ ₁₂
) Sulfosuccinate, lignin sulfonate, polyoxyethylene (mono or di) alkyl (C ₈ ~ ₁₂₎ phenyl ether sulfonate, polyoxyethylene alkyl (C ₁₂ ~ ₁₈₎ ether sulfosuccinic acid half ester, naphthalene sulfonic acid (mono or di) alkyl (C ₁ ~ ₆₎ naphthalenesulfonic acid formalin condensate of naphthalenesulfonic acid, (mono or di) alkyl (C ₁ ~ ₆₎ formalin condensates of naphthalenesulfonic acid formalin condensate of creosote oil sulfonic acid , alkyl (C ₈ ~ ₁₂₎ ether disulfonic acid, Igepon T (trade name), a sulfonic acid copolymer such as polystyrene sulfonic acid and styrene sulfonic acid and methacrylic acid, and salts thereof sulfonic acid.
(B-4) Phosphate ester type surfactant:
For example, alkyl (C ₈ ~ ₁₂₎ phosphates, polyoxyethylene alkyl (C ₁₂ ~ ₁₈
) Ether phosphate esters, polyoxyethylene (mono or di) alkyl (C ₈ ~ ₁₂₎ phenyl ether phosphate ester, a polyoxyethylene (mono-, di- or tri-) phosphate esters of alkyl (C ₈ ~ ₁₂₎ phenyl ether polymer, Polyoxyethylene (mono, di or tri) phenyl phenyl ether phosphate, polyoxyethylene (mono, di or tri) benzyl phenyl ether phosphate, polyoxyethylene (mono, di or tri) styryl phenyl ether phosphate, polyoxy Phosphoric esters of ethylene (mono, di or tri) styryl phenyl ether polymers, phosphoric esters of polyoxyethylene polyoxypropylene block polymers, phosphatidylcholines, phosphatidylethanolimines and condensation Phosphate esters such as phosphate (e.g. tripolyphosphate), and salts of these phosphate esters.
Examples of the salt in the above (B-1) to (B-4) include alkali metals (lithium, sodium, potassium, etc.), alkaline earth metals (calcium, magnesium, etc.), ammonium and various amines (for example, alkylamine, cyclohexane). Alkylamine and alkanolamine).

(C) Cationic surfactant:
Examples thereof include alkylamine salts and alkyl quaternary ammonium salts.

(D) Amphoteric surfactant:
Examples thereof include betaine type surfactants and amino acid type surfactants.

(E) Other surfactants:
For example, silicone surfactants and fluorine surfactants can be used.

[Carrier]
Examples of solid carriers include quartz, kaolinite, pyrophyllite, sericite, talc, bentonite, acid clay, attapulgite, zeolite, and diatomaceous earth, and other minerals, calcium carbonate, ammonium sulfate, sodium sulfate, and potassium chloride. Examples include salts, synthetic silicas and synthetic silicates, natural polymers such as wheat flour, starch, crystalline cellulose, carboxymethylcellulose, and gelatin, sugars such as glucose, mantose, lactose, and sucrose, and urea. Liquid carriers include, for example, ethylene glycol , Alcohols such as propylene glycol and isopropanol, aromatic hydrocarbons such as xylene, alkylbenzene and alkylnaphthalene, ethers such as butyl cellosolve, ketones such as cyclohexanone , Esters such as γ-butyrolactone, acid amides such as N-methylpyrrolidone and N-octylpyrrolidone, vegetable oils such as soybean oil, rapeseed oil, cottonseed oil and castor oil, and water.
These solid and liquid carriers may be used alone or in combination of two or more.

  The usefulness of the present invention will be specifically described in the following test examples. However, the present invention is not limited to these.

[Examples 1 to 3, Control Example 1] Soybean Growth Test Using Soil Collected in the Field The growth promoter of the present invention was applied to soybean seeds and sown on the soil collected from the field. The plant height and root length of soybean that reached the third leaf stage were measured, and the amount of liquid discharged from the stem base of soybean was measured.

