A composition that can alleviate herbicide damage and its application

Abstract

This invention relates to the field of agricultural technology, specifically to a composition that can alleviate herbicide damage and its application. The invention combines aminoethyl ester and pyrazosulfuron-methyl in a weight ratio of 1:1-80, exhibiting a significant synergistic effect and demonstrating a significantly better mitigation effect on herbicide damage than a single component. Applying the above-mentioned composition for alleviating herbicide damage, either together with or separately from herbicides, can effectively reduce herbicide damage to crops and minimize economic losses.

Description

Technical Field

[0001] This invention relates to the field of agricultural technology, and more specifically, to a composition that can alleviate herbicide damage and its application. Background Technology

[0002] Weeds are a significant factor affecting high and stable crop yields, and the most important measure for weed control in production is the application of herbicides. However, due to changes in environmental conditions, inadequate application techniques, and the non-ideal selectivity of herbicides themselves, herbicide damage frequently occurs in production, often causing serious losses.

[0003] Mesosulfuron-methyl is a core herbicide for controlling noxious grass weeds (such as jointed goatgrass and bromegrass) in wheat fields. However, it has a narrow phytotoxicity window and high risk. Overdosing or low-temperature stress can easily lead to yellowing, stunting, and root damage, and in severe cases, death of the central leaf and reduced tillering. Field cases show that overdosing (e.g., active ingredient dosage exceeding 30 g / hm) can cause significant damage. 2 If frost occurs after pesticide application, wheat yellowing and seedling death rates can reach 10% to 30%.

[0004] Fenoxaprop-P-ethyl, also known as Pfoma, Weiba, or Weili, is a formulation containing a safener. It is a commonly used herbicide for controlling grassy weeds such as wild oats and barley. Overdosing or application during the jointing stage can easily cause yellowing and stunting. The safener can significantly reduce the risk. With overdosing, wheat shows varying degrees of growth inhibition. Although the control efficacy is improved, the risk of phytotoxicity also increases significantly.

[0005] Sodium iodosulfuron is often combined with mesosulfuron (such as "Kuoshima"). The risk of phytotoxicity from combined formulations is higher than that of single-agent formulations. Low temperatures or weak seedling beds can easily lead to leaf yellowing, stunted growth, and hindered root development. Some varieties may exhibit "stunted growth," which usually recovers gradually after greening up. Risk warning: Do not use when the daily maximum temperature is below 12℃ or after the jointing stage.

[0006] Pyroxasulfone is preferred for soil-applied herbicides. Foliar application or overdosing can easily lead to decreased emergence rate and inhibited tillering. Foliar application at the recommended dosage is relatively safe.

[0007] It is evident that herbicides have strict application periods and conditions; improper use can cause severe phytotoxicity, affecting crop growth and yield. Therefore, developing herbicide mitigators that significantly alleviate herbicide damage is of great importance for ensuring production safety. Summary of the Invention

[0008] The purpose of this invention is to provide a composition and formulation thereof that can effectively alleviate herbicide damage, for the purpose of mitigating herbicide damage caused by improper use of herbicides.

[0009] To achieve the above-mentioned objectives, the present invention provides the following technical solution.

[0010] One aspect of the present invention relates to a composition that can alleviate herbicide damage, the composition comprising aminoethyl ester and pyrazole herbicide, wherein the weight ratio of aminoethyl ester and pyrazole herbicide is 1:1-80.

[0011] Preferably, the weight ratio of aminoethyl ester and pyrazole ester is 1:4.5-50.

[0012] More preferably, the weight ratio of aminoethyl ester and pyrazole ester is 1:6-40.

[0013] Diethylaminoethanol hexanoate (DA-6) is a plant growth regulator that promotes crop growth, improves photosynthetic efficiency, and increases crop yield and quality. Mefenpyr-diethyl is a herbicide safener that protects cereal crops such as wheat and barley from phytotoxicity by specific herbicides; it has no herbicidal activity itself. This invention combines DA-6 and mefenpyr-diethyl, resulting in a significant synergistic effect and a significantly better mitigation of herbicide damage compared to using either ingredient alone.

