Herbicidal composition containing 3-(2-chloro-4-fluoro-5-(3-methyl-2,6-dioxo-4-trifluoromethyl-3,6-dihydropyrimidin-1(2H)-yl)phenyl)-5-methyl-4,5-dihydroisoxazole-5-carboxylic acid ethyl ester and glufosinate-p and use thereof

Abstract

The present disclosure relates to the technical field of pesticides, and specifically relates to a herbicidal composition containing 3-(2-chloro-4-fluoro-5-(3-methyl-2,6-dioxo-4-trifluoromethyl-3,6-dihydropyrimidin-1(2H)-yl)phenyl)-5-methyl-4,5-dihydroisoxazole-5-carboxylic acid ethyl ester and glufosinate-P and use thereof. Preparation raw materials of the herbicidal composition at least include the 3-(2-chloro-4-fluoro-5-(3-methyl-2,6-dioxo-4-trifluoromethyl-3,6-dihydropyrimidin-1(2H)-yl)phenyl)-5-methyl-4,5-dihydroisoxazole-5-carboxylic acid ethyl ester and the glufosinate-P; and a dosage form of the herbicidal composition is at least one of a microemulsion, an emulsion in water, a dispersible oil suspension, a granule, a wettable powder, and a water-dispersible granule. The compounding of 3-(2-chloro-4-fluoro-5-(3-methyl-2,6-dioxo-4-trifluoromethyl-3,6-dihydropyrimidin-1(2H)-yl)phenyl)-5-methyl-4,5-dihydroisoxazole-5-carboxylic acid ethyl ester and glufosinate-P expands a herbicidal spectrum, improves a herbicidal effect, has the advantages of being quick in taking effect, long in an effect-lasting period, capable of delaying herbicide resistance, thorough in weeding, low in residue, low in toxicity, and safe and environmentally friendly, and has a good preventative effect on weeds in non-cultivated land.

Description

A herbicidal composition containing benzylpyraclostrobin and glufosinate-ammonium and its application Technical Field

[0001] The present invention relates to the technical field of pesticides, in particular to a herbicidal composition containing benzylpyrazone and glufosinate-ammonium and an application thereof. Background Art

[0002] In actual application, herbicides are indispensable. However, a single active ingredient can easily lead to weed resistance and the weed control spectrum is not broad enough; at the same time, the performance stability of a single active ingredient under high and low temperature conditions is insufficient, resulting in limited application. Benpyraclostrobin is a patented compound of Jiangshan Agrochemical Co., Ltd. It is a non-selective contact herbicide that inhibits the activity of protoporphyrin oxidase (PPO) to cause weeds to dry up and die. It has good control effects on a variety of weeds, especially glyphosate-resistant weeds. Glufosinate belongs to the phosphonic acid herbicide and is a glutamine synthesis inhibitor. After application, ammonium metabolism in the plant body is disrupted, and cytotoxic ammonium ions accumulate in the plant body. At the same time, photosynthesis is inhibited, making it suitable for controlling weeds in non-arable land.

[0003] Using essence glufosinate-ammonium alone has certain limitations, such as Chinese patent application (publication number is CN105660688A) discloses a kind of essence glufosinate-ammonium soluble preparation and preparation method thereof, specifically using essence glufosinate-ammonium as effective active ingredient, by adding surfactant, filler to prepare soluble preparation and carry out practical application, but weeding effectiveness and extensiveness are insufficient, limit its scope of use. In order to solve the problem of the insufficient efficacy of single agent, Chinese patent application (publication number is CN112741102A) discloses a kind of essence glufosinate-ammonium herbicide, by the composite combination of essence glufosinate-ammonium and bromoxynil and / or chlorimuron-methyl, although the weeding spectrum is expanded to a certain extent, the performance of the drug effect affected by the system stability of the composition of the different dosage forms prepared and the consumption of pesticide, all can have certain impact on environment and economy.

[0004] To address this difficult problem of field prevention and control, the present invention provides a herbicide composition containing benzylpyridazone and glufosinate-ammonium.

