阅读说明：本技术 一种精草铵膦除草剂 (Fine glufosinate-ammonium herbicide ) 是由 秦龙 钱志刚 黄海燕 王清 周曙光 楼亿圆 徐亚卿 熊辉 马恒博 沈兰兰 于 2020-12-30 设计创作，主要内容包括：本发明涉及农药除草剂制备方法领域,特别涉及一种精草铵膦除草剂。该除草剂包括活性成分A、活性成分B、作物生理调剂、抗飘移剂、其它农药助剂；活性成分A为精草铵膦；抗飘移剂为高分子聚合物PEO、阴离子表面活性剂AOT、双烯丙基聚醚中的一种或几种。精草铵膦复配组合物扩大了杀草谱,丰富了使用方法,可用于茎叶喷雾和土壤喷雾,还能够延缓杂草对精草铵膦的抗性；可用于转基因作物田,用药成本降低,对于作物的安全风险降低；本发明所述的除草剂组合物中添加了抗飘移助剂,可以起到减少细小雾滴比重,增加雾滴抗漂移性能的作用。(The invention relates to the field of preparation methods of pesticide herbicides, and in particular relates to an accurate glufosinate-ammonium herbicide. The herbicide comprises an active ingredient A, an active ingredient B, a crop physiological regulator, an anti-drift agent and other pesticide auxiliaries; the active component A is refined glufosinate-ammonium; the anti-drift agent is one or more of high molecular polymer PEO, anionic surfactant AOT and diallyl polyether. The compound composition of the refined glufosinate-ammonium expands the weed control spectrum, enriches the use method, can be used for stem leaf spraying and soil spraying, and can also delay the resistance of weeds to the refined glufosinate-ammonium; the compound can be used for transgenic crop fields, the medication cost is reduced, and the safety risk to crops is reduced; the herbicide composition is added with the anti-drift auxiliary agent, so that the effects of reducing the proportion of fine fog drops and improving the anti-drift performance of the fog drops can be achieved.)

1. The glufosinate-ammonium herbicide is characterized by comprising an active ingredient A, an active ingredient B, a crop physiological regulator, an anti-drift agent and other pesticide auxiliaries;

the active ingredient A is glufosinate-ammonium;

the anti-drift agent is one or more of a high molecular polymer PEO, an anionic surfactant AOT and diallyl polyether.

2. A glufosinate herbicide according to claim 1, characterized in that the active ingredient B is selected from, but not limited to, glyphosate, acetochlor, butachlor, bensulfuron-methyl, pyrazosulfuron-ethyl, sulfometuron-methyl, chlorimuron-ethyl, mesotrione, dicamba, 2, 4-D, isoxaflutole, bromoxynil, imazethapyr, imazaquin, imazamethabenz, niamazole, or a salt thereof.

3. An glufosinate-ammonium herbicide according to claim 1, wherein the total weight of a and B in the herbicide is between 5% and 80%.

4. An glufosinate-ammonium herbicide according to claim 1, wherein the mass ratio of active ingredient a to active ingredient B is (1-79): (1-79).

5. The glufosinate-ammonium herbicide as claimed in any one of claims 1 to 4, wherein the crop physiological regulator is one or more of dithioacetal compounds, plant growth regulators and nutrition regulators, and the addition amount of the crop physiological regulator in the herbicide is 0.1-20%.

6. An glufosinate-ammonium herbicide as claimed in claim 5, wherein the dithioacetal compound is selected from the group consisting of (((4-benzyloxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((3-methylphenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4-nitrophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4- (trifluoromethyl) phenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, and (4- ((4- (trifluoromethyl) phenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((2-chlorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((3-chlorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4-chlorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, (4- ((2, 4-dichlorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4-fluorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4-bromophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, and ((4- ((4-bromophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal 4-chlorophenyl) dithioacetal, ((4- ((2-chloropyridyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((2-chlorothiazolyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, 2' - ((4- (benzyloxy) -3-methoxyphenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((3-methoxy-4- ((3-methylphenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((3-methoxy-4- ((4-methylphenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, di (4-chlorophenyl) dithioacetal, di (4-chloro-phenyl) methylene) di (4-chlorophenyl) dithioacetal, di (2-methoxy-4-phenyl) oxy) methylene) di (2-hydroxyethyl), 2,2' - (((3-methoxy-4- ((4-nitrophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - (((3-methoxy-4- ((4- (trifluoromethyl)) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - (((((3-methoxy-4- ((2-chlorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((((3-methoxy-4- ((3-chlorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((3-methoxy-4- ((4-chlorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) Dithioacetal, 2'- (((3-methoxy-4- ((2, 4-dichlorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((3-methoxy-4- ((4-fluorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2,2'- (((3-methoxy-4- ((4-bromophenyl) oxygen) phenyl) methylene) di (2-hydroxyethyl) dithioacetal, 2' - (((4- ((6-chloropyridin-3-yl) methoxy) -3-methoxyphenyl) methylene) di (2-hydroxyethyl) dithioacetal;