[0014] Another aspect of this invention relates to a herbicidal composition comprising an active herbicidal ingredient and the aforementioned composition that mitigates herbicide phytotoxicity. This invention does not particularly limit the type of active herbicidal ingredient; all existing known active herbicidal ingredients can be used in this invention, especially active herbicidal ingredients applicable to cereal crops, including but not limited to herbicides specifically for wheat and barley, such as mesosulfuron-methyl, quizalofop-P-ethyl, pinoxaflutole, sodium mesosulfuron-methyl, and sulfopyrazosulfuron. This invention, by combining aminoethyl ester and pyrazosulfuron-methyl, can significantly alleviate the phytotoxicity caused by the aforementioned herbicides.

[0015] In the above-mentioned herbicidal composition of the present invention, the active herbicidal component and the composition that can alleviate herbicide damage can be prepared independently or mixed into the same system.

[0016] Another aspect of the present invention relates to formulations containing the above-described composition for mitigating herbicide phytotoxicity, or formulations containing the above-described herbicide composition.

[0017] In the formulation containing the above-mentioned herbicide-relieving composition according to the present invention, the aminoethyl ester and pyrazosulfuron account for 0.1% to 99% of the total weight of the herbicide-relieving composition formulation, preferably 10% to 80%, and more preferably 20% to 60%. This formulation is used as a herbicide-relieving agent and can be packaged independently as a product, and can be used together with or alone with a herbicide.

[0018] In the formulation containing the above-mentioned herbicidal composition according to the present invention, the aminoethyl ester and pyrazosulfuron account for 1% to 80% of the total weight of the herbicidal composition formulation, preferably 20% to 70%, and more preferably 30% to 60%. This formulation contains both the active herbicidal ingredient and a composition that can alleviate herbicide phytotoxicity, and can be used independently as a safe herbicidal formulation, thereby improving the safety threshold of the herbicidal formulation during use.

[0019] The formulations described in this invention can be supplemented with agriculturally acceptable adjuvants and / or carriers, and processed as needed into any production-acceptable dosage form, such as water-dispersible granules, wettable powders, suspension emulsions, microemulsions, water-in-oil emulsions, emulsifiable concentrates, oil suspensions, suspensions, soluble powders, dry suspensions, aqueous solutions, oils, and microcapsule suspensions, with water-dispersible granules and wettable powders being the preferred dosage forms.

[0020] The agriculturally acceptable adjuvants and / or carriers described in this invention include, but are not limited to: wetting agents, dispersants, defoamers, disintegrants, separating agents, binders, solvents, emulsifiers, co-emulsifiers, stabilizers, thickeners, density adjusters, pH adjusters, antifreeze agents, preservatives, penetrants, carriers, fillers, etc.

[0021] In one embodiment, when the composition of the present invention that can alleviate herbicide damage is formulated into water-dispersible granules, it comprises the following components and weight contents: amino acid ester 1%~50%, pyrazole herbicide ester 2%~70%, wetting agent 1%~3%, dispersant 5%~20%, disintegrant 1%~5%, release agent 0.5%, defoamer 0.5%, filler and binder 0.1%~5% to make up the balance.

[0022] For example, the preparation method can be as follows: mix aminoethyl ester technical, pyrazole oxadiazon technical, wetting agent, dispersant, disintegrant, isolating agent, defoamer, and filler, mix them evenly in a mixing tank, and pulverize them into a powder mixture by an air jet mill; then, while adding the powder mixture to an inclined rotating disc, spray an aqueous solution containing a binder to granulate it; and finally, after drying and sieving, obtain the product.

[0023] As one embodiment, when the composition of the present invention that can alleviate herbicide damage is made into a wettable powder, it contains the following components and weight contents: amino acid ester 1%~50%, pyrazole herbicide ester 2%~60%, wetting agent 3%~15%, dispersant 3%~15%, defoamer 0.1%~3%, and filler to make up the balance.

[0024] For example, the preparation method can be as follows: mix amino acid ester technical, pyrazole oxadiazon technical, wetting agent, dispersant, defoamer and filler, mix them evenly in a mixing tank, pulverize them by air jet mill and then mix them evenly again.

[0025] The wetting agent may be one or more of the following: pull-apart powder, sodium dodecylbenzene sulfonate, sodium lauryl sulfate, sodium dioctyl succinate sulfonate, sodium diisopropyl naphthalene sulfonate, nonylphenol polyoxyethylene ether (NP), octylphenol polyoxyethylene ether, tridecyl alcohol polyoxyethylene ether, sodium dodecyl sulfate, fatty alcohol ethoxylate, alkylphenol ethoxylate, naphthalene sulfonate, and sodium octadecyl succinate.