[0005] Summary of the Invention

[0006] In order to solve the above problems, a herbicide composition containing benzylpyridinium and glufosinate-ammonium and its application are provided. After being compounded, benzylpyridinium and glufosinate-ammonium expand the weed control spectrum, improve the weed control effect, have the advantages of fast effect, long lasting effect, delayed herbicide resistance, thorough weed control, low residue, low toxicity, safety and environmental protection, and have good control effect on non-arable weeds.

[0007] On the one hand, the present invention provides a herbicidal composition containing benzylpyridinium and glufosinate-ammonium, wherein the raw materials for preparing the herbicidal composition include at least benzylpyridinium and glufosinate-ammonium; the formulation of the herbicidal composition is at least one of a microemulsion, an aqueous emulsion, a dispersible oil suspension, a granule, a wettable powder, and a water-dispersible granule.

[0008] As a preferred technical solution, the raw materials for preparing the herbicidal composition further include at least one of a dispersant, a wetting agent, a disintegrant, an emulsifier, an antifreeze agent, a defoaming agent, a thickener, a filler, an organic solvent and water.

[0009] As a preferred technical solution, the herbicidal composition is in the form of a microemulsion. Calculated by mass percentage, the raw materials for preparing the microemulsion include at least: 0.5%-2.0% of benzylpyraclostrobin, 4.5%-40% of glufosinate ammonium, 2%-8% of an organic solvent, 10%-30% of an emulsifier, 0.01%-0.1% of a defoamer, 0.1%-2% of a thickener, 1%-10% of an antifreeze agent, and deionized water added to 100%.

[0010] As a preferred technical solution, the herbicidal composition is in the form of an aqueous emulsion. Calculated by mass percentage, the raw materials for preparing the aqueous emulsion include at least: 0.5%-2.0% of benzylpyraclostrobin, 4.5%-40% of glufosinate ammonium, 2%-8% of an organic solvent, 2%-10% of an emulsifier, 0.01%-0.1% of a defoamer, 0.1%-2% of a thickener, 1%-10% of an antifreeze agent, and deionized water added to 100%.

[0011] As a preferred technical solution, the formulation of the herbicidal composition is a dispersible oil suspension. Calculated by mass percentage, the raw materials for preparing the dispersible oil suspension include at least: 0.5%-2.0% of benzylpyraclostrobin, 9%-40% of glufosinate ammonium, 4-10% of a wetting agent, 3-8% of a dispersant, 2%-5% of an emulsifier, 0-10% of a thickener, 0%-5% of a defoaming agent, and an organic solvent added to 100%.

[0012] As a preferred technical solution, the herbicidal composition is in the form of a wettable powder. Calculated by mass percentage, the raw materials for preparing the wettable powder include at least: 0.5%-5.0% of benzylpyraclostrobin, 4.5%-80% of glufosinate ammonium, 0.5%-5% of an organic solvent, 1%-3% of a wetting agent, 2%-8% of a dispersant, 0.01%-0.1% of a defoaming agent, and the filler is added to 100%.

[0013] As a preferred technical solution, the herbicidal composition is in the form of water-dispersible granules. Calculated by mass percentage, the raw materials for preparing the water-dispersible granules include at least: 2%-9% of benzylpyraclostrobin, 35%-85% of glufosinate-ammonium, 2%-9% of organic solvent, 1%-5% of wetting agent, 5%-20% of dispersant, 0%-15% of disintegrant, and filler added to 100%.

[0014] As a preferred technical solution, the herbicidal composition is in the form of a granule. Calculated by mass percentage, the raw materials for preparing the granule include at least: 0.5%-1.0% of benzylpyraclostrobin, 4.5%-20% of glufosinate ammonium, 0.5-2% of a wetting agent, 1-4% of a dispersant, 0.5-2% of an emulsifier, 5%-15% of an organic solvent, and filler added to 100%.

[0015] As a preferred technical solution, the mass ratio of the benzylpyridamole to glufosinate-ammonium is 1:(9-20).