the plant growth regulator includes but is not limited to auxin, gibberellin, cytokinin, brassinolide, ethephon, diethyl aminoethyl hexanoate and compound sodium nitrophenolate;

the nutrition regulator comprises but is not limited to monopotassium phosphate, urea, macroelement water-soluble fertilizer and microelement water-soluble fertilizer.

7. An glufosinate-ammonium herbicide according to claim 1, wherein the further pesticide adjuvant is at least one of a dispersant, a surfactant, a solvent, a thickener, an anti-freeze agent, a carrier, a preservative, a disintegrant, a binder, a pH adjuster, a defoamer.

8. An glufosinate-ammonium herbicide according to claim 7, wherein the dispersant includes, but is not limited to, one or more of a polycarboxylate dispersant, a sulphate dispersant, a phosphate dispersant, a sulphate dispersant;

the surfactant includes, but is not limited to, fatty alcohol polyoxyethylene ether, alkylamide betaine, polyoxyethylene ether sorbitan fatty acid ester, tallow amine, castor oil polyoxyethylene ether, alkylbenzene sulfonate, alpha-olefin sulfonate, alkyl sulfonate, alpha-sulfo monocarboxylic acid ester, fatty acid sulfoalkyl ester, succinate sulfonate, alkyl naphthalene sulfonate, petroleum sulfonate, lignosulfonate, alkylglycerol ether sulfonate, alcohol ether carboxylate, alkyl sulfate, fatty alcohol polyoxyethylene ether sulfate, glycerol fatty acid ester sulfate, sulfated sodium ricinoleate, sodium naphthenate, fatty amide alkyl sodium sulfate, alkyl phosphate, fatty alcohol polyoxyethylene ether phosphate, alkylolamide phosphate, imidazoline phosphate, high molecular polyphosphate, high molecular weight phosphate, high molecular weight polyol ester or salt, alkyl alcohol amide alkyl sulfate, alkyl phosphate, alkyl alcohol polyoxyethylene ether phosphate, alkyl alcohol amide phosphate, imidazoline phosphate, high molecular weight polyol ester or salt, One or more of siloxane phosphate, sulfosuccinate or cocamidopropyl betaine;

the solvent includes, but is not limited to, water, propanol, methanol, xylene, toluene, cyclohexane, petroleum ether, butanol, alkyl naphthalene, ethers, lipids, vegetable oils;

the thickening agent is one of magnesium aluminum silicate, xanthan gum and Arabic gum;

the antifreeze is one of ethylene glycol, propylene glycol and glycerol;

the carrier is one or more of ammonium sulfate, potassium sulfate, sodium sulfate, ammonium chloride, potassium chloride, sodium chloride, ammonium bicarbonate, potassium bicarbonate, sodium bicarbonate, ammonium carbonate, potassium carbonate, sodium carbonate, soluble starch, lactose, glucose, sodium pyrophosphate, trisodium phosphate, urea, corn starch, bentonite, diatomite, kaolin, clay, talc, chalk, montmorillonite, activated clay, silicate, pumice, sepiolite, corncob, sawdust \ white carbon black, nacrite and light calcium carbonate;

the preservative is one of cason, benzyl alcohol, formaldehyde and sodium benzoate;

the disintegrating agent comprises one or more of sodium sulfate, ammonium sulfate, urea, ammonium chloride, potassium bicarbonate, sodium bicarbonate and starch;

the binder comprises but is not limited to one or more of lignin, phosphite, methyl cellulose, carboxymethyl cellulose, starch, lactose, glucose and alkyl glycoside;

the pH regulator comprises one or more of potassium dihydrogen phosphate, sodium dihydrogen phosphate, citric acid and tartaric acid;

the defoaming agent is one or two of methyl silicone oil and polyether.

9. The glufosinate-ammonium herbicide as claimed in claim 1, wherein the formulation of the glufosinate-ammonium herbicide is one of water suspension, wettable powder, water dispersible granule, soluble granule and microemulsion.

