Agricultural fungicide composition

Abstract

This invention provides an agricultural fungicide composition that exhibits good disintegration properties in water, high dispersion stability, and is useful as an agricultural material. [Solution] An agricultural fungicide composition containing (1) fursulfamide, (2) naphthalene sulfonic acid-formaldehyde condensate or a salt thereof, (3) dialkyl sulfosuccinic acid or a salt thereof, and (4) polycarboxylic acid or a salt thereof. Furthermore, an agricultural fungicide composition in which the salt of (2) naphthalene sulfonic acid-formaldehyde condensate and the salt of (3) dialkyl sulfosuccinic acid are sodium salts.

Description

Technical Field

[0001] The present invention relates to an agricultural fungicide composition having good disintegratability and dispersibility in water.

Background Art

[0002] An agricultural fungicide composition used for agriculture such as a fungicide is a granule that completely and easily disperses in water, and is an agricultural chemical preparation that is superior in terms of ease of handling, ease of weighing, dust prevention, and simplicity of application compared to conventional wettable powders. However, when formulated into granules as it is using the formulation of a conventional wettable powder, there are various problems such as not easily disintegrating in water and not being able to obtain a stable dispersion liquid.

[0003] In order to improve this problem, for example, Patent Document 1 discloses a granule wettable powder in which a polycarboxylic acid-based surfactant or a formalin condensate of an aromatic sulfonic acid derivative or a salt thereof is combined with a lignin sulfonate. This technology aims to obtain a granule wettable powder having good water disintegratability and water dispersibility in order to more efficiently exhibit the excellent herbicidal ability of a sulfonylurea compound.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] On the other hand, in an agricultural composition such as a fungicide, it is preferable that the disintegratability and dispersibility in water be as high as possible, and higher performance than the prior art is strongly demanded.

[0006] This invention has been made in view of the above circumstances, and its purpose is to provide an agricultural fungicide composition that has good disintegration properties in water, high dispersion stability, and is useful as an agricultural material. [Means for solving the problem]

[0007] The inventors, in an effort to solve the above-mentioned problems, conducted diligent research and, as a result, unexpectedly succeeded in imparting good disintegrability and dispersibility in water by incorporating fursulfamide, naphthalene sulfonic acid-formaldehyde condensate or its salt, dialkyl sulfosuccinic acid or its salt, and polycarboxylic acid or its salt. Based on this finding, the inventors conducted further research and, as a result, completed the present invention.

[0008] In other words, in order to solve the above problems, the present invention includes the following embodiments. [1](1) Fursulfamide and, (2) Naphthalene sulfonic acid-formaldehyde condensate or a salt thereof, (3) Dialkyl sulfosuccinic acid or a salt thereof, (4) Polycarboxylic acids and their salts, An agricultural fungicide composition containing [the specified ingredient]. [2] The agricultural fungicide composition according to [1], wherein the salt of the naphthalene sulfonic acid-formaldehyde condensate in (2) is a sodium salt. [3] The agricultural fungicide composition according to [1], wherein the salt of the dialkyl sulfosuccinic acid in (3) is a sodium salt. [4] The agricultural fungicide composition according to [1], wherein the salt of the polycarboxylic acid in (4) is a sodium salt. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide an agricultural fungicide composition that has good disintegration properties in water, high dispersion stability, and is useful as an agricultural material. [Modes for carrying out the invention]

[0010] The agricultural fungicide composition according to the present invention will be described below with reference to embodiments. However, the present invention is not limited to the following embodiments. In this specification, when a numerical range is described as "number ~ number," for example "1 ~ 10," unless otherwise specified, it means a range of "1 or more and 10 or less," including the lower limit of 1 and the upper limit of 10. Furthermore, below, "part" may simply be used to mean "parts by mass."

[0011] The agricultural fungicide composition of this embodiment is (1) Fursulfamide and, (2) Naphthalene sulfonic acid-formaldehyde condensate or a salt thereof, (3) Dialkyl sulfosuccinic acid or a salt thereof, (4) Polycarboxylic acids and their salts, It contains.

