KR101402035B1 - Labor-saving agrochemical granular and manufacturing method thereof - Google Patents

Abstract

The present invention relates to an agricultural chemical granule and a manufacturing method thereof. The agricultural chemical granule of the present invention is an agricultural chemical granule comprising an agricultural chemical active ingredient, a wetting agent, a dispersing agent, and an extender, wherein the wetting agent is at least one selected from the group consisting of a sulfate type, a phosphate type and a succinate type anionic surfactant, The spreading agent is a polymer surfactant, and the extender is at least one of an inorganic salt and a water-insoluble substance. Despite the external environment, the active ingredient of the pesticide is rapidly diffused into the rice paddy at the time of treatment with the powered fertilizer spreader, It is a pesticide formulation that can exert its beneficial effects.

Description

[0001] The present invention relates to a method for producing agricultural chemicals,

The present invention relates to an agricultural chemical granule which is designed to be able to be rapidly treated with a relatively small labor force by using a power fertilizer spreader at a convenient place such as a paddy field without difficulty in spraying pesticide, .

Conventional agricultural chemical granules used for controlling various insect pests and herbicides in Munnon are in the form of fine granules having a diameter of 0.8 to 1 mm and about 3 kg per 1,000 m ² (10 a). The spraying method is a situation in which a worker directly puts in a munnon using a hand or a resurfacing machine, and it takes an extremely long working time of about 40 to 50 minutes per 1,000 m ² (10 a) of a skilled farmer.

Therefore, the development of pesticide formulation is simple, and labor-saving pesticide formulation is making considerable progress. For example, Korean Patent Laid-Open Publication No. 2008-0051229 discloses an agricultural chemical active ingredient, a surfactant, a sodium benzoate auxiliary, a disintegrating agent, a water-borne oil-based carrier and a water-soluble extender and a water- Korean Patent Laid-Open Publication No. 2009-0082109 discloses a water-borne spreading pesticide granule composition comprising a pesticidal active ingredient, a plastic micro-hollow body, a surfactant, a binder and calcium carbonate as a water- The present invention provides a pesticide-containing pesticidal formulation for padding.

This type of pesticide is mostly used as a pesticide preparation agent in which the used water-borne carrier does not settle in water but floats on the water surface. , The active ingredient of the pesticide spreads over a wide area in a short time along the water surface to exhibit the drug effect.

However, the above-mentioned formulations of the prior art can not spread the active ingredients of the pesticide uniformly due to the external environment of the munon, namely, wind, algae, And the like.

Therefore, the measures to prevent the pesticide application after the pesticide spraying are not affected by the external environment of the mushroom, that is, the pesticide application is floated in the water without flooding on the water surface and uniformly diffused to exhibit stable drug efficacy, Pesticide formulation is urgently needed.

Korean Patent Laid-Open Publication No. 2001-0017340 discloses a method for producing a pesticidal composition comprising clay minerals as an increasing agent, an agricultural chemical agent, an auxiliary agent such as a fixing agent, a surfactant and a foaming agent, Lt; RTI ID = 0.0 > pesticide < / RTI >

However, the medium-large granular pesticide disclosed in the above-mentioned Japanese Patent Laid-Open Publication No. 2001-0017340 assumes a spraying distance of about 5 m by mixing the fertilizer and the pesticide and using the power rescue machine, There is a problem that can not be avoided.

In addition, since the number of pesticide particles used per unit area of medium- and large-sized granular pesticides is smaller than that of ordinary pesticide granules, measures must be taken to allow each of the pesticide particles, which have fallen after spraying, Discloses that water-collapsible granules can be easily produced by using a hydrophilic fixing agent such as starch, dextrin, CMC, syrup, and the like. However, in the art, anyone using a hydrophilic fixing agent has noticed that the pesticide formulation does not spread as quickly as expected.

The diffusivity of the pesticide granule is an important physical scale for expressing the intended biological efficacy by uniformly distributing the active ingredient of the pesticide in a wide area in the silkworm.

This is a phenomenon that is expressed in water due to the interaction with active ingredients of the pesticide, wetting agent, dispersant, extender and water in the agrochemical granule. That is, when the water penetrates into the pesticide granule, the active ingredient of the pesticide is developed into the whole pesticide by the repulsive force of the dispersant that is collapsed by the wetting agent bound to the pesticide active ingredient .

Therefore, the inventors of the present invention have found that (1) an agrochemical granule exhibiting uniform drug efficacy without being influenced even in a non-nonsuper environment can spray agrochemical easily from a pesticide by a power fertilizer spreader, (2) the diameter of the lip should be large, (2) the pesticide granule should not settle on the water surface immediately after spraying, and (3) the ideal combination of wetting agent and dispersing agent is required for rapid spreading.

The present inventors have conducted intensive studies and have found that when the appearance of an agricultural chemical granule is produced in the form of a uniform column or sphere having a diameter of one millimeter or more of 1.5 mm or more, In addition, it was found that it was possible to spray a long distance by using a power fertilizer spreader from the river, and the spraying time of the pesticide could be drastically shortened.

In addition, when inorganic salts and water-insoluble substances are used as the extender, the pesticide particles do not float on the surface of the water and settle down. Therefore, they are not affected by external environment such as wind, algae, And furthermore, by the constitution including various anionic surfactants as a wetting agent and a polymer surfactant as a dispersing agent, it has been found that the dispersibility of agricultural chemical granules precipitated in water is increased, Thereby completing the invention.

Korean Patent Laid-Open Publication No. 2008-0051229 (medium and large-sized pesticide having water-suspended diffusion property and method for producing the same, published on June 11, 2008) Korean Patent Laid-Open Publication No. 2009-0082109 (Manufacturing Method of Agrochemical Granules, Published on 29., 2009) Korean Patent Laid-Open Publication No. 2001-0017340 (Granular type medium-sized granular pesticide for Bibu Yusong waterpipe (rice): disclosed on November 14, 2001)

The present invention provides an agricultural chemical granule and a method for producing the agricultural chemical granule, wherein the active ingredient of the agricultural chemical is rapidly dispersed in the rice paddy regardless of the external environment such as wind, algae, suspended matter on the surface of the rice paddy, have.

It is another object of the present invention to provide a labor-saving agricultural chemical granule and a method for producing the same, in which the treatment is completed by simply spraying the paper in a short time using a power fertilizer spreader.

In the present invention,

An agrochemical granule comprising an agrochemical active ingredient, a wetting agent, a dispersant, and an extender,

The wetting agent is at least one selected from the group consisting of a sulfate type, a phosphate type and a succinate type anionic surfactant;

The diffusing agent is a polymeric surfactant;

The extender is at least one of an inorganic salt and a water-insoluble substance.