10. An essential glufosinate herbicide according to claim 9, characterized in that it has the following composition in weight percent:

when the formulation of the refined glufosinate-ammonium herbicide is a water suspending agent, 5-80% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 2-20% of surfactant, 0.1-0.5% of defoaming agent, 0.1-0.3% of thickening agent, 3-7% of antifreeze agent, 0.1-0.2% of preservative and the balance of water to 100%;

when the formulation of the refined glufosinate-ammonium herbicide is wettable powder, 5-80% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 2-20% of surfactant, 0-10% of pH regulator and 100% of carrier;

when the formulation of the refined glufosinate-ammonium herbicide is water dispersible granules, 5-80% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 2-20% of surfactant, 0-20% of disintegrant, 0-15% of binder, 0-10% of pH regulator and 100% of carrier complement;

when the formulation of the refined glufosinate-ammonium herbicide is soluble granules, 5-80% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 2-20% of surfactant, 0-20% of disintegrant, 0-15% of binder and 100% of carrier;

when the formulation of the refined glufosinate-ammonium herbicide is microemulsion, 5-50% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 10-30% of surfactant, 0-25% of solvent and water are supplemented to 100%.

Technical Field

The invention relates to the field of preparation methods of pesticide herbicides, and in particular relates to an accurate glufosinate-ammonium herbicide.

Background

Refined Glufosinate-ammonium (Glufosinate), chemical name 4- [ hydroxy (methyl) phosphono-phosphonic acid group]-DL-homoalanine of formula C₅H₁₅N₂O₄P belongs to contact type herbicides which are phosphinic acid and have high efficiency, low toxicity, partial systemic absorption and non-conductivity, and different from glyphosate root killing, the refined glufosinate-ammonium firstly kills leaves, is conducted on xylem of plants through plant transpiration, inhibits the activity of glutamine synthetase in plants, causes nitrogen metabolic disorder in plants, and causes chloroplast disintegration and destruction of photosynthesis through excessive accumulation of ammonia, thereby finally killing the plants. Its quick-acting property is between paraquat and glyphosate, and it is easy to degrade in soil, safe for crops, not easy to drift, broad in weeding spectrum and activeHigh dosage and low environmental pressure. The refined glufosinate-ammonium has good water solubility and stable structure, and is convenient to process and mix for use.

Because of the excellent characteristics of the glufosinate-ammonium, the glufosinate-ammonium is very suitable to be used as a resistance gene, the development and planting of the glufosinate-ammonium resistant transgenic crops are rapidly increased in recent years, and the glufosinate-ammonium becomes a herbicide-tolerant variety of the second world transgenic crops except glyphosate.

Bromoxynil is a selective postemergence stem and leaf treatment contact herbicide, is mainly absorbed by leaves, conducts extremely limited in a plant body, and rapidly necroses plant tissues through various processes of inhibiting photosynthesis. The leaves are faded and have necrotic spots within 24 hours after the application of the drug, and the withering of the leaves can be accelerated under the conditions of higher air temperature and stronger illumination. The bromoxynil is suitable for preventing and killing broad-leaved weeds in crops such as corn, sorghum, wheat and the like.

Chlorimuron-ethyl is a sulfonylurea herbicide and is widely used due to the characteristics of high herbicidal activity, wide herbicidal spectrum, strong selectivity, safety to crops, low dosage and the like. Particularly, the herbicide is applied to soil and enters weed bodies to inhibit the synthesis of amino acids such as valine and leucine, prevent cell division and promote the death of weeds. Soybean can metabolize the soybean into inactive substances to grow as usual, so that the soybean is widely used for weeding in soybean fields, which is called as metsulfuron-methyl in China.

The transgenic glufosinate-ammonium-resistant crops have better tolerance to glufosinate-ammonium, and theoretically, under the normal medication condition, the growth and development of the crops are not obviously influenced. However, relevant research data show that after the transgenic crops are sprayed with the herbicide, the growth and development parameters such as plant height, plant diameter, pollen activity and the like of the crops can be slightly influenced, so that the yield is influenced. In particular, the conventional formula herbicide is used instead of the special transgenic formula herbicide, and the components such as solvent, synergist and the like in the conventional formula herbicide can cause serious damage to transgenic crops and even cause phytotoxicity.

