A herbicidal composition containing sulfonepyraclostrobin and diflufenac and its application

Abstract

The present invention discloses a herbicidal composition containing sulfonepyraclostrobin and diflufenac. The herbicidal composition comprises active ingredients A, B, and C. Active ingredient A is sulfonepyraclostrobin, active ingredient B is diflufenac, and active ingredient C is oxyfluorfen-butyl or flumetsulam. The herbicidal composition can be used in wheat fields and has a significant control effect on various annual or perennial weeds in wheat fields. It has the advantages of a wide use period, a long lasting effect, and safety for subsequent crops.

Description

Technical Field

[0001] The invention belongs to the field of herbicides, and particularly relates to a herbicide composition containing pyraclostrobin and diflufenac and an application thereof. Technical Background

[0002] Weed damage is one of the most significant factors affecting wheat production. Effective chemical weed control in wheat fields is crucial for ensuring safe wheat production. A rational blend of herbicides is an effective method for improving control effectiveness, expanding the spectrum of weed control, delaying weed resistance, mitigating environmental pollution, reducing usage costs, and reducing herbicide residues.

[0003] Sulfone pyraclostrobin mainly inhibits the growth of very long side chain fatty acids (C 20 ~C 30 ) biosynthesis, inhibiting the growth of weed seedlings in the early stage, and then destroying the meristem and coleoptile, eventually stopping the growth of the main body and causing death.

[0004] Difluanid is a carotenoid biosynthesis inhibitor, causing chlorophyll destruction and cell rupture, leading to plant death. It is suitable for controlling broadleaf weeds in barley and wheat fields, including cleavers, convolvulus, purslane, nightshade, chickweed, vetch, field bindweed, mustelid, sorrel, willowleaf, amaranth, dayflower, essostreatus, bluegrass, vetch, sophora flavescens, and bindweed.

[0005] Oxyfluorfen, a fluorinated diphenyl ether, is an ultra-low-use, selective, pre- and post-emergence contact herbicide. It kills weeds primarily through absorption into the coleoptile and mesocotyl. It is suitable for controlling broadleaf weeds and certain grass weeds in rice, soybeans, wheat, cotton, corn, oil palm, vegetables, and orchards.

[0006] Azosulfuron belongs to the triazolopyrimidine sulfonamide class and is a typical acetolactate synthase inhibitor. By inhibiting the synthesis of branched-chain amino acids, it hinders protein synthesis and halts plant growth. It has a long residual effect and a broad spectrum of weed control, suitable for soil and foliage treatments. It is suitable for controlling annual and perennial broadleaf weeds in fields of corn, soybeans, wheat, barley, clover, alfalfa, and other crops, and also has some inhibitory effect on young grass weeds.

[0007] Currently, CN106614631A (published on May 10, 2017) discloses a herbicide composition containing diflufenac and sulfometrazoline; CN106689145A (published on May 24, 2017) discloses a herbicide composition containing diflufenac and sulfometrazoline. There are no reports on the combined herbicidal effect of sulfometrazoline, diflufenac, and oxyfluorfen or flumetsulam. This study determined the combined herbicidal effect of sulfometrazoline, diflufenac, and oxyfluorfen or flumetsulam on annual weeds in wheat fields through indoor testing, screened for appropriate compound ratios, and conducted corresponding field efficacy tests. The results showed that each compound had a synergistic effect on weed control in wheat fields within a certain ratio range. Summary of the Invention

[0008] Based on the above situation, the object of the present invention is to provide a herbicidal composition containing sulfonepyraclostrobin, diflufenacil and oxyfluorfen-butyl or fluazifop-butyl.

[0009] Another object of the present invention is to provide a herbicide composition containing sulfonepyraclostrobin, diflufenacil and oxyfluorfen or fluazifop-butyl for use in controlling weeds in wheat fields. The herbicide composition expands the weed control spectrum, has excellent control effects on common broadleaf weeds, grass weeds and sedge weeds, and is safe for crops.