The pesticidal agrochemical granule of the present invention can be molded by mixing 0.1 to 50% by weight of an active ingredient of an agricultural chemical, 0.1 to 5% by weight of a wetting agent, 0.5 to 10% by weight of a dispersing agent, and 40 to 90% by weight of an extender .

According to another aspect of the present invention, it is preferable that the bioartificant pesticide granule has a particle diameter of 1.5 mm to 5 mm and can be treated with a powered fertilizer spreader.

According to another aspect of the present invention, there is provided a method for producing the above-

A step of mixing and pulverizing the agricultural chemical active ingredient, the dispersing agent, and the extender (first step);

A step of mixing a wetting agent into the mixture obtained in the first step and kneading with adding water (second step):

A step of extruding the kneaded product obtained in the second step by using an extrusion granulator with a screen (third step);

And a step of cutting and drying the molded article obtained in the third step (fourth step).

Hereinafter, the configuration of the present invention will be described in more detail.

In the present invention, the active ingredient of the pesticide includes active ingredients of agricultural chemicals such as herbicides, fungicides, insecticides, growth regulators and the like as active ingredients showing the desired effects as pesticides.

As a specific example of the agricultural chemical active ingredient of the herbicide, azimsulfuron: 1- (4,6-dimethoxypyrimidin-2-yl) -3- [1-methyl- 4- (2- methyl- 2H-tetrazol- ) pyrazol-5-ylsulfonyl] urea, Benfuresate (2,3-dihydro-3,3-dimethylbenzofuran-5-ylethanesulfonate), Bensulfuron-methyl (methyl α- (4,6-dimethyoxypyrimidin -2-ylcarbamoyl sulfamoyl- ο- toluate, Benzobicyclon: 3- (2-chloro-4-mesylbenzoyl) -2-phenylthiobicyclo [3.2.1] oct- (RS) -2-bromo-3,3-dimethyl-N- (1-methyl-1-phenylethyl) butyramide, and Cafenstrole: N, N-diethyl-3-mesitylsulfonyl-1H -1,2,4-triazole-1-carboxamide, Carfentrazone-ethyl: ethyl (RS) -2-chloro-3- {2-chloro-5- [4- (difluoromethyl) 1-yl] -4-fluorophenyl} propionate, cyclosulfamuron: 1- [2- (cyclopropylcarbonyl) anilinosulfonyl] 3- (4,6-dimethoxypyrimidin-2-yl) urea), Daimuron ( Daimuron: 1- (1-methyl- 1-phenylethyl) -3-p-tolylurea), dimethacrylate meth Lin ^{(Dimethametryn: (RS) -N 2} - (1,2-dimethylpropyl) -N 4 -ethyl-6- methylthio-1,3,5-triazine-2,4-diamine, Fentrazamide 4- (2-chlorophenyl) -N- cyclohexyl- N- ethyl-4,5-dihydro- H- tetrazole-1-carboxamide, Pyriminobac-methyl ( EZ ) -2- (4,6-dimethoxypyrimidin-2-yloxy) -6- (1-methoxyiminoethyl) benzoate, 1-methylcarbamoylsulfamoyl-1-methylpyrazole-4-carboxylate, Imazosulfuron: 1- (2-chloroimidazo [1,2 -a] pyridin-3-ylsulfonyl) -3- (4,6-dimethoxypyrimidin-2-yl) urea), methoxy Pena set (Mefenacet: 2- (1,3-benzothiazol -2-yloxy) - N -methylacetanilide) , Mesotrione (2- (4-mesyl-2-nitrobenzoyl) cyclohexane-1,3-dione), metamifop ( R ) -2- [4- -benzoxazol-2-yloxy) phenoxy] -2'-fluoro- N -methylpropionanilide, oxaziclomefone: 3- [1- (3,5-dichlorophenyl) -1 -methylethyl] -3,4-dihydro-6-methyl-5-phenyl-2 H -1,3-oxazin-4-one), a phenoxy syulram (Penoxsulam: 3 - (2,2-difluoroethoxy) - N - (5,8-dimethoxy [1,2,4] triazolo [1,5- c] pyrimidin-2-yl) -α, α, α-trifluorotoluene-2-sulfonamide 2-fluorophenyl) -5-isopropylidene-1,3-oxazolidine-2,4-dione, and Flucetosulfuron: (1 RS , 2 RS , 1 RS , 2 SR ) -1- {3 - [(4,6-dimethoxypyrimidin-2-ylcarbamoyl) sulfamoyl] -2- pyridyl} -2-fluoropropyl methoxyacetate, Pretilachlor: 2- chloro-2 ', 6'-diethyl- N - (2-propoxyethyl) acetanilide, pyrazolynate: 4- (2,4- dichlorobenzoyl) -1,3-dimethylpyrazol-5-yl toluene- ), Pyrazosulfuron-ethyl (pyrazosulfuron-ethyl; ethyl 5 - [(4,6-dimethoxypyrimidin-2-ylcarbamoyl) sulfamoyl] -1-methylpyrazole-4-carboxylate, pyriftalid: ( RS ) -7- (4,6-dimethoxypyrimidin- ) -3-methyl-2-benzofuran-1 (3H) -one), pyrimisulfan (RS) -2 '- [(4,6-dimethoxypyrimidin- 1-difluoro-6 '- (methoxymethyl) methanesulfonanilide), simetryn ( N ² , N ⁴ -diethyl-6-methylthio-1,3,5-triazine- (4-mesyl-3 - [(RS) -tetrahydro-2-furylmethoxymethyl] benzoyl} cyclohexane-1,3-dione), triafamone: 2 '- [ , 6-dimethoxy-1,3,5-triazin-2-yl) carbonyl] -1,1,6'-trifluoro- N -methylmethanesulfonanilide, Thiobencarb: S -4-chlorobenzyl diethyl (thiocarbamate) And the like.

Specific examples of the pesticidal active ingredient of the insecticide include imidacloprid (1- (6-chloro-3-pyridylmethyl) -N-nitroimidazolidin-2-ylidenemine, carbosulfan (2,3- dimethylbenzofuran-7-yl (dibutylaminothio) methylcarbamate, dinotefuran ( EZ ) - ( RS ) -1-methyl-2-nitro- 3- tetrahydro-3-furylmethyl) guanidine, Etofenprox : 2- (4-ethoxyphenyl) -2-methylpropyl 3-phenoxybenzyl ether, Thiamethoxam ( EZ ) -3- (2-chloro-1,3-thiazol- 1,3-oxadiazinan-4-ylidene (nitro) amine, thiacloprid (Z) -3- (6-chloro-3-pyridylmethyl) -1,3- thiazolidin-2-ylidenecyanamide, Dimethoate (Dimethoate; O, O -dimethyl S - [2- (methylamino) -2-oxoethyl] dithiophosphate), Te buffet Nozawa Id (Tebufenozide: N-tert -butyl- N '- (4-ethylbenzoyl) -3 , 5- dimethylbenzohydrazide), chroma Id page Nozawa (Chromafenozide: N'- tert -butyl-5 -methyl- N '- (3,5-xyloyl) chromane-6-carbohydrazide), between (3-bromo-1- (3-chloro-2-pyridyl) -4'-cyano-2'-methyl-6'- (methylcarbamoyl) pyrazole-5-carboxanilide), cyanuraniliprole (3-chloro-2-pyridyl) -2'-methyl-6 '- (methylcarbamoyl) pyrazole-5-carboxanilide).