[0012] [(1) Ingredients: Active ingredients] (1) The component fursulfamide is included as the active ingredient of the fungicide in the agricultural fungicide composition of this embodiment. Fursulfamide (C 13 H7C l2 F3N4O4S) (CAS Registry Number: 106917-52-6) is already known as a fungicide component applied to root-knot disease in vegetables, and in this embodiment, it can be used with conventionally known manufacturing and preparation methods and usage.

[0013] (1) The content of component fursulfamide can be selected such that, when the agricultural fungicide composition of this embodiment is formulated as a granular solid preparation as described later, component (1) accounts for 15 to 60% by mass of 100% of the total mass of the agricultural fungicide composition. More preferably, it is 20 to 40% by mass, and around 30% by mass is particularly preferred.

[0014] [(2) Ingredients: Dispersant] (2) The naphthalene sulfonic acid-formaldehyde condensate is contained as a dispersant in the agricultural fungicide composition of the present embodiment. The naphthalene sulfonic acid-formaldehyde condensate broadly includes those obtained by polymerizing naphthalene sulfonic acid through a condensation reaction with formaldehyde. Also, in the present embodiment, salts thereof can be used as the component (2). The salts are not particularly limited, and examples include calcium salts, sodium salts, lithium salts, and potassium salts. Particularly preferred is the sodium salt.

[0015] When formulating the composition into granules, the content of the naphthalene sulfonic acid-formaldehyde condensate or its salt as the component (2) can be selected such that the component (2) is 2.5 to 10% by mass based on the total mass of 100% of the agricultural fungicide composition. More preferably, it is 4 to 6% by mass, and around 5% by mass is particularly preferred.

[0016] [Component (3): Surfactant] The dialkyl sulfosuccinic acid as the component (3) is contained as a surfactant in the agricultural fungicide composition of the present embodiment. In the present embodiment, salts of dialkyl sulfosuccinic acid can also be used. The salts are not particularly limited as long as they are salts of the sulfonic acid group, and examples include ester salts and metal salts. Particularly preferred is the metal salt.

[0017] When formulating the composition into granules, the content of the dialkyl sulfosuccinic acid or its salt as the component (3) can be selected such that the component (3) is 1.5 to 6% by mass based on the total mass of 100% of the agricultural fungicide composition. More preferably, it is 2 to 4% by mass, and around 3% by mass is particularly preferred.

[0018] [Component (4): Surfactant] The polycarboxylic acid as the component (4) is contained as a surfactant different from the component (3) in the agricultural fungicide composition of the present embodiment. The polycarboxylic acid is not particularly limited as long as it is an organic acid having two or more carboxyl groups, and examples include polymers or copolymers thereof of malic acid, citric acid, phthalic acid, oxalic acid, aconitic acid, or acrylic acid. In this embodiment, a salt thereof can also be used as component (4). The salt is not particularly limited and examples include metal salts. Preferably, it is a metal salt. Particularly preferred is a sodium salt among metal salts.

[0019] (4) The content of the polycarboxylic acid or salt of component (4) can be selected such that, when formulated as granules, component (4) is 0.5 to 2% by mass of 100% of the total mass of the agricultural fungicide composition. More preferably, it is 0.8 to 1.2% by mass, and around 1% by mass is particularly preferred.

[0020] [Other ingredients] In addition to the components (1) to (4) of this embodiment, the agricultural fungicide composition may also have other components added as appropriate. For example, other auxiliary agents can be added for various purposes. As auxiliary agents, for example, other active ingredients (pesticide active ingredients) other than (1), other surfactants other than (2) to (4), thickeners, defoamers, fungicides, solvents or stabilizers, i.e., auxiliary components such as colorants, fillers, preservatives, and pH adjusters can be added. Furthermore, hydrochloric acid may or may not be included in a formulationable amount, for example, for purposes such as pH adjustment.