The glufosinate-ammonium is used as a hot herbicide, a plurality of related mixed patents are applied in recent years, and no patent and report about mixing of glufosinate-ammonium and bromoxynil or chlorimuron-ethyl is available at present. No report is made on the glufosinate-ammonium herbicide composition and preparation products aiming at the application of the transgenic crops.

Disclosure of Invention

In view of the above, the present invention provides an glufosinate-ammonium herbicide. The herbicide provided by the invention can be used for spraying treatment of stems, leaves and soil in transgenic corn fields and transgenic soybean fields.

In order to achieve the above object, the present invention provides the following technical solutions:

the invention provides a glufosinate-ammonium herbicide, which comprises an active ingredient A, an active ingredient B, a crop physiological regulator, an anti-drift agent and other pesticide auxiliaries;

the active component A is refined glufosinate-ammonium;

the anti-drift agent is one or more of high molecular polymer PEO, anionic surfactant AOT and diallyl polyether.

Preferably, active ingredient B is selected from, but not limited to, glyphosate, acetochlor, butachlor, bensulfuron-methyl, pyrazosulfuron-ethyl, sulfometuron-methyl, chlorimuron-ethyl, mesotrione, dicamba, 2, 4-D, isoxaflutole, bromoxynil, imazethapyr, imazaquin, imazamethabenz-methyl, niamazole, or salts thereof.

Preferably, the active ingredient B is bromoxynil and/or chlorimuron.

Preferably, the total weight content of A and B in the herbicide is 5-80%.

The total weight content of A and B is preferably 10% to 60%.

Preferably, the mass ratio of the active ingredient A to the active ingredient B is (1-79): (1-79).

Preferably, the crop physiological regulator is one or more of dithioacetal compounds, plant growth regulators and nutrition regulators, and the addition amount of the crop physiological regulator in the herbicide is 0.1-20%.

Preferably, the dithioacetal compound is selected from the group consisting of (((4-benzyloxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((3-methylphenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4-nitrophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4- (trifluoromethyl) phenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, and (4- ((4- (trifluoromethyl) phenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((2-chlorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((3-chlorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4-chlorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, (4- ((2, 4-dichlorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4-fluorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((4-bromophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, and ((4- ((4-bromophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal 4-chlorophenyl) dithioacetal, ((4- ((2-chloropyridyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, ((4- ((2-chlorothiazolyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, 2' - ((4- (benzyloxy) -3-methoxyphenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((3-methoxy-4- ((3-methylphenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((3-methoxy-4- ((4-methylphenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, di (4-chlorophenyl) dithioacetal, di (4-chloro-phenyl) methylene) di (4-chlorophenyl) dithioacetal, di (2-methoxy-4-phenyl) oxy) methylene) di (2-hydroxyethyl), 2,2' - (((3-methoxy-4- ((4-nitrophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - (((3-methoxy-4- ((4- (trifluoromethyl)) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - (((((3-methoxy-4- ((2-chlorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((((3-methoxy-4- ((3-chlorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((3-methoxy-4- ((4-chlorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) Dithioacetal, 2'- (((3-methoxy-4- ((2, 4-dichlorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2' - ((((3-methoxy-4- ((4-fluorophenyl) oxy) phenyl) methylene) bis (2-hydroxyethyl) dithioacetal, 2,2'- (((3-methoxy-4- ((4-bromophenyl) oxygen) phenyl) methylene) di (2-hydroxyethyl) dithioacetal, 2' - (((4- ((6-chloropyridin-3-yl) methoxy) -3-methoxyphenyl) methylene) di (2-hydroxyethyl) dithioacetal;

preferably, plant growth regulators include, but are not limited to, auxins, gibberellins, cytokinins, brassinolide, ethephon, diethyl aminoethyl hexanoate, sodium nitrophenolate;

preferably, the nutrition regulator includes but is not limited to monopotassium phosphate, urea, macroelement water-soluble fertilizer and microelement water-soluble fertilizer.

Preferably, the other pesticide adjuvant is at least one of a dispersant, a surfactant, a solvent, a thickener, an antifreeze agent, a carrier, a preservative, a disintegrant, a binder, a pH adjuster, and a defoamer.

The surfactant of the present invention includes any one of a nonionic surfactant, an amphoteric surfactant, an anionic surfactant and a cationic surfactant or a combination of at least two thereof.