[0010] In order to achieve the above objectives, the present invention provides the following technical solution: a herbicidal composition containing sulfonepyraclostrobin and diflufenac, wherein the effective ingredients of the herbicidal composition include active ingredient A, active ingredient B and active ingredient C, wherein the active ingredient A is sulfonepyraclostrobin, the active ingredient B is diflufenac, and the active ingredient C is oxyfluorfen or fluazifop-butyl;

[0011] Furthermore, the mass ratio of active ingredient A, active ingredient B and active ingredient C of the herbicidal composition is 1-20:1-20:1-30, or any value within the above numerical range;

[0012] Furthermore, the mass ratio of active ingredient A, active ingredient B and active ingredient C of the herbicidal composition is 1-10:1-10:1-20, or any value within the above numerical ranges;

[0013] Furthermore, the mass ratio of active ingredient A, active ingredient B and active ingredient C of the herbicidal composition is 2-10:2-10:3-18, or any value within the above numerical ranges;

[0014] Furthermore, the mass ratio of sulfonepyraclostrobin, diflufenac, and oxyfluorfen is: 80+80+120, 80+80+150, 80+80+180, 80+140+120, 80+140+150, 80+140+180, 80+200+120, 80+200+150, 80+200+180, 160+80+120, 160+80+150, 160+80+180, 160+140+1 20, 160+140+150, 160+140+180, 160+200+120, 160+200+150, 160+200+180, 240+80+120, 240+80+150, 240+80+180, 240+140+120, 240+140+150, 240+140+180, 240+200+120, 240+200+150, 240+200+180;

[0015] Furthermore, the mass ratio of sulfonepyraclostrobin, difluanid, and flumetsulam is: 80+80+120, 80+80+150, 80+80+180, 80+140+120, 80+140+150, 80+140+180, 80+200+120, 80+200+150, 80+200+180, 160+80+120, 160+80+150, 160+80+180, 160+140+1 20, 160+140+150, 160+140+180, 160+200+120, 160+200+150, 160+200+180, 240+80+120, 240+80+150, 240+80+180, 240+140+120, 240+140+150, 240+140+180, 240+200+120, 240+200+150, 240+200+180;

[0016] Furthermore, the mass percentage of the active ingredient A, active ingredient B and active ingredient C in the herbicidal composition is 1 to 90%;

[0017] Furthermore, the mass percentage of the active ingredient A, active ingredient B and active ingredient C in the herbicidal composition is 10 to 80%;

[0018] Furthermore, the herbicidal composition further comprises, in addition to the active ingredient, agriculturally acceptable auxiliary ingredients, wherein the auxiliary ingredients are selected from one or more of a wetting agent, a dispersant, an emulsifier, a thickener, a disintegrant, an antifreeze agent, a defoaming agent, a solvent, a preservative, a stabilizer, a synergist or a carrier;

[0019] Furthermore, the wetting agent is one or more of alkylbenzene sulfonate, alkylnaphthalene sulfonate, lignin sulfonate, sodium lauryl sulfate, sodium dioctyl sulfosuccinate, α-olefin sulfonate, alkylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, alkylphenol ethoxylate, fatty alcohol ethoxylate, fatty alcohol polyoxyethylene ether sodium sulfate, silkworm feces, soapberry powder, soapberry powder, SOPA, detergent, emulsifier 2000 series and wetting penetrant F; and / or

[0020] Furthermore, the dispersant is one or more of lignin sulfonate, alkylnaphthalene sulfonate formaldehyde condensate, naphthalene sulfonate, tristyrylphenol ethoxylate phosphate, fatty alcohol ethoxylate, alkylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether methyl ether condensate sulfate, fatty amine polyoxyethylene ether, glycerol fatty acid ester polyoxyethylene ether, polycarboxylates, polyacrylic acids, phosphates, EO-PO block copolymers and EO-PO graft copolymers; and / or

[0021] Furthermore, the emulsifier is one or more of calcium dodecylbenzenesulfonate, alkylphenol formaldehyde resin polyoxyethylene ether, phenylethylphenol polyoxyethylene polyoxypropylene ether, fatty alcohol ethylene oxide-propylene oxide copolymer, styrylphenol polyoxyethylene ether, castor oil polyoxyethylene ether and alkylphenol ether phosphate; and / or

[0022] Furthermore, the thickener is one or more of xanthan gum, organic bentonite, gum arabic, sodium alginate, magnesium aluminum silicate, carboxymethyl cellulose and white carbon black; and / or

[0023] Furthermore, the disintegrant is one or more of sodium sulfate, ammonium sulfate, aluminum chloride, sodium chloride, ammonium chloride, bentonite, glucose, sucrose, starch, cellulose, urea, sodium carbonate, sodium bicarbonate, citric acid and tartaric acid; and / or