[0026] The dispersant may be one or more of the following: sodium lignosulfonate, calcium lignosulfonate, ammonium lignosulfonate, potassium lignosulfonate, alkyl naphthalene sulfonate formaldehyde condensate, sodium dibutylnaphthalene sulfonate, sodium oleate methyl aminoethyl sulfonate, polyvinyl alcohol, gum arabic, and sodium naphthalene sulfonate formaldehyde condensate.

[0027] The defoamer may be one or more of the following: isooctanol, isoamyl alcohol, stearic acid, lauric acid, ethylene oxide-propylene oxide block copolymer, and nonionic soap defoamers;

[0028] The disintegrant can be one or more of thiamine, calcium chloride, and aluminum chloride;

[0029] The separating agent can be one or more of amorphous silica gel and aerosol silica gel.

[0030] The adhesive may be one or more of polyvinyl acetate polymer, polyvinyl alcohol, ethylene-vinyl acetate copolymer, and soluble starch;

[0031] The filler may be one or more of the following: bentonite, kaolin, activated clay, attapulgite, diatomaceous earth, clay, light calcium carbonate, fumed silica, and talc.

[0032] The fourth aspect of the present invention relates to the use of the above-described compositions and / or formulations that can alleviate herbicide damage in mitigating crop damage caused by herbicides.

[0033] Preferably, the above-mentioned compositions and / or formulations that can alleviate herbicide damage are used to alleviate herbicide damage to cereal crops, including but not limited to wheat, barley, corn, and soybeans.

[0034] Preferably, the herbicide-mitigation-mitigation composition and / or formulation is used to mitigate crop damage caused by herbicides such as mesosulfuron-methyl, quizalofop-P-ethyl, quizalofop-P-ethyl, sodium mesosulfuron-methyl, and sulfonylpyrazosulfuron.

[0035] The methods of using the compositions or formulations that can alleviate herbicide damage according to the present invention include, but are not limited to, preparing them into mixed formulations, tank mixing for use, or adding other active ingredients or adjuvants. As one embodiment, the compositions or formulations that can alleviate herbicide damage according to the present invention may be used alone or simultaneously with herbicides before or after herbicide damage occurs.

[0036] In the application described in this invention, the dosage of the herbicide-mitigating composition is 10-450 g / hm. 2 Preferred concentration: 30-450 g / hm 2 .

[0037] All raw materials and reagents used in this invention are commercially available and readily accessible. For example, acetamiprid technical grade can be purchased from Henan Zhengshi Chemical Products Co., Ltd., and pyrazosulfuron technical grade can be purchased from Jiangsu Tianrong Group Co., Ltd.

[0038] The present invention has the following positive and beneficial effects:

[0039] 1. The composition of the present invention can alleviate herbicide damage, effectively reduce herbicide damage to crops, and reduce economic losses;

[0040] 2. The combination of aminoethyl ester and pyrazole herbicides in this invention has a significant synergistic effect, and its effect on alleviating herbicide damage is significantly better than that of a single component.

[0041] 3. The composition of the present invention can alleviate the damage caused by herbicides, has good fast-acting properties, takes effect quickly, and has low toxicity to humans and animals. Detailed Implementation

[0042] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention. Where specific techniques or conditions are not specified in the examples, they should be performed according to the techniques or conditions described in the literature in this field, or according to the product instructions. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased from legitimate channels. Unless otherwise specified, all percentages in all examples of this invention refer to weight percentages.

[0043] (I) Formulation Examples

[0044] Formulation Example 1: 36% aminoethyl ester·pyrazole herbicide water dispersible granules

[0045] 9% amino acid ester, 27% pyrazole oxalate, 2% sodium lauryl sulfate, 10% potassium lignosulfonate, 2% calcium chloride, 0.5% amorphous silica gel, 0.5% isoamyl alcohol, 1% polyvinyl acetate polymer, and bentonite to make up the balance.