Preferably, the dispersant includes but is not limited to one or more of polycarboxylate dispersant, sulfate dispersant, phosphate dispersant and sulfate dispersant;

preferably, the surfactant includes, but is not limited to, fatty alcohol polyoxyethylene ether, alkylamide betaine, polyoxyethylene ether sorbitan fatty acid ester, tallow amine, castor oil polyoxyethylene ether, alkylbenzene sulfonate, α -olefin sulfonate, alkyl sulfonate, α -sulfo monocarboxylic acid ester, fatty acid sulfoalkyl ester, succinate sulfonate, alkylnaphthalene sulfonate, petroleum sulfonate, lignosulfonate, alkylglycerol ether sulfonate, alcohol ether carboxylate, alkyl sulfate, fatty alcohol polyoxyethylene ether sulfate, glycerol fatty acid ester sulfate, sulfated sodium ricinoleate, sodium naphthenate sulfate, fatty amide alkyl sodium sulfate, alkyl phosphate ester or salt, fatty alcohol polyoxyethylene ether phosphate ester or salt, alkylolamide phosphate ester or salt, imidazoline phosphate ester or salt, high molecular weight polyphosphate ester or salt, high molecular weight polyol ester or salt, fatty alcohol amide betaine, fatty alcohol ether sulfonate, alkyl sulfonate, fatty acid ester sulfonate, fatty acid alkyl naphthalene sulfonate, one or more of siloxane phosphate, sulfosuccinate or cocamidopropyl betaine;

preferably, the solvent includes, but is not limited to, water, propanol, methanol, xylene, toluene, cyclohexane, petroleum ether, butanol, alkyl naphthalene, ethers, lipids, vegetable oils;

preferably, the thickening agent is one of magnesium aluminum silicate, xanthan gum and Arabic gum;

preferably, the antifreeze is one of ethylene glycol, propylene glycol and glycerol;

preferably, the carrier is one or more of ammonium sulfate, potassium sulfate, sodium sulfate, ammonium chloride, potassium chloride, sodium chloride, ammonium bicarbonate, potassium bicarbonate, sodium bicarbonate, ammonium carbonate, potassium carbonate, sodium carbonate, soluble starch, lactose, glucose, sodium pyrophosphate, trisodium phosphate, urea, corn starch, bentonite, diatomite, kaolin, clay, talc, chalk, montmorillonite, activated clay, silicate, pumice, sepiolite, corncob, sawdust \ white carbon black, nacrite and light calcium carbonate;

preferably, the preservative is one of cason, benzyl alcohol, formaldehyde and sodium benzoate;

preferably, the disintegrating agent comprises one or more of sodium sulfate, ammonium sulfate, urea, ammonium chloride, potassium bicarbonate, sodium bicarbonate and starch;

preferably, the binder includes but is not limited to one or more of lignin, phosphite, methyl cellulose, carboxymethyl cellulose, starch, lactose, glucose and alkyl glycoside;

preferably, the pH regulator includes but is not limited to one or more of potassium dihydrogen phosphate, sodium dihydrogen phosphate, citric acid, and tartaric acid;

preferably, the defoaming agent is one or two of methyl silicone oil and polyether.

Preferably, the formulation of the glufosinate-ammonium herbicide is one of water suspension, wettable powder, water dispersible granules, soluble granules and microemulsion.

Preferably, the composition of the glufosinate-ammonium herbicide is as follows in weight percent:

when the formulation of the refined glufosinate-ammonium herbicide is a water suspending agent, 5-80% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 2-20% of surfactant, 0.1-0.5% of defoaming agent, 0.1-0.3% of thickening agent, 3-7% of antifreeze agent, 0.1-0.2% of preservative and the balance of water to 100%;

when the formulation of the refined glufosinate-ammonium herbicide is wettable powder, 5-80% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 2-20% of surfactant, 0-10% of pH regulator and 100% of carrier;

when the formulation of the refined glufosinate-ammonium herbicide is water dispersible granules, 5-80% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 2-20% of surfactant, 0-20% of disintegrant, 0-15% of binder, 0-10% of pH regulator and 100% of carrier complement;

when the formulation of the refined glufosinate-ammonium herbicide is soluble granules, 5-80% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 2-20% of surfactant, 0-20% of disintegrant, 15% of binder and 100% of carrier;

when the formulation of the refined glufosinate-ammonium herbicide is microemulsion, 5-50% of active ingredients, 0.1-20% of crop physiological regulator, 1-20% of anti-drift agent, 10-30% of surfactant, 0-25% of solvent and water are added to 100%;

the invention provides a refined glufosinate-ammonium herbicide. The herbicide comprises an active ingredient A, an active ingredient B, a crop physiological regulator, an anti-drift agent and other pesticide auxiliaries; the active component A is refined glufosinate-ammonium; the anti-drift agent is one or more of high molecular polymer PEO, anionic surfactant AOT and diallyl polyether. Compared with other herbicides, the composition has the following advantages:

1) the compound composition of the refined glufosinate-ammonium expands the weed control spectrum, enriches the use method, can be used for stem leaf spraying and soil spraying, and can also delay the resistance of weeds to the refined glufosinate-ammonium;

2) the glufosinate-ammonium compound composition can be used for transgenic crop fields, the dosage of the preparation is reduced by 50% compared with glufosinate-ammonium, namely, components such as a solvent, a surfactant and the like in a system are correspondingly reduced, the medication cost is reduced, particularly the safety risk of crops is also reduced, and the glufosinate-ammonium compound composition is safer compared with a glufosinate-ammonium compound composition;

3) the composition comprises the refined glufosinate-ammonium, the compound herbicide and crop growth regulating components, particularly dithioacetal compounds, can effectively improve the biological activity of crops and reduce the influence of the external environment on the growth of the crops, thereby avoiding the influence of pesticide application on the growth and development of transgenic crops and ensuring or improving the yield of the transgenic crops;

4) the herbicide composition is added with the anti-drift auxiliary agent, and the specific anti-drift agent component is not disclosed in the prior art, so that the herbicide composition can play a role in reducing the specific gravity of fine fog drops and increasing the anti-drift performance of the fog drops.

Drawings

FIG. 1 is a diagram of an anti-drift test apparatus.

Detailed Description

The invention discloses a glufosinate-ammonium herbicide, which can be realized by appropriately improving process parameters by the technical personnel in the field by referring to the content. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.

The raw material medicines or the auxiliary agents used in the refined glufosinate-ammonium herbicide can be purchased from the market.

The invention is further illustrated by the following examples:

example 1

The embodiment provides a transgenic soybean field herbicide composition, the dosage form of which is wettable powder, and the composition comprises the following components in percentage by weight: 10% of glufosinate-ammonium, 35% of chlorimuron-ethyl, 0.2% of ((4-phenoxy) -3-methoxyphenyl) methylene) di (4-chlorphenyl) dithioacetal, 3% of fatty alcohol-polyoxyethylene ether, 2% of dodecyl naphthalene sulfonate, 1% of polycarboxylate dispersant, 10% of PEO and the balance of kaolin to 100%.

The present example also provides a method for preparing the herbicidal composition: weighing the raw materials according to the weight percentage, adding the raw materials into a colter mixer, and uniformly mixing; and then crushing the mixture by using an airflow crusher until the particle size of the powder is less than 45 mu m to obtain the wettable powder.

Example 2

The embodiment provides a transgenic soybean field herbicide composition, the dosage form of which is a water suspending agent, and the composition comprises the following components in percentage by weight: 56% of refined glufosinate-ammonium, 2% of chlorimuron-ethyl, 10% of ((4-benzyloxy) -3-methoxyphenyl) methylene) di (4-chlorphenyl) dithioacetal, 2% of lignosulfonate, 1% of polycarboxylate dispersant, 2% of sulfate dispersant, 0.3% of defoaming agent, 0.12% of thickening agent, 4% of antifreeze agent, 0.2% of preservative, 10% of PEO, and the balance of water to 100%.

The present example also provides a method for preparing the herbicidal composition: weighing the raw materials according to the weight percentage, adding the raw materials into a stirring kettle, and fully stirring, wherein shearing is carried out simultaneously in the stirring process; stirring for 55 min, and grinding the material by a sand mill to ensure that the particle size D50 of the powder is not more than 8 microns; after grinding, adding the materials into a shearing kettle and shearing for 30min to obtain the aqueous suspension.

Example 3

The embodiment provides a transgenic corn field herbicide composition, the dosage form of which is water dispersible granules, and the composition comprises the following components in percentage by weight: 5% of glufosinate-ammonium, 3% of chlorimuron-ethyl, 5% of brassinolide, 0.5% of amine alkoxylate, 0.5% of polyacrylate, 0.3% of citric acid, 1% of lactose, AOT 10% and the balance of diatomite.