[0024] Furthermore, the antifreeze agent is one or more of alcohols, alcohol ethers, chlorinated hydrocarbons and inorganic salts; and / or

[0025] Furthermore, the defoaming agent is C 10 -C 20 Saturated fatty acid compounds, silicone oil, silicone compounds, C8-C 10 One or more of fatty alcohols; and / or

[0026] Furthermore, the preservative is one or more of propionic acid, sodium propionate, sorbic acid, sodium sorbate, potassium sorbate, benzoic acid, sodium benzoate, sodium p-hydroxybenzoate, methyl p-hydroxybenzoate, kasone and 1,2-benzisothiazolin-3-one; and / or

[0027] Furthermore, the stabilizer is one or more of disodium hydrogen phosphate, oxalic acid, succinic acid, adipic acid, borax, 2,6-di-tert-butyl-p-cresol, triethanolamine oleate, epoxidized vegetable oil, kaolin, bentonite, attapulgite, white carbon black, talc, montmorillonite and starch; and / or

[0028] Furthermore, the synergist is selected from phosphine, piperonyl butoxide; and / or

[0029] Furthermore, the filler is a solvent, a filler or a carrier;

[0030] Furthermore, the solvent is one or more of benzene, toluene, xylene, durene, methanol, ethanol, isopropanol, n-butanol, dimethyl sulfoxide, dimethylformamide, cyclohexanone, alkylene carbonate, diesel, solvent oil, vegetable oil, vegetable oil derivatives and water; and / or

[0031] Furthermore, the carrier is one or more of ammonium salts, ground natural minerals, ground artificial minerals, silicates, resins, waxes, solid fertilizers, water, organic solvents, mineral oils, vegetable oils and vegetable oil derivatives.

[0032] Furthermore, the herbicidal composition can be prepared into an agriculturally acceptable formulation.

[0033] Furthermore, the dosage form is a soluble solution, a suspension, a water-dispersible granule, or a dispersible oil suspension.

[0034] A herbicide composition containing pyraclostrobin, diflufenacil and oxyfluorfen-butyl or fluazifop-butyl is used in controlling weeds in wheat fields.

[0035] Furthermore, the wheat field weeds are one or more of brome, wild oats, aestivum, multiflora ryegrass, Japanese alopecuroides, coleus, sedge, bluegrass, sow thistle, shepherd's purse, bottle grass, chickweed, wheat family, quinoa, sorrel, cupflower, field bindweed, prickly lettuce, sonchus, snakehead, speedwell, cleaver, vetch, and humulus.

[0036] Furthermore, the herbicidal composition is applied to the unwanted plants or their growth sites.

[0037] The herbicide composition of the present invention has the following advantages:

[0038] 1) By mixing three herbicides with different mechanisms, a significant synergistic effect is achieved, which greatly improves the herbicidal activity of the herbicides;

[0039] 2) The present invention can significantly improve the control effect on various resistant weeds, delay the development of weed resistance, and extend the service life of the agent;

[0040] 3) The herbicide composition of the present invention is applied to weed control in wheat fields, has a wider weed control spectrum and a longer duration of effect, and is safe for wheat while improving efficacy. Specific implementation plan

[0041] In order to better illustrate the present invention, the present invention is further described below in conjunction with embodiments.

[0042] Example 1

[0043] 40% sulfonepyraclostrobin·pyraclostrobin·oxyfluorfen SC (16%+12%+12%)

[0044] Formula composition: 16% sulfonepyraclostrobin, 12% difluanid, 12% oxyfluorfen; 3% alkylphenol polyoxyethylene ether phosphate, 5% fatty alcohol polyoxyethylene ether, 3% polycarboxylate, 1% citric acid, 0.15% xanthan gum, 0.01% kason, 5% propylene glycol, 0.5% magnesium aluminum silicate, 0.5% silicone defoamer, and deionized water to make up the balance.

[0045] Preparation method: According to the formula ratio of the embodiment, the active ingredients, surfactants and other functional additives are placed in a reactor in sequence, water is added and mixed evenly, and the suspension product is obtained by high-speed shearing, wet sand grinding, and finally homogenization filtration.