[0021] For example, other ingredients that can be used include bulking agents and grinding aids. The bulking agent may include calcium carbonate, silicon dioxide, etc. The amount contained may be the remaining amount after removing the amount of other components from the total mass, for example, in order to adjust the ratio of other components. The grinding aid may include silicon dioxide. When silicon dioxide is used as a grinding aid, the amount of silicon dioxide can be selected from 2.0 to 8.6% by mass relative to 100% of the total mass of the agricultural fungicide composition. More preferably, it is 3 to 5% by mass, and around 5.3% by mass is particularly preferred.

[0022] The agricultural fungicide composition of this embodiment may use any surfactant other than (3) and (4), such as a nonionic surfactant, a cationic surfactant, or an amphoteric surfactant, and one or more of these may be used.

[0023] Examples of nonionic surfactants include aliphatic alcohol alkylene oxide adducts, polyalkylene oxy fatty acid esters, sorbitan-based surfactants or their alkylene oxide adducts, polyglycerin fatty acid esters, alkyl polysaccharide-based surfactants, sucrose glycerides, polyoxyalkylene alkyl ethers, polyoxyethylene alkyl ethers, polyoxyalkylene alkylaryl ethers, polyoxyalkylene alkylphenol ethers, polyoxyalkylene styrylphenol ethers, polyoxyalkylene distyrylphenol ethers, or polyoxyalkylene toristyrylphenol ethers. Preferably, these include polyoxyalkylene alkyl ethers, polyoxyethylene alkyl ethers, polyoxyalkylene alkylaryl ethers, polyoxyalkylene alkylphenol ethers, polyoxyalkylene styrylphenol ethers, polyoxyalkylene distyrylphenol ethers, or polyoxyalkylene toristyrylphenol ethers. Furthermore, these surfactants with added ethylene oxide may contain propylene oxide as part of their composition.

[0024] Examples of cationic surfactants include aliphatic tertiary amines or their salts, aliphatic tertiary amine alkylene oxide adducts or their salts, or aliphatic quaternary amine salts.

[0025] Examples of amphoteric surfactants include amino acid-type amphoteric surfactants such as sodium laurylaminopropionate; carboxylate-type amphoteric surfactants such as betaine-type amphoteric surfactants such as lauryldimethylbetaine, stearyldimethylbetaine, and lauryldihydroxyethylbetaine; sulfate-type amphoteric surfactants; sulfonate-type amphoteric surfactants; or phosphate-type amphoteric surfactants.

[0026] If the agricultural fungicide composition of this embodiment contains other surfactants, the amount thereof may be, for example, 0.01 to 20% by weight of the total amount of the agricultural fungicide composition, and preferably 0.1 to 10% by weight.

[0027] Other components included in the agricultural fungicide composition of this embodiment include, for example, thickeners that are not particularly limited as long as they are commonly used in agricultural chemical formulations, such as minerals like white carbon, aluminosilicate, bentonite, montmorillonite, hectorite, and attapulgite, or polymeric thickeners such as gum arabic, tragacanth gum, xanthan gum, guar gum, roasted bean gum, casein, alginic acid, cellulosic polysucrose, ethylcellulose, polyvinyl alcohol, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, and carboxymethylcellulose. Polymeric thickeners are preferred, and xanthan gum is more preferred.

[0028] There are no particular limitations on the type of defoaming agent used in agricultural chemical formulations, but examples include: lower alcohol-based defoaming agents such as methanol, ethanol, isopropanol, sec-butanol, and butanol; organic polar compound-based defoaming agents such as amyl alcohol, diisobutyl carbitol, tributyl phosphate, oleic acid, tall oil, metal soap, low HLB surfactants (e.g., sorbitan laurate monoester, sorbitan laurate triester, polyethylene glycol fatty acid ester, acetylene glycol derivatives, Pluronic® type nonionic surfactants, etc.), and acetylene glycol derivatives; mineral oil-based defoaming agents such as mineral oil surfactant formulations and mineral oil and fatty acid metal salt surfactant formulations; and silicone resin-based defoaming agents such as silicone resin, silicone resin surfactant formulations, and silicone resin inorganic powder formulations.