[0016] Based on the system of the present invention, by using benzaclostrobin and glufosinate-ammonium as effective active ingredients, in particular, through the herbicidal effects of mixed combinations of benzaclostrobin and glufosinate-ammonium in different ratios, it is found that, especially when the mass ratio of benzaclostrobin to glufosinate-ammonium is 1:(9-20), the herbicidal effects on grass weeds such as goosegrass, crabgrass, bermudagrass, thatch, and reed, and broad-leaved weeds such as fleabane, Canada goldenrod, water peanut, and nightshade, as well as small shrub weeds and sedges, all show synergistic effects. The two agents produce synergistic effects through different herbicidal mechanisms, thereby reducing the dosage of the drugs.

[0017] As a preferred technical solution, the dispersant is selected from at least one of dispersant NNO, dispersant MF, dispersant NO, sodium lignin sulfonate, sodium carboxymethyl cellulose, polyvinyl alcohol, polyethylene glycol, sodium tripolyphosphate, and sodium hexametaphosphate.

[0018] As a preferred technical solution, the wetting agent is selected from at least one of benzoate powder, soapnut powder, SOPA230, SOPA235, SOPA 270, washing powder, and sodium dodecylbenzenesulfonate.

[0019] As a preferred technical solution, the disintegrant is selected from at least one of sodium chloride, sodium sulfate, sodium nitrate, ammonium sulfate, sodium carbonate, sodium carboxymethyl starch, sodium alginate, polyvinyl pyrrolidone, and bentonite.

[0020] As a preferred technical solution, the emulsifier is selected from at least one of alkylphenol polyoxyethylene ether, phenylethylphenol polyoxyethylene polyoxypropylene ether, polyoxyethylene sorbitan laurate monoester, polyoxyethylene sorbitan palmitoleate monoester, polyoxyethylene sorbitan stearate monoester, sorbitan oleate monoester, sorbitan laurate, sorbitan monopalmitoleate, sorbitan stearate, castor oil polyoxyethylene ether, alkylbenzene sulfonate, alkylnaphthalene sulfonate, and alkyl sulfonate.

[0021] As a preferred technical solution, the antifreeze agent is selected from at least one of ethylene glycol, propylene glycol, glycerol, hexylene glycol, urea, and ammonium sulfate.

[0022] As a preferred technical solution, the defoaming agent is at least one of an alcohol defoaming agent, a phosphate defoaming agent, a fatty acid and fatty acid ester defoaming agent, and a silicone defoaming agent. The alcohol defoaming agent is at least one of methanol, ethanol, and butanol; the phosphate defoaming agent is at least one of tributyl phosphate, trioctyl phosphate, and an alkyl ether phosphate; and the fatty acid and fatty acid ester defoaming agent is at least one of sorbitan monolaurate and fatty alcohol polyoxyethylene ether.

[0023] As a preferred technical solution, the thickener is selected from one or more of gelatin, guar gum, magnesium aluminum silicate, hydroxyethyl cellulose, sodium tripolyphosphate, phenolic resin, methyl cellulose, polyethylene glycol, and polyvinyl alcohol.

[0024] As a preferred technical solution, the filler is selected from one or more of kaolin, diatomaceous earth, bentonite, attapulgite, white carbon black, starch, and light calcium carbonate.

[0025] As a preferred technical solution, the organic solvent is at least one of aromatic hydrocarbons, paraffins, aliphatic hydrocarbons, petroleum products, ketones, ethers, alcohols, turpentine, pine oil, rosin oil, vegetable oil solvents, vegetable oils, and modified vegetable oils;

[0026] Another aspect of the present invention provides an application of a herbicidal composition containing benzylpyraclostrobin and glufosinate-ammonium, which is applied to the prevention and control of weeds in non-cultivated land. Beneficial effects:

[0027] 1. The present invention provides a herbicidal composition containing benzylpyridinium and glufosinate-ammonium and its application. After being compounded, benzylpyridinium and glufosinate-ammonium expand the weed control spectrum, improve the weed control effect, have the advantages of fast effect, long lasting effect, delayed herbicide resistance, thorough weed control, low residue, low toxicity, safety and environmental protection, and have good control effect on non-arable weeds.