Specific examples of the agricultural chemical active ingredient of the fungicide include tricyclazole (5-methyl-1,2,4-triazolo [3,4- b ] [1,3] benzothiazole), probenazole allyloxy-1,2-benzothiazole 1,1-dioxide, thifluzamide: 2 ', 6'-dibromo-2-methyl-4'-trifluoromethoxy- carboxanilide, oxolinic acid (5-ethyl-5,8-dihydro-8-oxo [1,3] dioxolo [4,5-g] quinoline-7-carboxylic acid), prochloraz : N -propyl- N - [2- ( 2,4,6-trichlorophenoxy) ethyl] imidazole-1-carboxamide), balrida azithromycin (Validamycine: (1 R, 2 R, 3 S, 4 S, 6 R) - 2,3-dihydroxy-6-hydroxymethy l -4 - [(1 S, 4 R, 5 S, 6 S) -4,5,6-trihydroxy-3-hydroxymethylcyclohex-2-enylamino] cyclohexyl β-D-glucopyranoside Triflumizole ( E ) -4-chloro-α, α-trifluoro-N- (1-imidazol-1-yl-2-propoxyethylidene) -o-toluidine . In particular, they may be used in combination with one or more herbicides, one or more herbicides and a fungicide, one or more herbicides and pesticides, one or more fungicides and pesticides, or one or more fungicides with a pesticide and herbicide, It is particularly preferable to use a combination of two or more herbicidal active ingredients of agricultural chemicals.

In the present invention, the active ingredient of the pesticidal active ingredient is preferably used in an amount of 0.1 to 50% by weight, and if it is less than 0.1% by weight, it is difficult to obtain sufficient effect of the pesticide. If it exceeds 50% by weight, There is a possibility of causing harm.

The wetting agent used in the present invention is a substance that causes water to penetrate into the pesticide granule, thereby easily causing the extender tissue to disintegrate. The wetting agent of the present invention is suitably selected from various anionic surfactants, more specifically, sodium dodecyl sulfate (sodium salt: CAS No. 151-21-3), sodium dodecanol ethoxylated sulfate monoether (Dodecanol, sulfate type surfactant such as monoether with sulfuric acid, sodium salt: CAS No. 9004-82-4), potassium polyoxyethylene lauryl ether phosphate (potassium salt: CAS No. 58318-92-6), phosphate type surfactants such as dodecyl alcohol (ethoxylated, phosphated: CAS No. 39464-66-9), sodium bis (2 Succinate-type surfactants such as sodium bis (2-ethylhexyl) sulfosuccinate: CAS NO. 577-11-7, and the like, Or more.

The wetting agent is preferably used in an amount of 0.1 to 5% by weight, and if it is less than 0.1% by weight, penetration of water is difficult to easily occur and the effect of disintegration is insufficient. When the amount of the wetting agent is more than 5% by weight, It collapses easily before it loses commercial value.

The diffusing agent used in the present invention is a substance which expands the agrochemical active ingredient of agricultural chemicals into water as a whole. As the dispersing agent suitable for the purpose of the present invention, a polymer surfactant is preferably used. More specifically, sodium polyacrylate (sodium salt: CAS NO 9003-04-7), butyl 2-propenoate and ethenylbenzene Methyl-2-propenoic acid polymer with butyl 2-propenoate and ethenylbenzene, sodium salt: CAS NO 50885-72-8), a sodium salt of methylnaphthalene formalin condensate (Polycondensate of sodium methyl naphthalene and formaldehyde: CAS NO 81065-51-2), and they are effective when used in combination of one or more. Also, if the average particle diameter is reduced to 1 to 30 microns by using various crushing equipment such as a jet mill or a hammer mill, the spreadability is further increased.

The use of the wetting agent and the dispersing agent as described above is advantageous in that the granules are smoothly ejected in the extrusion granulation process during the manufacturing process of the agrochemical granule and the surface is smooth and hardly formed to increase the production yield and the occurrence of the dust , There is an additional advantage that the safety for farm workers is improved.

The extender used in the present invention refers to various physical phenomena for manifesting the final desired drug effect, and at the same time, various inorganic salts and water-insoluble substances are used for the purpose of the excipient.

Examples of the inorganic salt include sodium tripolyphosphate (CAS No. 7758-29-4) having a specific gravity of 0.3 or more, ammonium sulfate, potassium chloride, magnesium chloride and the like. As the water-insoluble material, clay having a specific gravity of 0.2 or more, bentonite , Talc, calcium carbonate, kaolin, feldspar, acidic clay, silica sand, zeolite, perlite, vermiculite, attapulgite, diatomaceous earth and white carbon. One or more of these extenders can be used in combination . Among such extender components, use of bentonite and further use of at least one of other water-insoluble materials or inorganic salts is particularly preferable because it can obtain a very rapid effect on the swelling and collapse of agricultural chemical granules.

If necessary, further additives such as binders, surfactants and pigments may be used in the agricultural chemical granules of the present invention.

The addition of the binder to the agrochemical granule of the present invention increases the hardness of the particles, thereby increasing the production yield in the manufacturing process of the extrusion granulation and preventing the occurrence of dust due to breakage of the agrochemical granule in the power sprayer when spraying the medicament. It is good.

Preferred binders include lignosulfonic acid (sodium salt: CAS No. 8061-51-6), lignosulfonic acid (calcium salt: CAS No. 8061-52-7), polyvinyl alcohol (Polyvinyl alcohol: CAS No. 9002-89-5), poly (vinyl acetate): CAS No. 9003-20-7), carboxymethyl cellulose (CAS No. 9000- 11-07), Guar gum (CAS No. 9000-30-0), Gum Arabic (CAS No. 9000-01-5), Starch (CAS No. 9005-25-8) , And dextrin (Dextrin: CAS No. 9004-53-9).

The agrochemical granule according to the present invention can be manufactured such that the diameter of one grain is 1.5 mm or more and preferably 1.5 mm to 5 mm and can be treated with a power fertilizer spreader. Mixing and crushing of components → kneading → extrusion assembly through a perforated screen of at least 1.5 mm → drying → selection → packaging.