[0029] As for fungicides, there are no particular limitations as long as they are commonly used in pesticide formulations, but examples include parachlorometaxylenol, polyhesamethylene biguanidide hydrochloride, 1,2-benzisothiazolin-3-one, methyl parahydroxybenzoate, ethyl parahydroxybenzoate, propyl parahydroxybenzoate, butyl parahydroxybenzoate, heptyl parahydroxybenzoate, benzyl parahydroxybenzoate, parahydroxybenzoate, sorbic acid, orthophenylphenol, sodium orthophenylphenate, glutardialdehyde, quaternary ammonium compounds, tri-(N-chloro) Examples include hexyldiazenium dioxy)-aluminum, tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thion, 2,5-dimethoxytetrahydrofuran, dimethylolurea, sodium N-methyldithiocarbamate, phenoxyethanol, glyoxal, glutaraldehyde, 1,3,5-tris(2-hydroxyethyl)-1,3,5-hexahydrotriazine, benzalkonium chloride, phenoxypropanol, tetramethylacetylenediurea, povidone iodine, potassium sorbate, 2-bromo-2-nitropropane-1,3-diol, thiazolon, and organic nitrogen sulfur-based complexes.

[0030] As for the solvent, there are no particular limitations as long as it is one that is normally used in pesticides, but it is preferable to use one that has a flash point of Class 2 petroleum or higher. Examples include alkylbenzene, methylnaphthalene, liquid paraffin, ligroin, kerosene, lamp oil, n-decane, isododecane, tetralin, decalin, turpentine oil, pine oil, adipic acid, gluconic acid, maleic acid, lactic acid, benzoic acid, phthalic acid, malic acid, fumaric acid, succinic acid, tartaric acid, citric acid, lauric acid, oleic acid, coconut oil fatty acids, cyclohexanone, cyclohexenylcyclohexanone, acetylacetone, acetophenone, methyl butyl ketone, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, epichlorhydrin, diglycidyl ethere, dioxane, triethyl phosphate, tributyl phosphate, soybean oil, rapeseed oil, sesame oil, rice oil, coconut oil, sunflower oil, sardine oil, whale oil, dimethyl sulfoxide, N,N-dimethylacetamide, or N-methylpyrrolidone.

[0031] The coloring agent is not particularly limited as long as it is commonly used in pesticides. Examples include pigments, preferably Brilliant Blue FCF, Cyanine Green G, or Elio Green G. The amount of coloring agent used is usually 0.05 to 0.5% by weight in the agricultural fungicide composition, preferably 0.1 to 0.3% by weight.

[0032] The preservative used is not particularly limited as long as it is one that is commonly used in agricultural chemicals, and is preferably sorbic acid, potassium sorbate, parachlorometaxylenol, butyl parahydroxybenzoate, or sodium dehydroacetate. The amount of preservative used is usually 0.1 to 3% by weight, preferably 0.2 to 2% by weight, in the agricultural fungicide composition.

[0033] The pH adjusting agent is not particularly limited as long as it is commonly used in pesticides. Examples include inorganic acids such as phosphoric acid; organic acids such as citric acid, phthalic acid, and succinic acid; organometallic salts such as sodium citrate and potassium biturethane phthalate; inorganic metal salts such as disodium hydrogen phosphate, dihydrogen dihydrogen phosphate, dipotassium hydrogen phosphate, dipotassium hydrogen phosphate, sodium carbonate, potassium carbonate, and sodium borate; hydroxides such as sodium hydroxide and potassium hydroxide; or organic amines such as triethanolamine. Preferably, the pH adjusting agent is an inorganic acid, an inorganic metal salt, or a hydroxide, and more preferably, hydrochloric acid, citric acid, succinic acid, sodium hydroxide, potassium hydroxide, or sodium carbonate. In addition, one or more pH adjusting agents may be used in combination.

