Seed treatment agent containing mefenpyr-ethyl and application thereof
By providing a seed treatment agent containing thymethic acid, the problem of reducing the activity of some weeds when mixed with herbicide is solved, effective protection of grass family crops is achieved, and the harm of herbicides is avoided, while maintaining the prevention effect of herbicides is maintained.
Patent Information
- Application Number
- CN202411827309.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-03-21
AI Technical Summary
When used in mixture with herbicide, the effect of removing some weeds may be reduced.
A seed treatment agent containing oxalisole is provided, which is prepared into a seed treatment agent by combining oxalisole as an active ingredient with a pesticide-enabled auxiliary ingredient. This seed treatment agent can be used to treat seeds from grass family crops and protect the crop from herbicides.
This seed treatment agent can effectively protect corn, wheat, rice and sorghum from the damage of herbicide residues in the soil and spray herbicides during the seedling stage, while not affecting the herbicide's prevention effect on weeds.
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Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of weed control, and particularly relates to a seed treatment agent containing cloquintocet-mexyl and application thereof. Background Art
[0002] Cloquintocet-mexyl, also known as cloquintocet-mexyl, is an antidote for heterocyclic herbicides developed and marketed by Ciba-Geigy. Cloquintocet-mexyl CAS: 99607-70-2, molecular formula: C 18 H 22 ClNO3, molecular weight: 335.825, structural formula is as follows:
[0003]
[0004] As an antidote in plants, cloquintocet-butyl is specially used to improve the resistance of wheat and rye to herbicides. It is a herbicide safener specifically for cloquintocet-butyl, protecting crops from the damage of the herbicide cloquintocet-butyl. Cloquintocet-butyl has been put into the domestic market and widely used. It can enhance the glycosylation reaction of cloquintocet-butyl in wheat. After the crops are treated with cloquintocet-butyl, on the one hand, the vacuolar transport activity of the conjugate of glucose anhydride and glutathione can be improved, and on the other hand, the activity of glutathione-S-transferase (GST) can be enhanced.
[0005] When clobacon-butyl is mixed with herbicides, weeds will also come into contact with safeners, which may reduce the phytotoxicity of herbicides to weeds, that is, reduce the weed control effect of herbicides. For example, when clobacon-butyl is mixed with clomazone, the activity of clomazone against weeds such as multiflora ryegrass, brome, foxtail and Gunn's pseudohard grass will be reduced. In addition, when clobacon-butyl is mixed with mesosulfuron, the control effect of the agent on Aegilops tauschii will also be seriously affected.
[0006] Based on this, the present invention provides a seed treatment agent containing cloquintocet-mexyl to solve the problem of reduced activity against some weeds when cloquintocet-mexyl is mixed with a herbicide.
[0007] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention
[0008] The object of the present invention is to provide a seed treatment agent containing cloquintocet-mexyl and use thereof, so as to solve the problem existing in the mixed use of cloquintocet-mexyl and herbicides in the background art.
[0009] To achieve the above object, the present invention provides the following technical solutions:
[0010] A seed treatment agent containing cloquintocet-mexyl, characterized in that the seed treatment agent is prepared with cloquintocet-mexyl as an active ingredient and supplemented with auxiliary ingredients permitted in pesticide science.
[0011] More specifically, the auxiliary component is selected from one or more of a dispersant, a wetting agent, a film former, a thickener, an antifreeze agent, a defoaming agent, a warning color and deionized water.
[0012] More specifically, the seed treatment agent is prepared from the following ingredients, measured in weight percentage: 0.05-50% of clofonate-mexyl, 1-3% of dispersant, 0.5-4% of wetting agent, 4-6% of film-forming agent, 0.1-0.6% of thickener, 2-4% of antifreeze agent, 0.1-1% of defoamer, 1-3% of warning color, and deionized water is added to 100%.
[0013] More specifically, the content of cloquintocet-mexyl is 5-20%.