[0046] The technical grade of aminoethyl ester, technical grade of pyrazole ester, sodium lauryl sulfate, potassium lignosulfonate, calcium chloride, amorphous silica gel, isoamyl alcohol, and bentonite are mixed and homogenized in a mixing tank. The mixture is then pulverized into a powder mixture using an air jet mill. The powder mixture is then added to an inclined rotating disc while an aqueous solution containing polyvinyl acetate polymer is sprayed on it for granulation. The product is obtained after drying and sieving.

[0047] Formulation Example 2: 58.5% aminoethyl ester·pyrazole herbicide water dispersible granules

[0048] Amino acid ester 4.5%, pyrazole ester 54%, sodium dodecylbenzene sulfonate 3%, sodium methyl aminoethyl sulfonate 15%, aluminum chloride 3%, aerosol silica gel 0.5%, lauric acid 0.5%, polyvinyl alcohol 1.5%, diatomaceous earth to make up the balance.

[0049] The technical grade of aminoethyl ester, technical grade of pyrazole ester, sodium dodecylbenzene sulfonate, sodium methyl aminoethyl sulfonate oleate, aluminum chloride, aerosol silica gel, lauric acid, and diatomaceous earth are mixed and homogenized in a mixing tank. The mixture is then pulverized into a powder mixture using an air jet mill. The powder mixture is then granulated by spraying an aqueous solution containing polyvinyl alcohol onto an inclined rotating disc. After drying and sieving, the final product is obtained.

[0050] Formulation Example 3: 30% aminoethyl ester·pyrazole herbicide wettable powder

[0051] 3% amino acid ester, 27% pyrazole oxalate, 10% sodium diisopropyl naphthalene sulfonate, 10% alkyl naphthalene sulfonate formaldehyde condensate, 1% stearic acid, and kaolin to make up the balance.

[0052] The technical grade of aminoethyl ester, technical grade of pyrazole ester, sodium diisopropyl naphthalene sulfonate, alkyl naphthalene sulfonate formaldehyde condensate, stearic acid, and kaolin are mixed and stirred evenly in a mixing tank, then pulverized by an air jet mill and mixed evenly again.

[0053] Formulation Example 4: 37% aminoethyl ester·pyrazole herbicide wettable powder

[0054] 1% aminoethyl ester, 36% pyrazole ester, 12% sodium octadecyl succinate, 14% calcium lignosulfonate, 1% isooctyl alcohol, and silica to make up the balance.

[0055] Mix the technical grade amino acid ester, technical grade pyrazole ester, sodium octadecyl succinate, calcium lignosulfonate, isooctanol, and silica in a mixing tank, then pulverize them using an air jet mill and mix them evenly again.

[0056] (II) Indoor Biometric Testing Examples

[0057] The indoor bioassay examples of this invention were conducted according to the "Guidelines for Indoor Bioassay Testing of Pesticides - Herbicides Part 4: Activity Assay Test - Foliar Spray Method (NY / T 1155.4—2006)" and "Guidelines for Indoor Bioassay Testing of Pesticides - Herbicides Part 7: Determination of Combined Effects of Mixtures (NY / T 1155.7—2006)". Through indoor bioassays, the combined effect of two components in a certain proportion in mitigating herbicide phytotoxicity was clarified. The test methods are as follows:

[0058] Accurately weigh 5.2632 g of 95% mesosulfuron technical grade and dissolve it in 50 mL of N,N-dimethylformamide to prepare a mesosulfuron stock solution with a concentration of 100 g / L. During the experiment, take an appropriate amount of the mesosulfuron stock solution and dilute it with an appropriate amount of 0.1% Sodium 80 aqueous solution to prepare the test herbicide solution.

[0059] Accurately weigh 5.1021 g of 98% aminoethyl technical grade and dissolve it in 50 mL of water to prepare an aminoethyl stock solution with a concentration of 100 g / L. Accurately weigh 26.1780 g of 95.5% pyrazole herbicide technical grade and dissolve it in 50 mL of acetone to prepare a pyrazole herbicide stock solution with a concentration of 500 g / L. During the experiment, take appropriate amounts of both aminoethyl and pyrazole herbicide stock solutions and dilute them with an appropriate amount of 0.1% Soil Temperature 80 aqueous solution to prepare the test herbicide damage mitigation solutions.