[0046] Example 2

[0047] 35% sulfone metabendazole, diflufenac, and oxyfluorfen water dispersible granules (15%+10%+10%)

[0048] Formula composition: 15% sulfone metabendazole, 10% diflufenican, 10% oxyfluorfen; 2% sodium lauryl sulfate, 6% polycarboxylate, 9% sodium lignin sulfonate, 5% ammonium sulfate, 3% glucose, kaolin makes up the balance

[0049] Preparation method: According to the formula ratio, the active ingredients are added to the carrier, and surfactants and other functional additives are added thereto, mixed, and after air flow grinding, appropriate water is added, and then the water-dispersible granule product is obtained by kneading, granulating, drying and screening.

[0050] Example 3

[0051] 1% sulfamethoxazole, diflufenac, and oxyfluorfen granules (0.4%+0.3%+0.3%)

[0052] Formula composition: 0.4% sulfone metabendazole, 0.3% diflufenican, 0.3% oxyfluorfen-butyl; 25% propylene carbonate, 2% naphthalenesulfonate formaldehyde condensate, 5% sodium ligninsulfonate, and spherical attapulgite particles make up the balance;

[0053] Preparation method: According to the formula ratio of the embodiment, the active ingredient and the solvent are fully dissolved first, and then the auxiliary agent and the carrier are added according to the ratio, while stirring. After sufficient adsorption, dry in the air to obtain the granule product.

[0054] Example 4

[0055] 30% sulfone metabendazole·pyraclostrobin·oxyfluorfen dispersible oil suspension (12%+9%+9%)

[0056] Formula composition: 12% sulfone metabendazole, 9% difluanid, 9% oxyfluorfen; 2% calcium dodecylbenzenesulfonate, 5% fatty acid ester polyoxyethylene ether, 5% styrenephenol polyoxyethylene ether, 5% castor oil polyoxyethylene ether, 1% polycarboxylate, 0.5% organic bentonite, 0.5% fumed silica, 30% solvent oil, corn oil makes up the balance

[0057] Preparation method: According to the formula ratio of the embodiment, the active ingredients, surfactants and other functional additives are placed in a reactor in sequence, oil is added and mixed evenly, and then the product is obtained by high-speed shear sand grinding and finally homogenous filtration to obtain a dispersible oil suspension product.

[0058] Example 5

[0059] 32% sulfonepyraclostrobin·pyrafluanid·pyrasulfuron suspension concentrate (16%+12%+4%)

[0060] Formula composition: 16% sulfamethoxam, 12% diflufenacil, 4% fluazifop; 3% alkylphenol polyoxyethylene ether phosphate, 5% fatty alcohol polyoxyethylene ether, 3% polycarboxylate, 1% citric acid, 0.12% xanthan gum, 5% propylene glycol, 0.01% kason, 0.5% magnesium aluminum silicate, 0.5% silicone defoamer, and deionized water to make up the balance.

[0061] Preparation method: same as Example 1.

[0062] Example 6

[0063] 60% sulfamethoxazole, difluanid, and fluazifop water dispersible granules (30%+25%+5%)

[0064] Formula composition: 30% sulfone metabendazole, 25% diflufenacil, 5% fluazifop; 3% sodium lauryl sulfate, 6% polycarboxylate, 10% sodium lignin sulfonate, 5% ammonium sulfate, 3% glucose, kaolin to make up the balance

[0065] Preparation method: same as Example 2.

[0066] Example 7

[0067] 1.5% sulfamethoxazole, diflufenacil, and fluazifop granules (0.5%+0.6%+0.4%)

[0068] Formula composition: 0.5% sulfamethoxazole, 0.6% diflufenacil, 0.4% fluazifop; 25% propylene carbonate, 2% naphthalenesulfonate formaldehyde condensate, 5% sodium ligninsulfonate, and spherical attapulgite particles make up the balance;

[0069] Preparation method: same as Example 3.

[0070] Example 8

[0071] 16% sulfonepyraclostrobin·pyraclostrobin·pyrasulfuron dispersible oil suspension (4%+6%+6%)

[0072] Formula composition: 4% sulfone metabendazole, 6% diflufenacil, 6% flumetsulam; 2% calcium dodecylbenzenesulfonate, 10% castor oil polyoxyethylene ether, 5% fatty acid ester polyoxyethylene ether, 1% succinic acid sulfonate, 1% organic bentonite, 1% fumed silica, and corn oil makes up the balance;

[0073] Preparation method: same as Example 4.