The present example also provides a method for preparing the herbicidal composition: weighing the raw materials according to the weight percentage, adding the raw materials into a colter mixer, and uniformly mixing; the mixture is crushed into fine powder of 800 meshes to 1000 meshes by an ultramicro jet mill; and adding the obtained fine powder and an aqueous solution of a binder (lactose) into a mixer, uniformly mixing, granulating by using an extrusion granulator, and drying at 50-100 ℃ to obtain the water dispersible granules.

Example 4

The embodiment provides a transgenic corn field herbicide composition, the dosage form of which is wettable powder, and the composition comprises the following components in percentage by weight: 30% of glufosinate-ammonium, 45% of bromoxynil, 12% of ((4- ((2-chlorophenyl) oxy) -3-methoxyphenyl) methylene) di (4-chlorophenyl) dithioacetal, 2% of alkyl glycoside, 2% of polyacrylate, 1% of polycarboxylate dispersant, 10% of AOT and the balance of kaolin to 100%.

The present example also provides a method for preparing the herbicidal composition: weighing the raw materials according to the weight percentage, adding the raw materials into a colter mixer, and uniformly mixing; and then crushing the mixture by using an airflow crusher until the particle size of the powder is less than 45 mu m to obtain the wettable powder.

Example 5

The embodiment provides a transgenic corn field herbicide composition, the dosage form of the composition is a water suspending agent, and the composition comprises the following components in percentage by weight: 10% of refined glufosinate-ammonium, 20% of bromoxynil, (4- ((2-chlorophenyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal 6%, 2% of phosphate dispersant, 1% of polycarboxylate dispersant, 2% of sulfate dispersant, 0.3% of defoaming agent, 0.1% of thickening agent, 4% of antifreeze agent, 0.2% of preservative, 10% of diallyl polyether and water for supplementing to 100%.

The present example also provides a method for preparing the herbicidal composition: weighing the raw materials according to the weight percentage, adding the raw materials into a stirring kettle, and fully stirring, wherein shearing is carried out simultaneously in the stirring process; stirring for 30min, and grinding the material by a sand mill to ensure that the particle size D50 of the powder is not larger than 8 microns; after grinding, adding the materials into a shearing kettle and shearing for 30min to obtain the aqueous suspension.

Example 6

The embodiment provides a transgenic soybean field herbicide composition, the dosage form of which is water dispersible granules, and the composition comprises the following components in percentage by weight: 1% of glufosinate-ammonium, 79% of bromoxynil, 10% of auxin, 0.8% of lignosulfonate, 1% of polyacrylate, 0.4% of citric acid, 1% of lactose, 6% of diallyl polyether and the balance of diatomite.

The present example also provides a method for preparing the herbicidal composition: weighing the raw materials according to the weight percentage, adding the raw materials into a colter mixer, and uniformly mixing; the mixture is crushed into fine powder of 800 meshes to 1000 meshes by an ultramicro jet mill; and adding the obtained fine powder and an aqueous solution of a binder (lactose) into a mixer, uniformly mixing, granulating by using an extrusion granulator, and drying at 50-100 ℃ to obtain the water dispersible granules.

Example 7

The embodiment provides a transgenic soybean field herbicide composition, the dosage form of which is water dispersible granules, and the composition comprises the following components in percentage by weight: 79% of glufosinate-ammonium, 1% of isoxaflutole, 10% of ((4- ((2-chloropyridyl) oxy) -3-methoxyphenyl) methylene) bis (4-chlorophenyl) dithioacetal, 0.8% of lignosulfonate, 1% of polyacrylate, 0.4% of citric acid, 1% of lactose, 5% of AOT and the balance of diatomite.

The present example also provides a method for preparing the herbicidal composition: refer to example 6.

Example 8

The embodiment provides a transgenic soybean field herbicide composition, the dosage form of which is soluble granules, and the composition comprises the following components in percentage by weight: 60% of glufosinate-ammonium, 5% of imazethapyr, 10% of 2,2' - ((4- (benzyloxy) -3-methoxyphenyl) methylene) di (2-hydroxyethyl) dithioacetal, 2% of fatty alcohol-polyoxyethylene ether, 5% of tallow amine, 5% of AOT and the balance of ammonium sulfate to 100%.

The present example also provides a method for preparing the herbicidal composition: weighing the raw materials according to the weight percentage, adding the raw materials into a colter mixer, and uniformly mixing; and granulating the mixture by using an extrusion granulator, and drying at 50-100 ℃ to obtain the soluble granules.