Specifically, the method for producing an agricultural chemical granule according to the present invention comprises: (a) a step of mixing and pulverizing an agricultural chemical active ingredient, a dispersant, and an expanding agent; A step of mixing the wetting agent with the mixture obtained in the first step and kneading with water (second step): a step of extruding the kneaded product obtained in the second step by means of an extrusion granulator equipped with a screen Third step); And a step of cutting and drying the molded article obtained in the third step (fourth step).

In the first step, when the agrochemical active ingredient, the diffusing agent, and the extender are mixed and pulverized, it is preferable to pulverize them to an average particle diameter of 50 microns or less by using a pulverizer.

The water to be added in the second step is added in an amount of 10 to 30 parts by weight based on 100 parts by weight of the total weight of the other raw materials used in the finally prepared agricultural chemical granules.

As the extrusion granulator used in the third step, a horizontal extrusion granulator or a basket-type extrusion granulator with a perforated screen of a diameter of one pesticide granule is used. It is preferable that the diameter of the one pellet of the agricultural chemical is 1.5 mm or more, more preferably 1.5 mm to 5 mm. The kneaded product is passed through a screen of an extrusion granulator to form a cylindrical shaped product having a predetermined diameter. The obtained cylindrical product is cut to an average length of 3.5 to 5.5 mm and then dried in a fluidized bed drier to a moisture content of 3 wt% Of the pesticide. Further, after drying, dust of 0.5 mm or more on the agrochemical granule phase is removed to prepare an agrochemical granular final product.

The agrochemical granule according to the present invention precipitates in water immediately without being floated on the surface when treated with non-nonson, so that the agrochemical active ingredient becomes a non-agglomerated pesticide active ingredient even in the presence of wind, algae, So that it is possible to exhibit uniform drug efficacy.

The pesticide granule according to the present invention is produced in the form of a uniform column or sphere having a diameter of 1.5 to 5 mm in one grain so that agricultural workers can hardly enter the mungon rather, it is possible by using a power fertilizer spreaders, and a spray can in rice pad by a distance of 20-25 meters, 1,000m ² (10a) spraying time is also greatly reduced within 8 minutes per effect.

In addition, since the pesticide granule according to the present invention can be produced by the extrusion assembly method, which is a general operating facility in the agrochemical industry, it is possible to reduce the burden on a new equipment and reduce the application amount per 1,000 m ² (10a) , It is possible to exert the biological effect by uniform diffusion of the active ingredient of the pesticide even at a weight of about 2 kg to 1 kg, thereby providing an agricultural chemical granule which can greatly reduce the burden on the agricultural worker who has to carry heavy pesticide.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart showing a method for producing an agricultural chemical granule of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

≪ Example 1 >

0.08 wt.% Of azimosulfuron, 4.5 wt.% Of bromobutide, 5.25 wt.% Of mefenacet, and sodium polyacrylate sodium salt (CAS NO. 9003- 04-7) and 30 wt% of bentonite were mixed and pulverized to an average particle size of 15 microns using a jet mill, and sodium tripolyphosphate (CAS No. 7758-29-4 ) And 53.97% by weight of talc were added and homogeneously mixed. 1.2 wt% of potassium polyoxyethylene lauryl ether phosphate (potassium salt: CAS NO. 58318-92-6) as a wetting agent was added, and 100 parts by weight of the other ingredients used in the preparation of the present agricultural chemical granule , 20 parts by weight of water was added, kneaded, and a pesticide granule in the form of a cylindrical cylinder having a diameter of 2.0 mm was formed in a basket-type extrusion granulator equipped with a 2.0 mm perforated screen. The obtained granules were cut to an average length of 4.5 mm, dried in a fluid bed drier to a moisture content of 3% or less, and dusts of 0.5 mm or less were removed to obtain final products. The finished agricultural chemical granules according to the present invention were 2.0 mm in diameter and 4.5 mm in average length and ² kg per 1,000 m ² (10 a).

≪ Example 2 >

(2-methyl-2-propenoic acid polymer with butyl 2-propenoate and ethenylbenzene, sodium salt: CAS NO: 2-propenoic acid polymer of ethyl 2-propenoate as a dispersant. 50885-72-8) and 1.2% by weight of sodium dodecyl sulfate (sodium salt (CAS NO. 151-21-3) as a wetting agent were used in the same manner as in Example 1 The finished pesticidal powder of the present invention was 2.0 mm in diameter, 4.5 mm in average length, and ² kg per 1,000 m ² (10 a).

≪ Example 3 >

3% by weight of a sodium salt of a condensate of methylnaphthalene formalin as a dispersant (Polycondensate of sodium methyl naphthalene and formaldehyde: CAS NO. 81065-51-2) and sodium dodecanol ethoxylated sulfate monoether (Dodecanol, monoether with sulfuric acid, sodium salt: CAS NO. 9004-82-4) was used in place of sodium chloride. The finished agricultural chemical granules according to the present invention were 2.0 mm in diameter and 4.5 mm in average length and ² kg per 1,000 m ² (10 a).

<Example 4>

(2-methyl-2-propenoic acid polymer with butyl 2-propenoate and ethenylbenzene, sodium salt: CAS NO: 2-propenoic acid polymer of ethyl 2-propenoate as a dispersant. (2-ethylhexyl) sulfosuccinate (CAS No. 577-11-7) as a wetting agent, and 2 wt% of ammonium sulfate as an inorganic salt. ) Was used in place of the above-mentioned catalyst. The finished agricultural chemical granules according to the present invention were 2.0 mm in diameter and 4.5 mm in average length and ² kg per 1,000 m ² (10 a).

&Lt; Example 5 >

(2-methyl-2-propenoic acid polymer with butyl 2-propenoate and sodium benzyl sulfonate: CAS NO 50885 (Dodecanol, ethoxylated, monoether with sulfuric acid, sodium salt: CAS NO. 9004-82-4) as wetting agent 1.2% by weight of ammonium sulfate as an inorganic salt 1.2% Was used in place of &quot;% by weight &quot;. The finished agricultural chemical granule of the present invention had a diameter of 3.0 mm and an average length of 4.5 mm and a spraying amount of ² kg per 1,000 m ² (10 a).

&Lt; Comparative Example 1 &

Except that 1.2 wt% of potassium polyoxyethylene lauryl ether phosphate (potassium salt: CAS No. 58318-92-6) was not used as a wetting agent and the content of talc was changed to 55.17% by weight. The finished pesticide granule had a diameter of 2.0 mm and an average length of 4.5 mm, and the application amount was ² kg per 1,000 m ² (10 a).