[0074] Indoor activity test

[0075] Test basis: The test is based on NY / T 1155.3-2006 "Guidelines for Indoor Bioassay Tests of Pesticides - Herbicides Part 3: Activity Determination Test - Soil Spray Method";

[0076] Test targets: Japanese alopecuroides, multiflora ryegrass, sophora flavescens, and speedwell;

[0077] Instruments and equipment: light incubator, quantitative spray equipment, electronic balance, pots, pipettes, etc.;

[0078] Test soil: The test uses air-dried loam with an organic matter content of ≤3%, neutral pH, good air permeability, and sieved;

[0079] Test materials: Fill the pots 4 / 5 full with test soil and irrigate the bottom of the pots to completely moisten the soil until saturated. Evenly sow the pretreated weed seeds on the soil surface and cover with 0.5cm to 2cm of soil depending on seed size. Mist the soil 24 hours after sowing and transfer to the greenhouse for conventional cultivation. Water the soil using bottom irriga- tion.

[0080] Test agents: sulfamethoxazole technical, diflufenacil technical, oxyfluorfen technical, and fluazifop technical;

[0081] Preparation of the drug: Dissolve the above raw drugs in a suitable solvent, and then dilute with 0.1% Tween 80 aqueous solution;

[0082] Chemical treatment: Soil spray treatment was performed according to the experimental design, ranging from low to high doses. Each treatment was replicated four times, and a treatment without chemical was set as a blank control. After treatment, the chemical solution on the surface of the test material was allowed to air dry naturally, and then the material was moved to the greenhouse for conventional cultivation.

[0083] Investigation: The herbicidal activity was recorded by the absolute value investigation method 14 days after treatment.

[0084] Calculation method:

[0085] Fresh weight control effect E = (fresh weight of control area - fresh weight of treatment area) × 100 / fresh weight of control area

[0086] Theoretical efficacy of mixture E0 = 100-(100-A)(100-B)(100-C) / 10000

[0087] Where,

[0088] A represents the control effect of herbicide I when the dosage is P;

[0089] B represents the control effect of herbicide II when the dosage is Q;

[0090] C represents the control effect of herbicide III when the dosage is R;

[0091] E0 represents the theoretical fresh weight control efficacy when the dosage of the mixture (Ⅰ+Ⅱ+Ⅲ) is (P+Q+R), and E represents the actual fresh weight control efficacy of each treatment;

[0092] Evaluation criteria for the combined effect of mixed drugs: E-E0>10% is synergistic effect, E-E0<-10% is antagonistic effect, and E-E0 between ±10% is synergistic effect.

[0093] The test results are shown in the following tables:

[0094] Table 1 Combined effects of a mixture of pyraclostrobin, diflufenac and oxyfluorfen on Japanese alopecurus and multiflorus ryegrass

[0095]

[0096]

[0097] Table 2 Combined effects of a mixture of sulfonepyraclostrobin, difluanid and oxyfluorfen on Artemisia descurainia and Veronica officinalis

[0098]

[0099]

[0100] Table 3 Combined effects of a mixture of sulfamethoxazole, diflufenacil and flumetsulam on Japanese alopecurus and multiflorus ryegrass

[0101]

[0102]

[0103] Table 4 Combined effects of a mixture of sulfonepyraclostrobin, difluanid and fluazifop on Artemisia descurainia and Veronica officinalis

[0104]

[0105]

[0106] The indoor activity test results in Tables 1 to 4 show that the mixture of pyraclostrobin, diflufenacil, oxyfluorfen-butyl and fluazifop-butyl has good indoor activity against common weeds in wheat fields, such as Japanese alopecurus, multiflorus ryegrass, speedwell and sophora flavescens. The evaluation method of combined action shows synergistic effect.

[0107] Field efficacy test:

[0108] Test reference: "Guidelines for Field Efficacy Tests of Pesticides" (GB / T17980.42-2004),

[0109] Experimental location: wheat planting area in Changge City, Xuchang City, Henan Province;

[0110] Experimental field: winter wheat field;

[0111] Weeds in the experimental field: Bromus, Lolium multiflorum, Artemisia selengensis, Glechoma longituba, and Shepherd's purse were mixed in previous years.

[0112] Experimental design: The experimental plots were arranged in random blocks, with a total of 6 treatments and 1 clear water control (Table 5), and each plot was 20m 2 , each treatment was repeated 4 times, with a total of 28 plots.

[0113] Test agent:

[0114] Table 5 Different experimental drugs and dosages

[0115]

[0116] Application method: Soil spray. Use a backpack sprayer with a fan-shaped nozzle.