<Treatment of soybean seeds with growth promoters>
10 g of soybean (variety Enrei) seeds were weighed into a 50 mL centrifuge tube manufactured by Falcon. Here, 100 mg of vortex FS (Amisulbrom suspension, Nissan Chemical Industries, Ltd.) (1% by mass with respect to seed mass) or 200 mg of Ranman (registered trademark) flowable (Ciazofamide suspension, Ishihara Biosciences, Inc.) )) (2% by mass with respect to the seed mass) was added, and the mixture was stirred for 30 seconds using a vortex mixer. After stirring, the soybean seed treated with the drug was taken out from the centrifuge tube and air-dried for 30 minutes or more.
In addition, 1.7 mg of metalaxyl M drug substance is added to 30 μL of emulsifier [Solpol 4D384 (Toho Chemical Co., Ltd.) 4%, Kelzan S (Kelco) 2%, Veegum G (Vanderbilt) 0.6%, Proxel GXL ( Zeneca) 0.2%, Rhodosil atamfoam 432 (Rhodia) 0.2%, propylene glycol 10%, water 74.8%], 70 μL of seed-treated white sample [Solpol 3005XL (Toho Chemical Co., Ltd.) 10%, acetone 30%, dimethylformamide NN 30%, xylene 30%]. The obtained suspension was added to 10 g of soybean (variety Enrei) seeds weighed in a 50 mL centrifuge tube manufactured by Falcon (metallxyl M amount 0.17 mg per 1 g of seeds), and stirred for 30 seconds using a vortex mixer. . After stirring, the soybean seed treated with the drug was taken out from the centrifuge tube and air-dried for 30 minutes or more.

<Seeding and growing method>
1 kg of Chiyoda Kasei (San Agro Co., Ltd.) is added as a fertilizer per 1 kg of soil collected from the farm (Shimano, Shiraoka-cho, Saitama Prefecture) and mixed, then placed in a pot (4 inch bowl) and treated with soybean seeds (3 Seeds) or 3 seeds of untreated soybean seeds per pot.
After sowing, the pot was placed in a thermostatic chamber set at a temperature of 20 ° C., sufficiently irrigated once every day, and cultivated until the growth of soybean reached the third leaf stage.
Fig. 1 (Fig. 1 (A) Soybeans treated with vortex FS, Fig. 1 (B) Soybeans without drug treatment) shows growth photos of vortex FS-treated soybeans that have reached the third leaf stage and soybeans without chemicals. Show.

<Measurement of plant height>
The plant height of each 18 soybeans that reached the third leaf stage was measured, and the average value was calculated. Table 4 shows the obtained results.
<Measurement method of liquid discharge rate>
In a container filled with water, put a pot in which the soybeans that reached the above-mentioned three-leaf stage (soybeans treated with vortex FS and soybeans without treatment with chemicals) were planted and submerged on the soil surface. After leaving still for 30 minutes, it took out from the container and left still for 24 hours.
Then, the hypocotyl (stem base) 3 cm high from the soil surface was cut horizontally with scissors, and a cap (100 mg absorbent cotton was put in a 2 mL Eppendorf tube and the mass was measured in advance) was put on it, Absorbed. The change in the mass of the cap after a certain period of time was measured as the amount of liquid discharged until 6 hours passed every hour. The hypocotyl was cut at 11:00 am and the mass change of the cap was measured until 17:00 pm. The mass change of 18 individuals was measured for each of soybean seeds treated with vortex FS (amisulbrome) and soybeans grown from untreated soybean seeds, and calculated as an average value.
The results obtained are shown in Table 5.
<Measurement of plant height>
After the test of the brewing rate, the root length (root length) of soybean (18 individuals) was measured, and the average value was calculated. The results obtained are shown in Table 5.

  As shown in Table 4, soybeans treated with vortex FS (Amisulbrom), Ranman flowable (Ciazofamide) and metalaxyl M have a higher plant height than that of untreated soybeans, especially with vortex FS (Amisulbrom). In the growth of the treated soybean, the plant height was about 1.5 times that of the untreated soybean (see FIG. 1).

As shown in Table 5, soybean treated with vortex FS (Amisulbrom) grows about 1.2 times the root length compared to the untreated soybean, and the cumulative liquid output after 6 hours is about The result was increased by 35%.
The above results showed that the water-absorbing activity of the germinated roots was remarkably increased by treating the seeds with amisulbrom in the soil collected from the field.

[Examples 4 and 5, control example 2] Soybean growth test in the field The growth promoter of the present invention was applied to soybean seeds, sowed in the field, the germination rate 3 weeks after sowing and the yield after 3 months of growth. Was measured.