[0014] More specifically, the dispersant is selected from one or more of alkylbenzene sulfonates, alkylnaphthalene sulfonates, cresol sulfonic acid, naphthol sulfonic acid formaldehyde condensation products, N-methyl fatty acyl taurate, lignin sulfonate, alkylphenol polyoxyethylene ether home formaldehyde condensation product sulfate, fatty alcohol polyoxyethylene ether sulfate, glycerol fatty acid polyoxyethylene ether, vegetable oil ethylene oxide adducts and derivatives thereof, alkylphenol polyoxyethylene ether and formaldehyde condensation products;
[0015] The wetting agent is selected from one or more of nonylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, alkanolamide polyoxyethylene ether, phosphate or sulfate ester salt, alkyl polyoxyethylene ether succinate sulfonate, terminal olefin sulfonate, alkylbenzene sulfonate, alkylnaphthalene sulfonate, low molecular weight naphthalene sulfonate formaldehyde condensate, lignin sulfonate and polycarboxylate;
[0016] The film-forming agent is selected from one or more of polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyvinyl acetate, polyvinyl pyrrolidone (PVP), sodium polyacrylate, rosin, polystyrene, styrene-acrylic emulsion, acrylic resin polymer, sodium hydroxymethyl cellulose, gelatin, gum arabic, sodium alginate, agar, polysaccharide polymer compounds and cellulose derivatives;
[0017] The thickener is selected from one or more of xanthan gum, magnesium aluminum silicate, organic bentonite, bentonite and light calcium carbonate;
[0018] The antifreeze agent is one or more of ethylene glycol, propylene glycol, glycerol, urea, ammonium sulfate, sodium sulfate and sodium chloride;
[0019] The defoamer is selected from one or more of an organosilicon defoamer, a polyether defoamer, a higher alcohol, tributyl phosphate and a polysiloxane defoamer;
[0020] The warning color is selected from one or more of alkaline rhodamine, acid scarlet, magenta, water-based rose bengal and carmine.
[0021] More specifically, the dispersant is selected from one or more of Sober SOPA, sodium dodecyl sulfate, sodium butyl naphthalene sulfonate and calcium lignin sulfonate; the wetting agent is selected from one or more of TW-80, OP-10, NP-10 and Nongru 1601#.
[0022] The present invention also provides use of the seed treatment agent in preventing or alleviating crop herbicide damage. The seed treatment agent prevents or alleviating crop herbicide damage by treating crop seeds.
[0023] More specifically, the crop is a grass crop.
[0024] More specifically, the herbicide is a sulfonylurea, an aryloxyphenoxy propionate, an amide, a sulfonamide, a cyclohexenone, a triketone, a triazolinone and / or an isoxazolinone.
[0025] More specifically, the herbicide is clomazone, clomazone, nitrosulfuron, sulfotrione, cypermethrin, mesotrione, fluazifop-butyl, penoxsulam, pinoxaden, clodinafop-butyl, fenoxaprop-butyl, metolachlor, pretilachlor, butachlor, clethodim and / or sethoxydim.
[0026] Compared with the prior art, the present invention has the following beneficial effects:
[0027] The seed treatment agent containing cloquintocet-butyl of the present invention can protect gramineous crops such as corn, wheat, rice and sorghum from crop damage caused by herbicide residues in the soil through seed treatment, and can also protect crops from damage caused by herbicide spraying on stems and leaves at the seedling stage. Compared with spraying cloquintocet-butyl and herbicides in combination, the seed treatment agent containing cloquintocet-butyl of the present invention can prevent weeds from contacting safeners, effectively protecting crops from herbicide damage while not affecting the weed control effect of the herbicide. DETAILED DESCRIPTION
[0028] The following is a clear and complete description of the technical solution of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the present invention.
[0029] In the following examples, if no specific technology or conditions are specified, the technology or conditions described in the literature in this field or the product instructions are used. If the manufacturer of the reagents or instruments used is not specified, they are all conventional products that can be purchased through regular channels. Unless otherwise specified, the percentage content in all embodiments and experimental examples of the present invention refers to the percentage content by weight.
[0030] In the following examples, the clofenac-butyl suspended seed coating agent was prepared using the existing technology: the raw materials were sheared with a high-speed shear emulsifier for 20 minutes, poured into a sand mill and ground for 2 hours, and filtered through a 100-mesh sieve to obtain the clofenac-butyl suspended seed coating agent.
[0031] Among the following additives, the degree of polymerization of polyvinyl alcohol is about 500, the viscosity of sodium carboxymethyl cellulose is 800-1200 Pa.s, and the polyether defoamer is a C16-18 polyether compound.