[0117] Survey method: Absolute value survey method was used. Four sampling points were randomly selected for each treatment at 20 days and 40 days after application. Each sampling point was 0.25 m 2 , investigate the plant protection effect; at the same time, investigate the fresh weight quality 40 days after the application of the medicine.

[0118] Calculation method:

[0119] Control effect of weeds per plant (fresh mass) = [(number of weeds per plant (fresh mass) in the control area - number of weeds per plant (fresh mass) in the treated area after treatment / number of weeds per plant (fresh mass) in the control area)] × 100%

[0120] SPSS 20 was used for data processing, and the Duncan's new multiple range (DMRT) method was used for statistical analysis.

[0121] Test results:

[0122] The results in Table 6 show that a mixture of pyraclostrobin, diflufenac, oxyfluorfen, or fluazifop-butyl applied to wheat fields effectively controlled weeds in the wheat fields. The treatments with 35% pyraclostrobin water dispersible granules (15% + 10% + 10%) and 32% pyraclostrobin suspension concentrate (16% + 12% + 4%) effectively controlled common weeds in the experimental fields, including bromegrass, multiflora ryegrass, sophora flavescens, shepherd's purse, and galangal. These treatments were superior to the control effects of the individual agents on different weeds. This broadened the weed control spectrum of the combination, reduced the risk of weed resistance, and improved safety for wheat.

[0123] Table 6: Effectiveness of different test agents (%)

[0124]

[0125] Note: The above protective effects (%) are the average values ​​of each replicate; lowercase letters represent significant differences at the 5% level.

[0126] Safety investigation: During the test, all the test agents were observed to be safe for wheat growth 20 days and 40 days after application, and no obvious pesticide damage affecting crop growth occurred.

[0127] Table 7 Safety test results

[0128]

[0129]

[0130] Note: The above plant heights are average values; lowercase letters represent significant differences at the 5% level.

[0131] In summary, the composition of the present invention adopts a combination of sulfamethoxam, difluanid, oxyfluorfen-butyl or fluazifop-butyl. Its activity and herbicidal effect are not a simple superposition of the activities of each component. Compared with existing single formulations, it has significant control effects on plots with mixed infestations of various grass weeds and broadleaf weeds, can delay the development of weed resistance, has low pesticide residues, is safe, and meets the safety requirements of pesticide formulations.

[0132] Although the present invention has been described in detail above using general descriptions and specific implementation plans, it is obvious to those skilled in the art that some modifications or improvements can be made thereto based on the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An application of a herbicidal composition containing sulfonepyraclostrobin and diflufenac in controlling weeds in wheat fields, characterized in that: The active ingredients of the herbicidal composition include active ingredient A, active ingredient B and active ingredient C, wherein the active ingredient A is sulfonepyraclostrobin, the active ingredient B is diflufenacil, and the active ingredient C is fluazifop-butyl; the mass ratio of the active ingredients A, B and C in the herbicidal composition is 1-10:1-10:1-20.

2. The use according to claim 1, characterized in that The mass ratio of the active ingredient A, the active ingredient B and the active ingredient C in the herbicidal composition is 2-10:2-10:3-18.

3. The use according to claim 1, characterized in that The mass percentage of the active ingredient A, active ingredient B and active ingredient C in the herbicidal composition is 1-90%.

4. The use according to claim 3, characterized in that The mass percentage of the active ingredient A, active ingredient B and active ingredient C in the herbicidal composition is 10-80%.

5. The use according to claim 1, characterized in that In addition to the active ingredients, the herbicidal composition also includes agriculturally acceptable auxiliary ingredients, which are selected from one or more of wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreeze agents, defoaming agents, solvents, preservatives, stabilizers, synergists or carriers.

6. The application according to claim 1, characterized in that: The herbicidal composition is prepared into a formulation form permitted in agriculture.

7. The application according to claim 6, characterized in that: The dosage forms include soluble solution, suspension, water-dispersible granules and dispersible oil suspension.

8. The use according to claim 1, characterized in that The wheat field weeds are one or more of brome, wild oats, aestivum, multiflora ryegrass, Japanese foxtail, coleus, sedge, bluegrass, sowwort, shepherd's purse, bottle grass, chickweed, wheat family, quinoa, sorrel, cupflower, field bindweed, prickly lettuce, sonchus, snake intestine, speedwell, cleaver, vetch, and humulus.

9. The use according to claim 1, characterized in that The herbicidal composition is applied to the unwanted plants or the locus where they grow.

Images