<Treatment of soybean seeds with growth promoters>
50 g of soybean (variety Enrei) seeds were weighed into a 50 mL centrifuge tube manufactured by Falcon. To this, 500 mg of vortex FS (Amisulbrom wettable powder, Nissan Chemical Industries, Ltd.) (1% by mass with respect to seed mass) was added and stirred for 30 seconds using a vortex mixer. After stirring, the drug-treated soybean seeds were removed from the centrifuge tube and allowed to air dry overnight.
In addition, 6.8 mg of metalaxyl M drug substance is 150 μL of emulsifier (Solpol 4D384 (Toho Chemical Co., Ltd.) 4%, Kelzan S (Kelco) 2%, Veegum G (Vanderbilt) 0.6%, Proxel GX ( Zeneca) 0.2%, Rhodosil amfofoam 432 (Rhodia) 0.2%, propylene glycol 10%, water 74.8%), 350 μL of seed-treated white sample (Solpol 3005XL (Toho Chemical Co., Ltd.)) 10%, acetone 30%, dimethylformamide NN 30%, xylene 30%). The obtained suspension was added to 50 g of soybean (variety Enrei) seeds weighed in a 50 mL centrifuge tube manufactured by Falcon (136 kg of metalaxyl M per 1 kg of seeds), and stirred for 30 seconds using a vortex mixer. After stirring, the drug-treated soybean seeds were removed from the centrifuge tube and allowed to air dry overnight.

<Seeding and growing method>
The above-mentioned soybean seeds treated with the drug (two kinds) or the soybean seeds not treated with the drug were sown in a field (Hamada farm field, Shiraoka-cho, Saitama Prefecture) at a pod width of 1 m × 40 cm between strains and 2 holes / hole. The seeding was carried out in 2 sections (section A and section B).
Three weeks after sowing, the number of buddings was investigated and the budding rate was calculated.
In addition, 10 months after each sowing, 10 strains were randomly selected, and those straws were collected and weighed.
The results obtained are shown in Table 6.

  As shown in Table 6, the average yield of soybeans treated with vortex FS (Amisulbrom) and metalaxyl M showed a large value compared to the average yield of untreated soybeans. In particular, vortex FS was not treated with soybeans. As a result, the average yield was increased by a factor of 1.4.

[Example 6, control example 3] Broccoli growth test in a field (1)
The growth promoter of the present invention was mixed with the soil in the field used for the broccoli growth test and irrigated with broccoli seedlings to investigate the growth status of broccoli florets.

<Drug treatment method and planting method>
In the field (Mitoyo City, Kagawa Prefecture), planting broccoli (variety: SK-081) seedlings in a test scale: 4.5m x 1.4m (6.3m ² ), about 30 seedlings, and two-line system The florets were harvested 86 days after the planting and the yield of the florets was measured. Moreover, the fungus density in the soil was measured 117 days after the planting. In addition, when the broccoli seedlings were planted, the soil and broccoli seedlings were treated with chemicals under the following conditions. In addition, as a control example 3, broccoli was grown without any chemical treatment (application) on soil and seedlings, and subjected to the same test.
-Example 6: Oracle (active ingredient: amisulbrom) test group The pulverized oracle powder (Nissan Chemical Industry Co., Ltd.) on the soil in the test group in an amount of 30 kg per 10a, and then plowed with a rider. And mixed at the same time (total soil treatment). Here, a 3-leaf broccoli grown from a suspension of 2.5 g of Oracle granule wettable powder (Nissan Chemical Co., Ltd.) diluted with 0.5 L of water in a 126-well cell tray (30 × 60 cm) The seedlings were irrigated from above, and broccoli seedlings were planted in this field.

<Yield measurement of broccoli florets>
After planting (after chemical treatment), after 86 days, the broccoli that has grown was cut so that the length from the tip of the floret is about 16 to 17 cm, and the florets were harvested. It was classified into a diameter of 10 cm or more (shippable florets) or a diameter of less than 10 cm (non-standard florets). The photographs of the broccoli florets obtained in the Example 6 (Oracle) test group and the untreated group (Control Example 3) are shown in FIG. 2 (FIG. 2 (A): Example 6, FIG. 2 (B): Control Example 3). .
The number of each of these classified florets was determined and the mass was measured. The results obtained are shown in Table 7.

  As shown in Table 7 and FIG. 2, broccoli grown in soil treated with oracle (active ingredient: amisulbrom) (Example 6) can be shipped compared to broccoli grown in untreated soil (Control Example 3). The number and mass of both were greatly exceeded.

[Example 7, control example 4] Broccoli growth test in field (2)
The growth promoter of the present invention was mixed with soil in a field to be subjected to a broccoli growth test, and the state of growth of broccoli florets was observed.