&Lt; Comparative Example 2 &

Except that 1.2 wt% of sodium dodecyl sulfate (sodium salt: CAS NO.151-21-3) was not used as a wetting agent and the content of talc was increased to 55.17 wt% . The finished pesticide granule had a diameter of 2.0 mm and an average length of 4.5 mm, and the application amount was ² kg per 1,000 m ² (10 a).

&Lt; Comparative Example 3 &

Except that 1.2 wt% of Dodecanol (ethoxylated, monoether with sulfuric acid, sodium salt: CAS NO. 9004-82-4) as a wetting agent was not used instead of talc By weight to 55.17% by weight. The finished pesticide granule had a diameter of 2.0 mm and an average length of 4.5 mm, and the application amount was ² kg per 1,000 m ² (10 a).

&Lt; Comparative Example 4 &

2-propenoic acid polymer with butyl 2-propenoate (2-methyl-2-propenoic acid) as a dispersant was prepared in the same manner as in Example 2, and ethenylbenzene, sodium salt: CAS No. 50885-72-8) was used instead of 3 wt%, but the content of talc was increased to 56.97 wt%. The finished pesticide granule had a diameter of 2.0 mm and an average length of 4.5 mm, and the application amount was ² kg per 1,000 m ² (10 a).

&Lt; Comparative Example 5 &

Except that 3 wt% of a sodium salt of methylnaphthalene formalin condensate (Polycondensate of sodium methyl naphthalene and formaldehyde: CAS NO. 81065-51-2) was used as a dispersing agent and ammonium sulfate 2 By weight and the content of talc was increased to 56.97% by weight. The finished pesticide granule had a diameter of 2.0 mm and an average length of 4.5 mm, and the application amount was ² kg per 1,000 m ² (10 a).

&Lt; Comparative Example 6 >

Except that 3 wt% of polyacrylic acid sodium salt (CAS NO. 9003-04-7) was not used as a diffusing agent but 2 wt% of ammonium sulfate as an inorganic salt and 2 wt% Was increased to 56.97% by weight. The finished pesticide granule had a diameter of 2.0 mm and an average length of 4.5 mm, and the application amount was ² kg per 1,000 m ² (10 a).

&Lt; Comparative Example 7 &

2-propenoic acid polymer with butyl 2-propenoate (2-methyl-2-propenoic acid) as a diffusing agent was prepared in the same manner as in Example 4, and ethenylbenzene, sodium salt: CAS No. 50885-72-8) was used instead of 3 wt%, and the content of talc was increased to 56.97 wt%. The finished pesticide granule had a diameter of 3.0 mm and an average length of 4.5 mm, and the application amount was ² kg per 1,000 m ² (10 a).

&Lt; Comparative Example 8: Appearance same as that of ordinary agricultural chemical granules >

The same procedure as in Example 1 was carried out except that the basket-type extrusion granulator had a screen hole of 0.8 mm. The finished pesticide granule had a diameter of 0.8 mm and an average length of 2 mm, and the application amount was ² kg per 1,000 m ² (10 a).

&Lt; Comparative Example 9: Water-borne pesticide granules >

3% by weight of surfactant olefin E1010 (polyoxyethylene acetylenic diol), 2% by weight of toxanone GR31-A (sodium polycarboxylate), water-suspended microsphere F-80 16 By weight and using 32.97% by weight of calcium carbonate instead of talc as an extender. The finished pesticide granule was a waterborne pesticide granule with a diameter of 1.5 mm and an average length of 2.5 mm, which was filled into a water-soluble film in an amount of 20 g per 1,000 m ² (10 a).

&Lt; Comparative Example 10 &

0.08% by weight of azimersulfuron, 4.5% by weight of bromovitabide, 5.25% by weight of mefenacet, and 25% by weight of bentonite, which are each in powder form as active ingredients of the agricultural chemical, were mixed and kneaded in a jet mill to give an average particle size of 15 microns, 3% by weight of STPP, 1.5% by weight of Dextrin and 58.17% by weight of talc were added thereto and homogeneously mixed again. Except that 2.5 wt% of EP4C (sodium bis (2-ethylhexyl) sulfosuccinate and ethylene glycol) was used as the wetting agent. The finished pesticide granule had a diameter of 2.0 mm and an average length of 4.5 mm, and the application amount was ² kg per 1,000 m ² (10 a).

The contents of the materials used in Examples 1 to 5 and Comparative Examples 1 to 10 are summarized in Table 1 and Table 2, respectively.

(Unit: wt%) division Example Comparative Example One 2 3 4 5 One 2 pesticide
activation
ingredient Azimusulfuron 0.08 0.08 0.08 0.08 0.08 0.08 0.08 Bromo viewtide 4.5 4.5 4.5 4.5 4.5 4.5 4.5 Mefenasset 5.25 5.25 5.25 5.25 5.25 5.25 5.25



Wet
Yun
My Sodium dodecyl sulfate ^{1 )} 1.2 Sodium dodecanol ethoxylated sulfate monoether ^{2 )}
1.2
1.2 Potassium polyoxyethylene lauryl ether phosphate ^{3 )}
1.2 Sodium bis (2-ethylhexyl) sulfosuccinate ^{4 )} 1.2


Sho
mountain
My Polyacrylic acid sodium salt ^{5 )} 3 3 Sodium salt of 2-methyl-2-propene acid polymer of butyl 2-propenoate and ethenylbenzene ⁶
3
3
3
3 Sodium salt of methyl naphthalene formalin condensate ^{7 )} 3
Symptom
Amount
My Ammonium sulfate 2 2 Sodium tripolyphosphate ^{8 )} 2 2 2 2 2 Bentonite 30 30 30 30 30 30 30 Talc 53.97 53.97 53.97 53.97 53.97 55.17 55.17 Exterior
Diameter (mm) 2 2 2 2 3 2 2 Length (mm) 4.5 4.5 4.5 4.5 4.5 4.5 4.5 1. CAS NO. 151-21-3: Dodecyl sulfate, sodium salt
2. CAS NO. 9004-82-4: Dodecanol, ethoxylated, monother with sulfuric acid,
sodium salt
3. CAS NO. 58318-92-6: Polyoxyethylene, lauryl ether phosphate, potassium salt
4. CAS NO. 577-11-7: Sodium bis (2-ethylhexyl) sulfosuccinate
5. CAS NO. 9003-04-7: Acrylic acid polymer, sodium salt
6. CAS NO. 50885-72-8: 2-Methyl-2-propenoic acid polymer with butyl 2-
propenoate and ethenylbenzene, sodium salt
7. CAS NO. 81065-51-2: Poycondensate of sodium methylnaphthalene and
formaldehyde
8. CAS NO. 7758-29-4: Sodium tripolyphosphate

(Unit: wt%) division Comparative Example 3 4 5 6 7 8 9 10 pesticide
activation
ingredient
Azimusulfuron 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 Bromo viewtide 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 Mefenasset 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25