[0060] A pot experiment was conducted using wheat, specifically the variety Jimai 22, as the target. Seedlings were raised in plastic pots (12cm in diameter, 11cm in height) in a greenhouse. Before pesticide application, seedlings were thinned to 10 uniform plants per pot. Methyl disulfiram was applied as a foliar spray at the one-leaf stage of the wheat at a dosage of 13.5 g ai / hm². 2 Five days after treatment with mesosulfuron-methyl, a foliar spray to alleviate phytotoxicity was applied, with each treatment repeated four times at a rate of 450 L / hm². 2 Fourteen days after treatment with the mitigating agent, the fresh weight of each pot of wheat was weighed, and the phytotoxicity index E for each treatment was calculated.

[0061] Pesticide damage index E (%) =

[0062] Where: PT—fresh weight of the treatment group;

[0063] CK – Fresh weight of the blank control group.

[0064] Based on the herbicide damage index of wheat under each treatment, the herbicide damage mitigation rate E was calculated. a :

[0065] Remission rate E a(%) =

[0066] Where: T—the final phytotoxicity index after herbicide treatment followed by mitigation agent treatment;

[0067] C – The final phytotoxicity index after herbicide treatment without mitigation treatment.

[0068] The Gowing method was used to evaluate the combined effect of the two components in a certain proportion in alleviating wheat herbicide damage. The theoretical alleviation rate E after the combination was determined. b The calculation formula is:

[0069] Theoretical remission rate E b (%) =

[0070] In the formula: X — the relief rate when the dosage of component A of the relief agent is P;

[0071] Y – Relief rate when component B of the relief agent is used at a dosage of Q;

[0072] E b —The theoretical relief rate after mixing component A (at a dosage of P) and component B (at a dosage of Q) of the relief agent;

[0073] E a —The actual relief rate after mixing component A (at a dosage of P) and component B (at a dosage of Q) of the relief agent.

[0074] E a – E b >0 indicates a synergistic effect; E a – E b <0 indicates antagonistic effect; E a – E b =0 indicates an additive effect.

[0075] Table 1 shows the dosage of each herbicide component, phytotoxicity index, and phytotoxicity mitigation effect. Biochemical tests showed that mesosulfuron-methyl treatment caused significant herbicide damage to wheat, with a phytotoxicity index of 53.7%. Five days after mesosulfuron-methyl treatment, the mitigation effect varied significantly among the treatments. Ammonium chloride was used alone at a dosage of 6–9 g ai / hm². 2 The remission rate of herbicide damage was only 0.6%~2.0%, which was basically ineffective; pyrazosulfuron-methyl was used alone at a dosage of 13.5~432 g ai / hm. 2The herbicide damage mitigation rate was 13.4%–36.9%, showing good mitigation effects. The combined treatment of aminoethyl ester and pyrazole herbicide resulted in a mitigation rate of 15.8%–67.6%, significantly higher than that of aminoethyl ester or pyrazole herbicide alone, demonstrating a significant synergistic effect in mitigating herbicide damage. The ratio of aminoethyl ester to pyrazole herbicide was within the range of 1:1–80. a - E b The values ​​ranged from 0.6% to 34.0%, indicating that both had a synergistic effect when mixed in a ratio of 1:1 to 80. The ratio of aminoethyl ester to pyrazole herbicide was in the range of 1:4.5 to 50. E a - E b The values ​​ranged from 10.7% to 34.0%, indicating that the two compounds exhibited a significant synergistic effect when mixed in a ratio of 1:4.5 to 50. The ratio of aminoethyl ester to pyrazole herbicide was between 1:6 and 40. E a - E b The values ​​range from 20.0% to 34.0%, indicating that the synergistic effect is more pronounced when the two are mixed in a ratio of 1:6 to 40.

[0076] Table 1. Indoor bioassay results of the effects of different ratios of aminoethyl ester and pyrazole-methyl on herbicide phytotoxicity mitigation.

[0077] (III) Examples of Field Trials

[0078] The field efficacy test examples of this invention were conducted in accordance with the "Guidelines for Field Efficacy Tests of Pesticides (I) Herbicides for the Control of Weeds in Wheat Crops (GB / T 17980.41-2000)". Field plot trials were used to verify the results of the indoor bioassays and to clarify the field effect of the two components, when combined in a certain proportion, on mitigating herbicide phytotoxicity. The test methods are as follows:

[0079] The preparation method of the reagent and the calculation method of the results are the same as those in the indoor biological test examples.