[0034] While there are no particular limitations on the dosage form of the agricultural fungicide composition of this embodiment, the components of this embodiment are particularly suitable for formulation in granular form and used as a water dispersible granule. The granular form and other aspects can be appropriately selected based on conventional manufacturing techniques for water dispersible granules.

[0035] [Method for producing agricultural fungicide compositions] Next, a method for producing the agricultural fungicide composition of this embodiment will be described. The agricultural fungicide composition of this embodiment of the present invention can be produced by known formulation processes such as mixing and grinding, which are used in the production of ordinary pesticide formulations.

[0036] For example, an optional component such as a bulking agent or grinding aid is added to the active ingredient of component (1), and dry grinding is performed to obtain a premix (PM). Components (2) to (4), and any optional component (e.g., a bulking agent) as appropriate are added to the obtained premix, and operations such as mixing, kneading, granulation, drying, and sieving are performed as appropriate to obtain the agricultural fungicide composition of this embodiment in the form of granular hydrate. Dry grinding, stirring equipment, granulators, etc., used in the production of granular hydrates can be used as appropriate for these operations.

[0037] [Uses of agricultural fungicide compositions] The agricultural fungicide composition of this embodiment can be used, for example, to kill bacteria and control crop diseases caused by pathogens in Solanaceae (potatoes, etc.) and Brassicaceae plants. For example, it can be used to treat powdery scab, a disease of potatoes, and clubroot, a disease of Brassicaceae vegetables.

[0038] When using the agricultural fungicide composition of this embodiment, the method of use can be the conventional methods generally used for spraying pesticides. For example, the granular hydrate agricultural fungicide composition of this embodiment may be sprayed as is, or it may be diluted with water before spraying. For example, the agricultural fungicide composition may be diluted with water and used as an aqueous composition. When diluting the granular hydrate agricultural fungicide composition to produce an aqueous composition containing a pesticide liquid, in addition to the water mentioned during preparation, agricultural water, industrial water, well water, tap water, etc., can be used as long as they do not impair the function or performance of the pesticide liquid. The dilution ratio when preparing the aqueous composition can be appropriately selected depending on the crop, soil, etc., to be used, but it can be done from 10 to 5000 times, preferably from 50 to 2000 times. The application method can be the same as that used for ordinary agricultural fungicide compositions, and can include, for example, aerial spraying, soil spraying, foliar spraying, seedling tray spraying, side application, or seed treatment.

[0039] Although embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be modified in various ways. [Examples]

[0040] The effects of the present invention will be further clarified by the following examples and comparative examples. It should be noted that the present invention is not limited to the following examples, and can be implemented with appropriate modifications without altering its essence.