Wet
Yun
My Sodium dodecyl sulfate ^{1 )} 1.2 Sodium dodecanol ethoxylated sulfate monoether ^{2 )}
1.2 Potassium polyoxyethylene lauryl ether phosphate ^{3 )}
1.2
1.2
1.2 Sodium bis (2-ethylhexyl) sulfosuccinate ^{4 )} 1.2 EP4C ^{a )} 2.5

Sho
mountain
My Polyacrylic acid sodium salt ^{5 )} 3 3 Sodium salt of 2-methyl-2-propene acid polymer of butyl 2-propenoate and ethenylbenzene ⁶⁾ Sodium salt of methyl naphthalene formalin condensate ⁷⁾ 3 Olfin E1010 ^{b )} 3 Tok Sannon GR31-A ^{c )} 2

Symptom
Amount
My Ammonium sulfate 2 2 2 Sodium tripolyphosphate ^{8 )} 2 2 2 2 3 Dextrin 1.5 Bentonite 30 30 30 30 30 30 30 25 Calcium carbonate 32.97 Talc 55.17 56.97 56.97 56.97 56.97 53.97 58.17 Micro Spare F-80 16 Exterior
Diameter (mm) 2 2 2 2 3 0.8 1.5 2 Length (mm) 4.5 4.5 4.5 4.5 4.5 2 2.5 4.5 1 to 8 (see Table 1)
a. Sodium bis (2-ethylhexyl) sulfosuccinate and ethylene glycol
b. Polyoxyethylene acetylene diol
c. Sodium polycarboxylate

Diffusion property, spreading distance, reduction in time required for spreading pesticide, diffusibility according to external environment of silkworm, and biological effect / weakness test were performed on the agricultural chemical granules obtained in the following Examples and Comparative Examples.

< Test Example  One : Diffusibility  Test>

The test 3-degree hardness water was filled 1 cm in height in a rectangular port having a width of 30 cm, a length of 40 cm and a height of 5 cm. Then, one pellet of the pesticide of Examples 1 to 5 and Comparative Examples 1 to 7 and 10 was placed in the center of the pot, And left under the conditions. As the pesticide particles disintegrate in the water, the phenomenon that they gradually diffuse into the concentric circles is observed with the naked eye (see the spread of the pesticide granules below). After 2 hours, the area ratio of the diffused concentric circle to the cross-sectional area of the original pesticide granule was obtained, and the results are shown in Table 3.

<Proliferation of pesticide granules>

× ℓ M ₁ = Cross-sectional area of pesticide granule (㎟) =

× ℓ

:농약입제의 지름, ℓ:농약입제의 길이)(

: Diameter of pesticide granule, ℓ: length of pesticide granule)

M ₂ = Area of diffused concentric circle (mm 2) = π [(a + b) / 4] ²

                   (a: short axis of concentric circles, b: long axis of concentric circles)

M = Area multiplication of diffused concentric circle = M ₂ ÷ M ₁

Diffusion test result Example Comparative Example One 2 3 4 5 One 2 3 4 5 6 7 10 M ₁ 9.0 9.0 9.0 9.0 13.5 9.0 9.0 9.0 9.0 9.0 9.0 13.5 9.0 M ₂ 1700.8 1724.4 1598.4 1579.5 2295.8 78.6 81.0 74.9 80.1 83.8 72.6 105.3 85.5 M 189.0 191.6 177.6 175.5 170.1 8.8 9.0 8.3 8.9 9.3 8.1 7.8 9.5 Average M 180.76 8.6 9.5

Examples 1 to 5 of the present invention have an average area of 180.76, which is 21 times as much as the average of 8.6 of Comparative Examples 1 to 7. EP4C is used as a humectant, but an area multiplier of 9.5 Which was 19 times or more higher than that of Comparative Example 10.

< Test Example  2: Spray distance measurement>

Place a power manure spreader with a displacement of 64.7 cc at a height of 63 cm from the ground. 2 kg of pesticide powder was put into the chemical tank, and the position of the shutter lever was set in the middle with the fertilizer spraying nozzle fixed at 45 degrees from the horizontal, and the pesticides of Examples 1 and 5 and Comparative Example 8 Spray the granules. The presence or absence of fugitive dust in the spraying process and the average distance of the pesticide drops dropped on the ground from the first power sprayer were measured and the results are shown in Table 4.

Spray distance measurement result Example 1 Example 5 Comparative Example 8 Diameter of pesticide powder 2 mm 3 mm 0.8 mm Average Spray Distance 25m 32m 7m Dust generation in scattering none none plenty

As can be seen in Table 4 above, the spreading distance by the powered fertilizer spreader was 25 m or more in Examples 1 and 5 and 7 m in Comparative Example 8, and the spraying distance was increased as the diameter of the pesticide powder was increased.

Therefore, when the size of one side is 40 m or more, it is difficult to spray using the conventional power sprayer in the paddy field because the spraying distance of the conventional pesticide-based granule of Comparative Example 8 is short, whereas Examples 1 and 5 of the pesticide- So that the operator does not need to go inside the rice paddies to spray the pesticide. In addition, there is an advantage in that stability of the operator is secured because there is no generation of scattered dust when the pesticide is added.

< Test Example  3: Test to reduce time required for spraying pesticide>

The agrochemical granules of Example 1 and Comparative Example 8 were sprayed to a farmer skilled in spraying the pesticide on a munition of 1,000 m ² (10a), and the completion time was measured. The results are shown in Table 5.

Time required for pesticide application How to spray pesticide Pesticide application amount / 1,000m ² Spray completion time Example 1 Using power fertilizer spreader 2kg 7 minutes Comparative Example 8 Hand spray 2kg 35 minutes

As can be seen from the above Table 5, the time required for spraying the pesticide of the present invention in Example 1 was 7 minutes, which was 80% less per 1,000 m ² than that of Comparative Example 8, .

< Test Example  4: Depending on the external environment of Munnon Diffusibility  Test>

<4-1. Windy Diffusibility >

^Two water tanks each having a width of 1 m and a length of 20 m (1 m × 20 m = 20 m ² ) were filled with water at a height of 10 cm and an artificial wind of an average wind speed of 4 m / sec was blown in the opposite corner direction from the starting point of the water tank. 40g (equivalent to 2kg per 1,000 m ² (10a)) of the pesticide granule of Example 1 was evenly distributed throughout the water tank (the same phenomenon as spreading 2kg of pesticide granule by using a manure spreader in the brook) The water-borne pesticide granules of Example 9 were poured onto two water-soluble film pouches filled with 20 g (corresponding to 2 kg per 1,000 m ² (10 a)) at the start of the water tank. Water at 1, 5, 10, and 15 m from the starting point of the water tank after 6 hours, 12 hours and 24 hours after spraying were analyzed to analyze the active ingredients of the pesticide.