[0032] Example 12% cloquintocet-butyl suspension seed coating agent
[0033] 2% of clofodinate, 3% of sodium lignin sulfonate, 2% of sodium dodecyl sulfonate, 3% of sodium chloride, 0.5% of xanthan gum, 3% of polyvinyl alcohol, 3% of bentonite, 3% of ethylene glycol, 0.2% of silicone defoamer, 2% of scarlet, and deionized water is added to 100%.
[0034] Example 25% cloquintocet-butyl suspension seed coating agent
[0035] 5% clofodinate, 3% sodium lignin sulfonate, 2% TW-80, 3% urea, 0.5% sodium carboxymethyl cellulose, 1% polyvinyl alcohol, 2% magnesium aluminum silicate, 10% ethylene glycol, 0.2% organosilicon defoamer, 2% scarlet red, and deionized water is added to 100%.
[0036] Example 3 10% cloquintocet-butyl suspension seed coating agent
[0037] 10% cloquintocet-mexyl, 5% sodium dodecylbenzenesulfonate, 2% NNO, 3% urea, 0.5% sodium carboxymethyl cellulose, 1% polyvinyl alcohol, 4% light calcium carbonate, 10% glycerol, 0.5% polyether defoamer, 4% alkaline rose essence, and deionized water is added to 100%.
[0038] Example 4 15% cloquintocet-butyl suspension seed coating agent
[0039] 15% clofomex-mexyl, 2% sodium dodecylbenzenesulfonate, 2% NNO, 3% urea, 0.2% xanthan gum, 1% polyvinyl alcohol, 2% light calcium carbonate, 8% glycerol, 0.2% organosilicon defoamer, 2% scarlet red, and deionized water is added to 100%.
[0040] Example 5 Experiment on the effect of alleviating the herbicide residue in soil
[0041] 5.1 Seed treatment
[0042] Weigh 10g, 20g and 40g of the 2% cloquintocet-butyl suspension seed dressing agent of Example 1, add water to 40g respectively, mix well, stir into 1kg corn seeds, mix thoroughly, dry in a cool place, that is, the seed dressing amount is 10g / kg, 20g / kg and 40g / kg seed corn, and 40g of seeds treated with clean water are used as seed blank control.
[0043] 5.2 Preparation of poisonous soil
[0044] Weigh 0.0100 g of clomazone, fomesafen and mesosulfuron technical drugs respectively (based on the technical drug content), dissolve them in 1 mL of acetone, add 0.2 g of TWE 80, and then dilute with deionized water to a 100 mg / kg mother liquor. Dilute with deionized water to the required concentration when using.
[0045] Use the poisoned soil method to simulate herbicide soil residues. Take field soil, dry it in the shade, and pass it through a 20-mesh sieve. Take 1000g of dry soil, add the solution containing clomazone to prepare 0.5mg / kg clomazone poisoned soil. According to the same method, prepare 2mg / kg fomesafen and 1mg / kg mesosulfuron poisoned soil, and control the water content in the poisoned soil to 15%, and set the soil without herbicide and with a water content of 15% as the soil blank control.
[0046] 5.3 Experimental treatment
[0047] The prepared poisoned soil and control soil were placed in pots, and 5 corn seeds (variety Zhengdan 958) were sown in each pot, and repeated 4 times. They were placed in a light incubator at 25°C for cultivation. After 10 days, the fresh weight of the aboveground part of the corn plants was weighed, and the fresh weight inhibition rate and the pesticide injury relief rate were calculated.
[0048] 5.4 Calculation formula
[0049]
[0050] 5.5 Results
[0051] The results are shown in Table 1.
[0052] Table 1 Effect of 2% chlorpyrifos suspension seed coating agent on mitigation of herbicide damage to corn
[0053]
[0054] As shown in Table 1, when 0.5 mg / kg of clomazone, 2 mg / kg of fomesafen and 1 mg / kg of mesosulfuron remain in the soil, the inhibition rates of corn fresh weight are 73.28%, 83.64% and 57.50%, respectively. It can be seen that when herbicides such as clomazone, fomesafen or mesosulfuron remain in the soil, the phytotoxic effect on corn growth is obvious. After corn seeds are treated with 2% clomazone suspension seed dressing agent, the phytotoxicity mitigation rate of clomazone and fomesafen reaches more than 92.55%, and the phytotoxicity mitigation rate of mesosulfuron reaches more than 82.72%, and the mitigation effect is obvious. It can be seen that after corn seeds are treated with the clomazone suspension seed dressing agent containing clomazone, the phytotoxicity of corn caused by herbicides in the soil can be effectively alleviated, and the mitigation effect is significant.