[0028] 2. Based on the system of the present invention, by using benzaclostrobin and glufosinate as effective active ingredients, especially by studying the herbicidal effects of mixed combinations of benzaclostrobin and glufosinate in different proportions, it was found that, especially when the mass ratio of benzaclostrobin to glufosinate was 1:(9-20), the herbicidal effects on grass weeds such as goosegrass, crabgrass, bermudagrass, thatch, and reed, and broad-leaved weeds such as fleabane, Canada goldenrod, water peanut, and nightshade, as well as small shrub weeds and sedges showed a synergistic effect. The two agents produced a synergistic effect through different herbicidal mechanisms, reducing the dosage.

[0029] 3. The herbicidal composition containing benzylpyridamole and glufosinate-ammonium provided by the present invention can be prepared into microemulsions, aqueous emulsions, dispersible oil suspensions, wettable powders, water-dispersible granules, and granules to meet the needs of different usage environments and scenarios. DETAILED DESCRIPTION

[0030] Example 1

[0031] Example 1 of the present invention provides a herbicidal composition containing benzylpyridazine and glufosinate-ammonium. The formulation of the herbicidal composition is a microemulsion. The raw materials for preparing the microemulsion include, by mass percentage, 1.0% benzylpyridazine, 20% glufosinate-ammonium, 5% organic solvent, 20% emulsifier, 0.05% defoamer, 1% thickener, 5% antifreeze, and deionized water added to 100%.

[0032] The organic solvent is solvent oil 150#.

[0033] The emulsifier is phenylethylphenol polyoxyethylene polyoxypropylene ether, which is sourced from Nantong Chenrun Chemical Co., Ltd.

[0034] The antifreeze agent is ethylene glycol and urea; the mass ratio of the ethylene glycol to urea is 3:2.

[0035] The defoaming agent is a fatty acid and fatty acid ester defoaming agent, and the fatty acid and fatty acid ester defoaming agent is sorbitan monolaurate.

[0036] The thickener is sodium tripolyphosphate.

[0037] Example 2

[0038] Example 2 of the present invention provides a herbicidal composition containing benzylpyridazine and glufosinate-ammonium, wherein the formulation of the herbicidal composition is a microemulsion. The specific embodiment is the same as that of Example 1, except that, by mass percentage, the raw materials for preparing the microemulsion include: 1.0% benzylpyridazine, 18% glufosinate-ammonium, 5% organic solvent, 20% emulsifier, 0.05% defoamer, 1% thickener, 5% antifreeze, and deionized water added to 100%.

[0039] Example 3

[0040] Example 3 of the present invention provides a herbicidal composition containing benzylpyridazine and glufosinate-ammonium, wherein the formulation of the herbicidal composition is a microemulsion. The specific embodiment is the same as that of Example 1, except that, by mass percentage, the raw materials for preparing the microemulsion include: 1.0% benzylpyridazine, 16% glufosinate-ammonium, 5% organic solvent, 20% emulsifier, 0.05% defoamer, 1% thickener, 5% antifreeze, and deionized water added to 100%.

[0041] Example 4

[0042] Example 4 of the present invention provides a herbicidal composition containing benzylpyridazine and glufosinate-ammonium, wherein the formulation of the herbicidal composition is a microemulsion. The specific embodiment is the same as that of Example 1, except that, by mass percentage, the raw materials for preparing the microemulsion include: 1.0% benzylpyridazine, 14% glufosinate-ammonium, 5% organic solvent, 20% emulsifier, 0.05% defoamer, 1% thickener, 5% antifreeze, and deionized water added to 100%.

[0043] Example 5

[0044] Example 5 of the present invention provides a herbicidal composition containing benzylpyridazine and glufosinate-ammonium, wherein the formulation of the herbicidal composition is a microemulsion. The specific embodiment is the same as that of Example 1, except that, by mass percentage, the raw materials for preparing the microemulsion include: 1.0% benzylpyridazine, 10% glufosinate-ammonium, 5% organic solvent, 20% emulsifier, 0.05% defoamer, 1% thickener, 5% antifreeze, and deionized water added to 100%.