Concentration distribution of pesticide active ingredient by time after time
(Unit: ppm) Azimusulfuron Bromo viewtide Mefenasset Example 1 After 6 hours Concentration at 1m point 0.009 0.789 1.065 Concentration at 5 m point 0.012 0.821 1.021 Concentration at 10 m 0.010 0.945 1.048 Concentration at 15 m 0.017 0.956 1.087 After 12 hours Concentration at 1m point 0.013 0.869 1.058 Concentration at 5 m point 0.012 0.851 1.037 Concentration at 10 m 0.017 0.899 1.257 Concentration at 15 m 0.016 0.907 1.295 After 24 hours Concentration at 1m point 0.014 0.879 1.023 Concentration at 5 m point 0.014 0.884 1.007 Concentration at 10 m 0.016 0.875 1.047 Concentration at 15 m 0.018 0.911 1.115 Comparative Example 9










After 6 hours Concentration at 1m point 0.001 0.004 0.007 Concentration at 5 m point 0.005 0.021 0.321 Concentration at 10 m 0.038 1.450 1.645 Concentration at 15 m 0.054 1.504 2.354 After 12 hours Concentration at 1m point 0.002 0.005 0.003 Concentration at 5 m point 0.004 0.034 0.410 Concentration at 10 m 0.059 1.520 1.784 Concentration at 15 m 0.078 1.931 2.430 After 24 hours


Concentration at 1m point 0.002 0.003 0.007 Concentration at 5 m point 0.005 0.054 0.310 Concentration at 10 m 0.069 1.856 2.065 Concentration at 15 m 0.083 2.214 2.801
* When each test agent is completely uniformly diffused at a depth of 10 cm, the theoretical concentration:
0.016 ppm Azimulfuron, 0.9 ppm of Bromobutide, 1.05 ppm of Mepenase

As shown in the above test results, the pesticide granule of Example 1 of the present invention was spread in the windy weather condition even after 12 hours from the theoretical diffusion concentration, Most of them have been done.

However, in Comparative Example 9, the pesticide granules floated on the water surface concentrated in the opposite direction of the wind, and even after 24 hours after the spraying, they did not spread uniformly over the entire area but accumulated at a concentration higher than the theoretical diffusion concentration at a point after 10 m, Is not achieved.

<4-2. By floats Diffusibility >

^Two water tanks each having a width of 1 m and a length of 20 m (1 m x 20 m = 20 m ² ) were filled with water to a height of 10 cm and 6 kg of dried rice husks cut at an average of 2 cm were uniformly distributed on the water surface. (Equivalent to ² kg per 1,000 m ² (10 a)) was evenly distributed throughout the water tank (the same phenomenon as spreading 2 kg of pesticide granule on the plow using a powered fertilizer spreader), the surface pesticide granulation of Comparative Example 9 ( ² kg per 1,000 m ² (10 a)) of 20 g water-sealed film pouches were thrown at the start of the tank. Water at 1, 5, 10, and 15 m from the starting point of the water tank after 6 hours, 12 hours, and 24 hours after spraying was collected and the active ingredients of the pesticide were analyzed and shown in Table 7.

                          Concentration distribution of active ingredients of pesticide by time after time (unit: ppm) Azimusulfuron Bromo viewtide Mefenasset





Example 1 After 6 hours Concentration at 1m point 0.012 0.910 1.045 Concentration at 5 m point 0.014 0.875 1.059 Concentration at 10 m 0.017 0.908 1.078 Concentration at 15 m 0.019 0.912 1.087 After 12 hours Concentration at 1m point 0.016 0.904 1.077 Concentration at 5 m point 0.017 0.951 1.050 Concentration at 10 m 0.014 0.924 1.036 Concentration at 15 m 0.013 0.908 1.042 After 24 hours Concentration at 1m point 0.014 0.911 1.052 Concentration at 5 m point 0.017 0.921 1.048 Concentration at 10 m 0.016 0.931 1.054 Concentration at 15 m 0.015 0.909 1.058




Comparative Example 9
After 6 hours Concentration at 1m point 0.212 6.321 7.354 Concentration at 5 m point 0.018 3.245 4.214 Concentration at 10 m 0.004 0.610 0.652 Concentration at 15 m Not detected 0.024 0.054 After 12 hours Concentration at 1m point 0.195 6.028 7.210 Concentration at 5 m point 0.010 2.946 4.015 Concentration at 10 m 0.007 0.010 0.741 Concentration at 15 m 0.002 0.012 0.710 After 24 hours


Concentration at 1m point 0.168 5.014 6.852 Concentration at 5 m point 0.097 2.987 3.054 Concentration at 10 m 0.009 0.120 0.854 Concentration at 15 m 0.005 0.101 0.752 * When each test agent is completely uniformly diffused at a depth of 10 cm, the theoretical concentration:
0.016 ppm Azimulfuron, 0.9 ppm of Bromobutide, 1.05 ppm of Mepenase

It can be said that most of the pesticide active ingredient diffusion was performed after 12 hours even after spraying in the environment where the float suspended in water existed in the pesticide formulation of Example 1 according to the present invention, in the vicinity of the theoretical diffusion concentration.

However, in the case of Comparative Example 9, which is a water-borne pesticide, the pesticide floating on the water surface is not uniformly diffused over the entire area even after 24 hours due to the float, and only the water is diffused locally only within 5 m from the spraying point, Are concentrated at a higher concentration than the theoretical diffusion concentration, and the possibility of the occurrence of the fungus is very high.

< Test Example  5: Drug and Phytotoxicity Test>

In order to perform the phytotoxicity and the phytotoxicity test of the pesticide granule of the present invention, annual pest weeds such as blood, water barnacles, mosquito, gabbrosari, and marihuana were selected and perennial weeds such as mugwort, mugwort and tadpole mugwort. The area of each test plant was divided into 20 m 2 (5 m × 4 m), and the chuchung rice was machine-transplanted. Cultivation methods were as shown in Table 8. 15 days after transplantation for the pharmacodynamic and phytotoxicity tests Each of the test pods was treated with the agricultural chemical granules of the above-mentioned Examples and Comparative Examples as shown in Table 9. The efficacy was investigated 40 days after the treatment, and we selected 2 sites with uniform weed occurrence in the test area. The weed was extracted using a 50cm × 50cm quadrat, And the control value was calculated by the method of calculation (comparison between the buildings of the chemical treatment area versus the non-treatment area). The weaknesses were examined 4 times after 10 days, 20 days, 30 days and 40 days after the treatment, respectively. Judgment of weakness was 0 (weak), 1 (slight) 3) There is no significant effect on the yield but there is no significant difference in the yield. 3) When there is no symptoms, ), 4 (when the recovery is uncertain or the yield of less than 5% is expected), 5 (when the recovery is suspected and the yield is estimated to be about 10%), , 6 (expected to be about 15%), 7 (expected to be 20% when the weakest is expected), 8 (when the weakness is expected to be about 30% (When the severity of the disease is expected to be over 50%). The results are shown in Table 11.