[0055] Example 6 Experiment on controlling weeds in wheat fields using a combination of post-emergence herbicides
[0056] 6.1 Seed treatment
[0057] Weigh 100g of the 10% cloquintocet-butyl suspension seed dressing agent of Example 3, add water to 300g, mix well, and add to 10kg of wheat seeds (variety Zhengmai 9023), mix well, and dry in a cool place to obtain wheat seeds with a seed dressing amount of 10g / kg. 300g of seeds treated with clean water are used as seed blank controls.
[0058] 6.2 Experimental treatment
[0059] The above-mentioned wheat seeds were sown in the field at a sowing rate of 10 kg / mu. When the wheat grew to 4 leaves (1-2 tillers) and the weeds were basically all out, the following pesticides were sprayed: 5% pinoxaden EC 90 g / mu, 20% dichloroisothiazide EC 70 g / mu, 10% clodinafop-butyl EC 50 g / mu. The herbicide treatment was sprayed on the seed treatment and seed blank control fields. Each herbicide treatment was repeated 3 times, and the area of the plot was 24m 2 , and the treatment of spraying clean water was set as the blank control of the agent.
[0060] At the same time, the following pesticides were sprayed in the seed blank control field: 5% pinoxaden EC 90g / mu + 10% cloquintocet EC 50g / mu, 20% dichloroisothiazide EC 70g / mu + 10% cloquintocet EC 50g / mu, 10% cloquintocet EC 50g / mu + 10% cloquintocet EC 50g / mu. Each treatment was repeated 3 times, with a plot area of 24m 2 .
[0061] Preparation method of the above herbicide: weigh appropriate amount of herbicide original medicine, 20% methyl oleate, 15% OP-7, and the balance acetone, mix the above raw materials, ultrasonicate for 2 minutes, bottle and seal. According to the test, the prepared herbicide emulsifiable concentrate can be added to water and diffuse in a cloud-like state. After adding 1 mL of the preparation to 100 mL of water and shaking it well, there is no obvious oil separation or precipitation after standing for 30 minutes. The above agents are prepared and used immediately.
[0062] After 10 days, the wheat damage level was visually inspected. After 30 days, four points were randomly selected from each plot, with a height of 1 m 2 The fresh weight of the above-ground part of weeds was investigated and recorded, 20 wheat plants were taken at each point to investigate the number of tillers, and the weed control effect and the number of wheat tillers were calculated.
[0063] The results are shown in Table 2.
[0064]
[0065] Table 2 The control effect of 10% chlorpyrifos suspension seed coating agent combined with herbicide on weeds in wheat fields
[0066]
[0067] As shown in Table 2, without adding safener, 5% pinoxaden EC 90g / mu, 20% clomazone EC 70g / mu and 10% clodinafop-butyl EC 50g / mu all caused serious phytotoxicity to wheat. Ten days after application, wheat showed obvious phytotoxicity symptoms such as yellowing, and the phytotoxicity level reached level 3-4. Thirty days after application, the number of wheat tillers decreased by 2.6-3.1 compared with the blank control without application of the drug.
[0068] After the seeds were treated with the 10% cloquintocet-mexyl suspension seed coating agent of the present invention, the wheat plants had no obvious phytotoxicity symptoms from each herbicide. After 30 days of phytotoxicity, the number of wheat tillers was equivalent to that of the blank control without phytotoxicity. This indicates that the 10% cloquintocet-mexyl suspension seed coating agent of the present invention can significantly reduce the phytotoxicity of wheat sprayed with herbicides at the seedling stage.
[0069] In addition, by comparing the control effects of various treatments on multifloral ryegrass, it can be seen that mixing pinoxaden, clomazone or clodinafop-butyl with clodinafop-butyl can significantly reduce the control effect of the herbicide on multifloral ryegrass. However, treating wheat seeds with 10% clodinafop-butyl suspension seed coating agent does not affect the control effect of pinoxaden, clomazone or clodinafop-butyl herbicides on multifloral ryegrass when spraying wheat at the seedling stage. This shows that the 10% clodinafop-butyl suspension seed coating agent of the present invention can protect crops from the phytotoxicity of herbicides and will not affect the control effect of herbicides on seedling weeds.