[0045] Example 6

[0046] Example 6 of the present invention provides a herbicidal composition containing benzylpyridazine and glufosinate-ammonium, wherein the formulation of the herbicidal composition is an aqueous emulsion. The raw materials for preparing the aqueous emulsion include, by mass percentage: 1.0% benzylpyridazine, 20% glufosinate-ammonium, 4% organic solvent, 8% emulsifier, 0.03% defoamer, 1% thickener, 6% antifreeze, and deionized water added to 100%.

[0047] The organic solvent is isopropyl alcohol.

[0048] The emulsifier is phenylethylphenol polyoxyethylene polyoxypropylene ether, which is sourced from Nantong Chenrun Chemical Co., Ltd.

[0049] The antifreeze agent is ethylene glycol and urea; the mass ratio of the ethylene glycol to urea is 3:2.

[0050] The defoaming agent is a fatty acid and fatty acid ester defoaming agent, and the fatty acid and fatty acid ester defoaming agent is sorbitan monolaurate.

[0051] The thickener is magnesium aluminum silicate.

[0052] Example 7

[0053] Example 7 of the present invention provides a herbicidal composition containing benzylpyridinium and glufosinate-ammonium, wherein the formulation of the herbicidal composition is a dispersible oil suspension concentrate. The raw materials for preparing the dispersible oil suspension concentrate include, by mass percentage: 1% benzylpyridinium, 20% glufosinate-ammonium, 6% wetting agent, 5% dispersant, 3% emulsifier, 2% thickener, 1% defoamer, and an organic solvent added to 100%.

[0054] The dispersant is dispersant NNO.

[0055] The wetting agent is SOPA230.

[0056] The organic solvent is solvent oil 200#.

[0057] The emulsifier is phenylethylphenol polyoxyethylene polyoxypropylene ether, which is sourced from Nantong Chenrun Chemical Co., Ltd.

[0058] The defoaming agent is a fatty acid and fatty acid ester defoaming agent, and the fatty acid and fatty acid ester defoaming agent is sorbitan monolaurate.

[0059] The thickener is gelatin.

[0060] Example 8

[0061] Example 8 of the present invention provides a herbicidal composition containing benzylpyridazine and glufosinate-ammonium, wherein the formulation of the herbicidal composition is a wettable powder. The raw materials for preparing the wettable powder include, by mass percentage, 3% benzylpyridazine, 60% glufosinate-ammonium, 3% organic solvent, 2% wetting agent, 5% dispersant, 0.06% defoaming agent, and filler added to 100%.

[0062] The dispersant is sodium lignin sulfonate.

[0063] The wetting agent is sodium dodecylbenzenesulfonate.

[0064] The organic solvent is solvent oil 200#.

[0065] The defoaming agent is a fatty acid and fatty acid ester defoaming agent, and the fatty acid and fatty acid ester defoaming agent is sorbitan monolaurate.

[0066] The filler is kaolin.

[0067] Example 9

[0068] Example 9 of the present invention provides a herbicidal composition containing benzylpyridinium and glufosinate-ammonium, wherein the formulation of the herbicidal composition is a water-dispersible granule. The raw materials for preparing the water-dispersible granules include, by mass percentage, 4% benzylpyridinium, 64% glufosinate-ammonium, 5% organic solvent, 3% wetting agent, 10% dispersant, 5% disintegrant, and filler added to 100%.

[0069] The dispersant is sodium lignin sulfonate.

[0070] The wetting agent is sodium dodecylbenzenesulfonate.

[0071] The organic solvent is isopropyl alcohol.

[0072] The disintegrant is sodium alginate.

[0073] The filler is kaolin.

[0074] Example 10

[0075] Example 10 of the present invention provides a herbicidal composition containing benzylpyridinium and glufosinate-ammonium, wherein the herbicidal composition is in the form of a granule. The raw materials for preparing the granule include, by mass percentage, 0.8% benzylpyridinium, 16% glufosinate-ammonium, 1% wetting agent, 3% dispersant, 1% emulsifier, 10% organic solvent, and filler added to 100%.

[0076] The dispersant is dispersant MF.

[0077] The wetting agent is SOPA 270.

[0078] The emulsifier is phenylethylphenol polyoxyethylene polyoxypropylene ether, which is sourced from Nantong Chenrun Chemical Co., Ltd.

[0079] The filler is kaolin.