<Drug treatment method and planting method>
In an agricultural field (Sukumo City, Kochi Prefecture), just before broccoli planting, powder oracle powder (Nissan Chemical Industry Co., Ltd.) on the soil in the test area in an amount of 30 kg per 10a and plow it with a rider. The mixture was mixed with the soil at the same time and was laid at the same time (total soil treatment). Broccoli (variety: SK-081) seedlings were planted here, and the floret diameter (average value of 50 strains) was measured 105 days after the planting. As Control Example 4, broccoli was grown without chemical treatment of the soil, and the floret diameter (average value of 10 strains) was measured 105 days after the planting. Table 8 shows the obtained results.
Moreover, the photograph of the broccoli flower bud of each test section is shown in FIG. 3 (FIG. 3 (A): Example 7, FIG. 3 (B): Control Example 4), and the photograph of the root part of broccoli is shown in FIG. 4 (FIG. 4 (A)). The results are shown in Example 7 and FIG. 4 (B): Control Example 4), respectively.

  As shown in Table 8 and FIG. 3, the diameter of the broccoli florets of Example 7 was about 30% larger than the diameter of the broccoli florets of Control Example 4. Moreover, as shown in FIG. 4, the result that the root amount of the broccoli of Example 7 was very large compared with the root of the broccoli of Control Example 4 was obtained. That is, in Example 7, it can be said that the root treatment was dramatically accelerated by the chemical treatment, which led to an increase in the floret diameter.

Claims (15)

As a compound having a plant growth promoting action,
3- (3-Bromo-6-fluoro-2-methylindol-1-ylsulfonyl) -N, N-dimethyl-1H-1,2,4-triazole-1-sulfonamide, methyl = N- (methoxyacetyl ) -N- (2,6-xylyl) -DL-alaninate, methyl = N- (methoxyacetyl) -N- (2,6-xylyl) -D-alaninate and 4-chloro-2-cyano-N, N - consisting of a combination of two or more of dimethyl -5-p-tolyl-imidazol-1-one or of a compound from the group consisting of sulfonamides Ru is selected or these compounds, growth promoters of plants. As a compound having a plant growth promoting action,
3- (3-Bromo-6-fluoro-2-methylindol-1-ylsulfonyl) -N, N-dimethyl-1H-1,2,4-triazole-1-sulfonamide and 4-chloro-2-cyano -N, consists N- dimethyl -5-p-tolyl-imidazol-1 from the group consisting of sulfonamides of one or that will be selected compound or both compounds, the growth promoting agent according to claim 1. The growth promoter according to claim 1 or 2, wherein the plant is a plant of Brassicaceae, Legumes, Cucurbitaceae, Lilyaceae, Gramineae, Eggplantaceae, Asteraceae, or Rabbitaceae. The growth promoter according to claim 3, wherein the plant is a cruciferous plant. The plant is rape, Osaka Chinese cabbage, turnip, mustard greens, cauliflower, cabbage, Kyoto greens, watercress, kale, komatsuna, kohlrabi, squeezed vegetables (variety of mustard greens), Shandong greens, immediately prepared greens, taasai, kaiwaredaikon, radish, Thai rhinoceros , Takana, Chingensai, Karana (Misakakena), Sugar beet (Misukakena), Rape blossom, Nozawana, Chinese cabbage, Pakchoi, Japanese radish (Radesh), Japanese vegetable, Hiroshima vegetable, Broccoli, Horse radish, Mizukake rape, Rocket 5. A cruciferous crop consisting of salad (Lucora), sprout cabbage and wasabi.
The growth promoter listed. The growth promoter according to any one of claims 1 to 5 , which is used for seed treatment. The growth promoter according to any one of claims 1 to 5 , which is used for soil treatment. The growth promoter according to any one of claims 1 to 5 , which is for cell seedling irrigation treatment. Aqueous suspension-like, growth promoter according to any one of claims 1 to 8. Water dispersible granular growth promoter according to any one of claims 1 to 8. Powdery, growth promoter according to any one of claims 1 to 8. By applying the growth promoter according to any one of claims 1 to 5 to at least one selected from the group consisting of plant seeds, plant seedlings, plant roots and cultivated soil, Plant growth promotion method. The growth promoting method according to claim 12 , wherein the growth promoting agent is attached to plant seeds. The growth promoting method according to claim 12 , wherein the growth promoter is irrigated or sprayed on a plant seedling growing section or a seedling growing dedicated container before planting seedlings. The growth promoting method according to claim 12 , wherein the growth promoting agent is applied to cultivated soil.