[0070] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.
Claims
1. A seed treatment agent containing cloquintocet-mexyl, characterized in that: The seed treatment agent is prepared by using cloquintocet-mexyl as an active ingredient and supplemented with auxiliary ingredients permitted in pesticide science.
2. The seed treatment agent according to claim 1, characterized in that The auxiliary components are selected from one or more of a dispersant, a wetting agent, a film former, a thickener, an antifreeze agent, a defoaming agent, a warning color and deionized water.
3. The seed treatment agent according to claim 1, characterized in that The seed treatment agent is prepared from the following ingredients by weight percentage: 0.05-50% of cloquintocet-mexyl, 1-3% of dispersant, 0.5-4% of wetting agent, 4-6% of film-forming agent, 0.1-0.6% of thickener, 2-4% of antifreeze agent, 0.1-1% of defoamer, 1-3% of warning color, and deionized water is added to 100%.
4. The seed treatment agent according to claim 3, characterized in that The content of cloquintocet-mexyl is 5-20%.
5. The seed treatment agent according to claim 3, characterized in that The dispersant is selected from one or more of alkylbenzene sulfonate, alkylnaphthalene sulfonate, cresol sulfonic acid, naphthol sulfonic acid formaldehyde condensation product, N-methyl fatty acyl taurate, lignin sulfonate, alkylphenol polyoxyethylene ether home formaldehyde condensation product sulfate, fatty alcohol polyoxyethylene ether sulfate, glycerol fatty acid polyoxyethylene ether, vegetable oil ethylene oxide adduct and its derivatives, alkylphenol polyoxyethylene ether and formaldehyde condensation product; The wetting agent is selected from one or more of nonylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, alkanolamide polyoxyethylene ether, phosphate or sulfate ester salt, alkyl polyoxyethylene ether succinate sulfonate, terminal olefin sulfonate, alkylbenzene sulfonate, alkylnaphthalene sulfonate, low molecular weight naphthalene sulfonate formaldehyde condensate, lignin sulfonate and polycarboxylate; The film-forming agent is selected from one or more of polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyvinyl acetate, polyvinyl pyrrolidone (PVP), sodium polyacrylate, rosin, polystyrene, styrene-acrylic emulsion, acrylic resin polymer, sodium hydroxymethyl cellulose, gelatin, gum arabic, sodium alginate, agar, polysaccharide polymer compounds and cellulose derivatives; The thickener is selected from one or more of xanthan gum, magnesium aluminum silicate, organic bentonite, bentonite and light calcium carbonate; The antifreeze agent is one or more of ethylene glycol, propylene glycol, glycerol, urea, ammonium sulfate, sodium sulfate and sodium chloride; The defoamer is selected from one or more of an organosilicon defoamer, a polyether defoamer, a higher alcohol, tributyl phosphate and a polysiloxane defoamer; The warning color is selected from one or more of alkaline rhodamine, acid scarlet, magenta, water-based rose bengal and carmine.
6. The seed treatment agent according to claim 3, characterized in that The dispersant is selected from one or more of Sober SOPA, sodium dodecyl sulfate, sodium butyl naphthalene sulfonate and calcium lignin sulfonate; The wetting agent is selected from one or more of TW-80, OP-10, NP-10 and Nongru 1601#.
7. Use of the seed treatment agent according to claim 1 in preventing or alleviating crop herbicide damage, characterized in that: The seed treating agent prevents or alleviates crop herbicide damage by treating crop seeds.
8. The use according to claim 7, characterized in that The crops are grass crops.
9. The use according to claim 7, characterized in that: The herbicide is a sulfonylurea, an aryloxyphenoxy propionate, an amide, a sulfonamide, a cyclohexenone, a triketone, a triazolinone and / or an isoxazolinone.
10. The use according to claim 7, characterized in that The herbicide is clomazone, clomazone, nitrosulfuron, sulfotrione, cypermethrin, mesotrione, fluazifop-butyl, penoxsulam, pinoxaden, clodinafop-butyl, fenoxaprop-butyl, metolachlor, pretilachlor, butachlor, clethodim and / or sethoxydim.