[0080] The organic solvent is solvent oil 150#.

[0081] Performance testing methods

[0082] 1. Indoor activity determination test.

[0083] (1) Experimental Objective: To determine the inhibitory effects of benzylpyraclostrobin, glufosinate-ammonium, and their different mixtures on Erigeron spp. in greenhouse potted plants and to evaluate their combined effects. The results are shown in Table 2.

[0084] (2) Test method: Using Erigeron chinense as the research object, organic soil (pH 6.7, organic matter content 1.59%) that had not been treated with herbicides was placed in a plastic bowl with a size of 22×15×10 cm. 20 seeds were evenly sown in each pot. When the weeds grew to the 2-4 leaf stage, the stems and leaves were treated with a spray tower. Each treatment was repeated 4 times, and a blank control was set up. After the liquid was dried, the test material was placed in a greenhouse for cultivation. The damage to the weeds was observed 15 days and 30 days after the application, and the fresh weight of the above-ground part was weighed. The toxic effect of the agent on the weeds was evaluated by the inhibition rate of the target weeds. The evaluation method of the combined effect of the two-component combination was based on the Gowing method in the combined effect determination of the mixed compound in the indoor bioassay guidelines for pesticides.

[0085] Fresh weight inhibition rate % = (control fresh weight - treatment fresh weight) / control fresh weight × 100

[0086] E0=X+Y-XY / 100

[0087] In the above formula, E0 is the theoretical fresh weight inhibition rate of the herbicide benzylpyridazine and glufosinate-ammonium, X is the measured fresh weight inhibition rate of a single dose of the herbicide benzylpyridazine, and Y is the measured fresh weight inhibition rate of a single dose of glufosinate-ammonium. Assuming E is the measured fresh weight inhibition rate of the herbicide benzylpyridazine and glufosinate-ammonium, a synergistic effect is indicated when E-E0 ≥ 10, an additive effect is indicated when -10 < E-E0 < 10, and an antagonistic effect is indicated when E-E0 ≤ -10.

[0088] 2. Field efficacy test

[0089] Test agents: Field trials were conducted using the formulations provided in Examples 1-5.

[0090] Control agent: 66% fluazifop-glufosinate wettable powder (commercially available)

[0091] 40% benzopyrene·glyphosate dispersible oil suspension (commercially available)

[0092] Targets of control: Weeds in non-arable land. The weeds in the selected test sites mainly include grass weeds such as crabgrass, bermudagrass, and thatch, and broadleaf weeds such as fleabane, nightshade, and sorrel.

[0093] Test Method: Accurately weigh each pesticide according to the size of the test plot, dilute with water, and evenly spray using a backpack sprayer. Use a fan-shaped nozzle designed for herbicides. Care should be taken to evenly distribute the pesticide throughout the test plot, ensuring no overlap or omissions.

[0094] Investigation: Weed mortality was observed 15 and 30 days after application, and the herbicidal activity of each treatment was compared. The efficacy results are shown in Tables 3 and 4.

[0095] Table 2 Indoor toxicity test of the combination of benzylpyraclostrobin and glufosinate-ammonium to Erigeron spp.

[0096] Table 3 Fresh weight control effect of benzylpyridamole and glufosinate-ammonium combination on field weeds - 15 days after application

[0097] Table 4 Fresh weight control effect of benzylpyridamole and glufosinate-ammonium combination on field weeds - 30 days after application

[0098] In summary, Tables 1-3 show that the present invention enhances overall control effectiveness through the combined action of two pesticide active ingredients, significantly improving rapidity of action, with significant effects occurring as early as two hours after application in hot weather. The duration of action is significantly increased, further expanding the spectrum of weed control, and demonstrating significant synergistic effects in controlling both grass and broadleaf weeds. Furthermore, the present invention's combined herbicide exhibits significant efficacy compared to single-dose herbicides, and is comparable to or even superior to commercially available compound herbicides. Furthermore, the present invention's mixed herbicide helps delay the development of weed resistance.