[0041] (Example 1) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and pulverized using a dry-type fluidized bed jet mill, Air Mill JET·O·MIZER 0101 (Seishin Corporation) to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, and 31.18 parts of calcium carbonate were charged into a mixing device, Mighty Mixer MT-25H (Aikousha Seisakusho Co., Ltd.), mixed, and then an appropriate amount of water was added to knead the mixture. The resulting mixture was extruded and granulated using an extrusion granulator, Basket Luzer BR-150 (Dalton Corporation), through a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0042] (Example 2) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and ground using an Air Mill JET·O·MIZER 0101 to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, 1 part of Selogen 5A, and 30.18 parts of calcium carbonate were charged into a Mighty Mixer MT-25H, mixed, and then kneaded with an appropriate amount of water. The resulting mixture was extruded and granulated using an extrusion granulator Basket Luzer BR-150 with a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0043] (Example 3) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and ground using an Air Mill JET·O·MIZER 0101 to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, 2 parts of Selogen 5A, and 29.18 parts of calcium carbonate were charged into a Mighty Mixer MT-25H, mixed, and then kneaded with an appropriate amount of water. The resulting mixture was extruded and granulated using an extrusion granulator Basket Luzer BR-150 with a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0044] (Example 4) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and ground using an Air Mill JET-O-MIZER 0101 to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, 3 parts of Selogen 5A, and 28.18 parts of calcium carbonate were charged into a Mighty Mixer MT-25H, mixed, and then kneaded with an appropriate amount of water. The resulting mixture was extruded and granulated using an extrusion granulator Basket Luzer BR-150 with a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0045] (Example 5) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and ground using an Air Mill JET-O-MIZER 0101 to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, 1 part of Selogen 6A, and 30.18 parts of calcium carbonate were charged into a Mighty Mixer MT-25H, mixed, and then kneaded with an appropriate amount of water. The resulting mixture was extruded and granulated using an extrusion granulator Basket Luzer BR-150 with a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0046] (Example 6) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and ground in an Air Mill JET·O·MIZER 0101 to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, 2 parts of Selogen 6A, and 29.18 parts of calcium carbonate were charged into a Mighty Mixer MT-25H, mixed, and then kneaded with an appropriate amount of water. The resulting mixture was extruded and granulated using an extrusion granulator Basket Luzer BR-150 with a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0047] (Example 7) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and ground using an Air Mill JET·O·MIZER 0101 to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, 3 parts of Selogen 6A, and 28.18 parts of calcium carbonate were charged into a Mighty Mixer MT-25H, mixed, and then kneaded with an appropriate amount of water. The resulting mixture was extruded and granulated using an extrusion granulator Basket Luzer BR-150 with a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0048] (Example 8) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and ground using an Air Mill JET-O-MIZER 0101 to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, 1 part of Selogen 7A, and 30.18 parts of calcium carbonate were charged into a Mighty Mixer MT-25H, mixed, and then kneaded with an appropriate amount of water. The resulting mixture was extruded and granulated using an extrusion granulator Basket Luzer BR-150 with a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0049] (Example 9) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and ground using an Air Mill JET-O-MIZER 0101 to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, 2 parts of Selogen 7A, and 29.18 parts of calcium carbonate were charged into a Mighty Mixer MT-25H, mixed, and then kneaded with an appropriate amount of water. The resulting mixture was extruded and granulated using an extrusion granulator Basket Luzer BR-150 with a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0050] (Example 10) 51.20 parts of fursulfamide raw material (99.6% purity), 7.24 parts of silicon dioxide, and 41.56 parts of calcium carbonate were mixed and ground in an Air Mill JET·O·MIZER 0101 to obtain a 50% fursulfamide premix. 59.82 parts of the obtained 50% fursulfamide premix, 5.0 parts of Demol N, 3.0 parts of Newcalgen WG-5, 1.0 part of Newcalgen EX-70, 3 parts of Selogen 7A, and 28.18 parts of calcium carbonate were charged into a Mighty Mixer MT-25H, mixed, and then kneaded with an appropriate amount of water. The resulting mixture was extruded and granulated using an extrusion granulator Basket Luzer BR-150 with a 0.8 mm screen. The granulated material was dried in a fluidized bed dryer (hot air temperature 80°C) for approximately 15 minutes, and the 0.35-1.18 mm portion was sieved to obtain an agricultural fungicide composition.

[0051] Although embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents. [Industrial applicability]

[0052] According to the present invention, it is possible to provide an agricultural fungicide composition that has good disintegration properties in water, high dispersion stability, and is useful as an agricultural material.

Claims

1. (1) Fursulfamide and (2) Naphthalene sulfonic acid / formaldehyde condensate or a salt thereof, (3) Dialkyl sulfosuccinic acid or a salt thereof, (4) Polycarboxylic acids and their salts, An agricultural fungicide composition containing [the specified ingredient].

2. The agricultural fungicide composition according to claim 1, wherein the salt of the naphthalene sulfonic acid / formaldehyde condensate in (2) above is a sodium salt.

3. The agricultural fungicide composition according to claim 1, wherein the salt of the dialkyl sulfosuccinic acid in (3) is a sodium salt.

4. The agricultural fungicide composition according to claim 1, wherein the salt of the polycarboxylic acid in (4) is a sodium salt.