[0080] After winter wheat turns green but before it joints, first spray the stems and leaves with mesosulfuron-methyl at a dosage of 27 g ai / hm. 2 450 L / hm 2 Each treatment was repeated four times, with each plot measuring 25 m², arranged in a randomized block design. Seven days after spraying with mesosulfuron-methyl, wheat showed obvious yellowing and stunting; a mitigating agent was immediately applied via foliar spray. Thirty days after mitigating agent treatment, a survey was conducted, with four randomly selected sampling points (0.25 m²) from each plot. 2 The aboveground fresh weight of all wheat seedlings within the surveyed sampling points was determined, and the herbicide damage index E and the remission rate E for each treatment were calculated. a Theoretical remission rate E b .

[0081] The experiment was conducted in Wagu Village, Nanhe District, Xingtai City, Hebei Province, using the wheat variety Jimai 22. The dosage of each herbicide, phytotoxicity index, and phytotoxicity mitigation effect are shown in Table 2. Field trial results showed that mesosulfuron-methyl treatment caused significant herbicide damage to wheat, with a phytotoxicity index reaching 46.2%. Seven days after mesosulfuron-methyl treatment, the mitigation effect varied significantly among the treatments. Ammonium chloride was used alone at a dosage of 6–9 g ai / hm². 2 The rate of relief from herbicide damage is only 0.4%~0.9%, which is basically ineffective; when pyrazosulfuron is used alone, the dosage is 54~108 g ai / hm. 2 The herbicide damage mitigation rate was 16.9%~24.0%, indicating a good mitigation effect. The treatment with the combination of aminoethyl ester and pyrazole herbicide described in this invention, with an aminoethyl ester dosage of 6 g ai / hm... 2 The dosage of pyrazole herbicide is 54 g ai / hm. 2 The phytotoxicity relief rate was 47.4%, E a - E b Value 30.2%; Aminoflavone dosage 9 g ai / hm 2 The dosage of pyrazole herbicide is 108 g ai / hm. 2 The phytotoxicity relief rate was 68.0%, E a - E b The value is 43.3%. The combination of aminoethyl ester and pyrazole herbicide described in this invention has a significantly higher effect on alleviating herbicide damage than aminoethyl ester or pyrazole herbicide alone, and has a significant synergistic effect on alleviating herbicide damage.

[0082] Table 2. Field trial results of the mitigation effect of the mixture of aminoethyl ester and pyrazole-methyl on herbicide phytotoxicity.

[0083] This invention has been described through specific embodiments. Those skilled in the art can refer to the content of this invention and appropriately modify the raw materials, process conditions, and other aspects to achieve other corresponding objectives. Such modifications do not depart from the content of this invention, and all similar substitutions and alterations are considered to be included within the scope of this invention, as they do not depart from the spirit of this invention.

Claims

1. A composition that can alleviate herbicide damage, characterized in that, It includes aminoethyl ester and pyrazole herbicide, wherein the weight ratio of aminoethyl ester to pyrazole herbicide is 1:1-80.

2. The composition according to claim 1, characterized in that, The weight ratio of the amino acid ester and the pyrazole herbicide is 1:4.5-50.

3. The composition according to claim 1, characterized in that, The weight ratio of the amino acid ester and the pyrazole herbicide is 1:6-40.

4. A herbicidal composition, characterized in that, It includes active herbicidal ingredients and the composition according to any one of claims 1 to 3 that can alleviate herbicide damage.

5. A formulation comprising the herbicide composition according to any one of claims 1-3 or the herbicide composition according to claim 4.

6. The formulation according to claim 5, characterized in that, The amino acid ester and pyrazole herbicides account for 0.1% to 99% of the total weight of the herbicide-relieving composition formulation.

7. The formulation according to claim 5, characterized in that, The amino acid ester and pyrazole herbicide account for 1% to 80% of the total weight of the herbicidal composition formulation.

8. The use of a composition according to any one of claims 1-3 that can alleviate herbicide damage, or an formulation containing the composition according to any one of claims 1-3, in alleviating herbicide damage to crops.

9. The application according to claim 8, characterized in that, The composition or formulation that can alleviate herbicide damage may be used alone or in combination with a herbicide before or after the occurrence of herbicide damage.

10. The application according to any one of claims 8 or 9, characterized in that, The dosage of the composition that can alleviate herbicide damage is 10-450 g / hm. 2 .

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