Claims

1. A herbicidal composition containing benzylpyraclostrobin and glufosinate-ammonium, characterized in that: The preparation raw materials include at least benzylpyridamole and glufosinate-ammonium; the formulation of the herbicidal composition is at least one of microemulsion, aqueous emulsion, dispersible oil suspension, granule, wettable powder and water-dispersible granule.

2. A herbicidal composition containing benzylpyrazone and glufosinate-ammonium according to claim 1, characterized in that: The raw materials for preparing the herbicidal composition further include at least one of a dispersant, a wetting agent, a disintegrant, an emulsifier, an antifreeze agent, a defoaming agent, a thickener, a filler, an organic solvent and water.

3. A herbicidal composition containing benzylpyrazone and glufosinate-ammonium according to claim 2, characterized in that, The herbicidal composition is in the form of a microemulsion. The raw materials for preparing the microemulsion include, by mass percentage, at least: 0.5%-2.0% of benzylpyraclostrobin, 4.5%-40% of glufosinate ammonium, 2%-8% of an organic solvent, 10%-30% of an emulsifier, 0.01%-0.1% of a defoamer, 0.1%-2% of a thickener, 1%-10% of an antifreeze agent, and deionized water added to 100%.

4. A herbicidal composition containing benzylpyraclostrobin and glufosinate-ammonium according to claim 2, characterized in that: The herbicidal composition is in the form of an aqueous emulsion. The raw materials for preparing the aqueous emulsion include, by mass percentage, at least: 0.5%-2.0% of benzylpyraclostrobin, 4.5%-40% of glufosinate ammonium, 2%-8% of an organic solvent, 2%-10% of an emulsifier, 0.01%-0.1% of a defoamer, 0.1%-2% of a thickener, 1%-10% of an antifreeze agent, and deionized water added to 100%.

5. A herbicidal composition containing benzylpyrazone and glufosinate-ammonium according to claim 2, characterized in that: The herbicidal composition is in the form of a dispersible oil suspension. Calculated by mass percentage, the raw materials for preparing the dispersible oil suspension include at least: 0.5%-2.0% of benzylpyraclostrobin, 9%-40% of glufosinate ammonium, 4-10% of a wetting agent, 3-8% of a dispersant, 2%-5% of an emulsifier, 0-10% of a thickener, 0%-5% of a defoaming agent, and an organic solvent added up to 100%.

6. A herbicidal composition containing benzylpyrazone and glufosinate-ammonium according to claim 2, characterized in that: The herbicidal composition is in the form of a wettable powder. Calculated by mass percentage, the raw materials for preparing the wettable powder include at least: 0.5%-5.0% of benzylpyraclostrobin, 4.5%-80% of glufosinate ammonium, 0.5%-5% of an organic solvent, 1%-3% of a wetting agent, 2%-8% of a dispersant, 0.01%-0.1% of a defoaming agent, and fillers added up to 100%.

7. The herbicidal composition containing benzylpyraclostrobin and glufosinate-ammonium according to claim 2, characterized in that: The herbicidal composition is in the form of water-dispersible granules. The raw materials for preparing the water-dispersible granules include, by mass percentage, at least: 2%-9% of benzylpyraclostrobin, 35%-85% of glufosinate-ammonium, 2%-9% of an organic solvent, 1%-5% of a wetting agent, 5%-20% of a dispersant, 0%-15% of a disintegrant, and fillers added up to 100%.

8. The herbicidal composition containing benzylpyraclostrobin and glufosinate-ammonium according to claim 2, wherein: The herbicidal composition is in the form of a granule. The raw materials for preparing the granule include, by mass percentage, at least: 0.5%-1.0% of benzylpyridamole, 4.5%-20% of glufosinate ammonium, 0.5%-2% of a wetting agent, 1-4% of a dispersant, 0.5-2% of an emulsifier, 5%-15% of an organic solvent, and fillers added up to 100%.

9. The herbicidal composition containing benzylpyraclostrobin and glufosinate-ammonium according to any one of claims 1 to 8, characterized in that: The mass ratio of the benzylpyridamole to glufosinate-ammonium is 1:(9-20).

10. Use of the herbicidal composition containing benzylpyrazone and glufosinate-ammonium according to claim 9, characterized in that: Used for the prevention and control of weeds in non-arable land.