How to grow Cultivation form sowing
Time Seeding rate
(g / box) harrowing a field Transition time
(Month / day) Planting distance
(cm) Fertility (kg / 10a)
NP ₂ O ₅ -K ₂ O Fresh water
(cm) Young rice
Machine transfer answer May 14 200 May 21 May 23 2514 11-7-8 5

When and how to treat medicines Test agent When and how to process Drug efficacy test Weak test The reference amount (g) The reference amount (g) Dose (g) Example 1 15 days after migration 40g 40g 80g Example 2 Synthesis Synthesis Synthesis Synthesis Example 3 Synthesis Synthesis Synthesis Synthesis Example 4 Synthesis Synthesis Synthesis Synthesis Example 5 Synthesis Synthesis Synthesis Synthesis Comparative Example 1 Synthesis Synthesis Synthesis Synthesis Comparative Example 2 Synthesis Synthesis Synthesis Synthesis Comparative Example 3 Synthesis Synthesis Synthesis Synthesis Comparative Example 4 Synthesis Synthesis Synthesis Synthesis Comparative Example 5 Synthesis Synthesis Synthesis Synthesis Comparative Example 10 Synthesis Synthesis Synthesis Synthesis Hand herb - - - - No treatment - - - -

The control ^* Annual weeds Perennial weeds blood Turned Water tiller Kaemari Japonica Follicle A blast Tadpole Example 1 100 99.8 94.8 100 100 100 100 97.8 Example 2 99.5 100 95.6 100 99.3 99.8 100 99.8 Example 3 100 99.5 94.0 100 100 100 99.1 99.9 Example 4 100 99.0 96.7 100 100 99.7 98.9 99.2 Example 5 100 100 94.6 100 98.8 99.7 99.6 100 Comparative Example 1 85.6 83.5 80.5 72.6 76.2 69.8 79.5 79.3 Comparative Example 2 80.7 82.9 79.6 74.8 75.9 75.8 80.4 82.5 Comparative Example 3 75.9 84.5 74.6 75.5 78.2 68.9 81.5 84.6 Comparative Example 4 78.6 83.9 73.8 76.6 72.6 72.4 83.0 76.2 Comparative Example 5 76.9 85.2 72.8 74.2 71.4 70.9 79.6 74.9 Comparative Example 10 77.9 84.5 76.6 76.1 76.8 74.4 78.8 73.1 Handicaps 95.8 93.3 94.4 93.1 100 96.4 82.4 92.7 No treatment - ^** - - - - - - -
* Control (%) = {1- (Total weed in the treatment / total treatment in the treatment area)} × 100
** -: No control

Weak Pharmaceutical treatment After 10 days After 20 days 30 days later After 40 days Example 1 Standard amount 0 0 0 0 Volume 0 0 0 0 Example 2 Standard amount 0 0 0 0 Volume 0 0 0 0 Example 3 Standard amount 0 0 0 0 Volume 0 0 0 0 Example 4 Standard amount 0 0 0 0 Volume 0 0 0 0 Example 5 Standard amount 0 0 0 0 Volume 0 0 0 0 Comparative Example 1 Standard amount 2 One One One Volume 2 3 3 2 Comparative Example 2 Standard amount 2 2 2 2 Volume 4 3 2 3 Comparative Example 3 Standard amount 3 2 2 One Volume 4 3 3 2 Comparative Example 4 Standard amount One 2 2 One Volume 3 3 3 2 Comparative Example 5 Standard amount 2 3 3 2 Volume 3 3 4 3  Comparative Example 10 Standard amount 2 2 2 One Volume 4 3 3 2 Handicaps - none none none none

As can be seen from the above Tables 10 and 11, the agricultural chemical granules of Examples 1 to 5 according to the present invention had higher efficacy against annual and perennial weeds than the agricultural chemical granules of Comparative Examples 1 to 10, And there was an effect that no weakening occurred at all.

Claims (9)

An agrochemical granule molded by mixing an agrochemical active ingredient, a wetting agent, a spreading agent, and an extender,
Wherein the wetting agent is at least one anion interface selected from the group consisting of sodium dodecanol ethoxylated sulfate monoether, potassium polyoxyethylene lauryl ether phosphate, dodecyl alcohol ethoxylated phosphate and sodium bis (2-ethylhexyl) sulfosuccinate Active agent;
Wherein the dispersing agent is at least one polymer selected from the group consisting of sodium salt of polyacrylic acid sodium salt, butyl 2-propenoate, sodium salt of 2-methyl-2-propene acid polymer of ethenylbenzene, and sodium salt of methylnaphthalene formalin condensate A surfactant;
Wherein the extender is at least one of an inorganic salt and a water-insoluble substance. The method according to claim 1,
Wherein the agrochemical granule is prepared by mixing 0.1 to 50% by weight of an agrochemical active ingredient, 0.1 to 5% by weight of a wetting agent, 0.5 to 10% by weight of a dispersing agent, and 40 to 90% . delete delete 3. The method according to claim 1 or 2,
Wherein the inorganic salt is at least one selected from the group consisting of sodium tripolyphosphate, ammonium sulfate, potassium chloride, and magnesium chloride. 3. The method according to claim 1 or 2,
Wherein the water insoluble material is at least one selected from the group consisting of clay, bentonite, talc, calcium carbonate, kaolin, feldspar, acid clay, silica, zeolite, pearlite, vermiculite, attapulgite, diatomaceous earth, By weight or more. 3. The method according to claim 1 or 2,
The agricultural chemical granule may further comprise at least one binder selected from the group consisting of sodium lignosulfonate or potassium salt, polyvinyl alcohol, polyvinyl acetate, carboxymethyl cellulose (CMC), guar gum, gum arabic, starch, and dextrin Wherein the agrochemical granule is added. 3. The method according to claim 1 or 2,
Wherein the agrochemical granule has a particle diameter of 1.5 mm to 5 mm and can be treated with a power fertilizer spreader. A process for producing an agricultural chemical granule according to any one of claims 1 to 3,
A step of mixing and pulverizing the agricultural chemical active ingredient, the dispersing agent, and the extender (first step);
A step of mixing a wetting agent into the mixture obtained in the first step and kneading with adding water (second step):
A step of extruding the kneaded product obtained in the second step by using an extrusion granulator with a screen (third step);
And a step of cutting and drying the molded article obtained in the third step (fourth step).

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