Example 9

The embodiment provides a transgenic soybean field herbicide composition, the dosage form of which is microemulsion, and the composition comprises the following components in percentage by weight: 5% of glufosinate-ammonium, 15% of acetochlor, 0.5% of 2,2' - (((4- ((6-chloropyridin-3-yl) methoxy) -3-methoxyphenyl) methylene) di (2-hydroxyethyl) dithioacetal, 5% of methanol, 10% of cyclohexanone, 5% of isopropanol, 15% of fatty alcohol polyether, 20% of alkylbenzene sulfonate, 5% of PEO and the balance of water to 100%.

The present example also provides a method for preparing the herbicidal composition: weighing the imazamethabenz methyl ester raw material and the solvent according to the weight percentage, adding the raw material and the solvent into a reaction kettle, and uniformly mixing until the raw material and the solvent are completely dissolved; adding a surfactant into the reaction kettle, and uniformly stirring; and finally, adding the refined glufosinate-ammonium and water into the reaction kettle, and uniformly stirring to obtain the microemulsion.

Comparative example 1

This comparative example differs from example 1 in that no component PEO was present, and the remaining conditions were the same as in example 1.

Comparative example 2

This comparative example differs from example 2 in that no component PEO was present, and the remaining conditions were the same as in example 2.

Comparative example 3

This comparative example differs from example 3 in that the component AOT is not present and the remaining conditions are the same as in example 3.

Comparative example 4

This comparative example differs from example 3 in that the component AOT is not present and the remaining conditions are the same as in example 3.

Comparative example 5

This comparative example differs from example 5 in that the constituent bisallyl polyether is not included, and the other conditions are the same as in example 5.

Example 10

The experiment results of the field efficacy experiments of the embodiment 1, the embodiment 2, the embodiment 3 and the embodiment 8 are carried out, the experimental field is a transgenic soybean field, weeds are in a vigorous growth period, and the weeds in a blank control area are artificially controlled. The test adopts one-time pesticide application, and the control effect and the plant height of the plants are respectively investigated 7d, 15d and 45d after the pesticide application, and the plants are harvested by different harvest contrasts.

The control effect of the plants is (weed number of blank control area-weed number of treatment area)/weed number of blank control area 100%

Height difference (mean height of soybean plants in blank control area-mean height of soybean plants in treatment area)

Yield difference (blank control area soybean harvest per mu-treatment area soybean harvest per mu)

TABLE 1 herbicide control of transgenic soybean fields

The results of the pharmacodynamic tests show that the quick-acting performance of the treatment agents in examples 1, 2, 3 and 8 is greatly improved compared with that of the control agent, and the weed control effect of the treatment agents in examples 1, 2, 3 and 8 can be kept over 45 days, which is obviously better than that of the control agent.

TABLE 2 Effect of herbicides on transgenic Soybean plant height

The results of the pharmacodynamic tests show that compared with the control treatment, the treatment agents of example 1, example 2, example 3 and example 8 have the smallest influence on the plant height of the soybeans, namely the treatment areas can reduce the biological damage of the herbicide to the transgenic crops compared with the control treatment; compared with refined glufosinate-ammonium, the refined glufosinate-ammonium has less influence on the plant height of the soybean.

TABLE 3 Effect of herbicides on transgenic Soybean yield

The results of the pharmacodynamic tests show that compared with the control treatment, the treatment agents of example 1, example 2, example 3 and example 8 have the smallest influence on the yield of the soybeans, namely the biological damage of the herbicide to the transgenic crops can be reduced in the treatment area compared with the control treatment; glufosinate-ammonium has less impact on soybean yield than glufosinate-ammonium.

Example 11

The field efficacy experiments of the embodiment 4, the embodiment 5, the embodiment 6, the embodiment 7 and the embodiment 9 are carried out, the test field is a transgenic corn field, weeds are in a vigorous growth period, and the weeds in a blank control area are artificially controlled. The test adopts one-time pesticide application, and the control effect and the plant height of the plants are respectively investigated 7d, 15d and 45d after the pesticide application, and the plants are harvested by different harvest contrasts.

The control effect of the plants is (weed number of blank control area-weed number of treatment area)/weed number of blank control area 100%

Height difference (average value of corn plant height in blank control area-average value of corn plant height in treatment area)

Yield difference (blank control area soybean harvest per mu-treatment area soybean harvest per mu)

TABLE 4 herbicide control Effect on transgenic corn fields

The results of the pharmacodynamic tests show that the control effect of the treatment agents of example 4, example 5, example 6, example 7 and example 9 on weeds is significantly better than that of the control treatment.

TABLE 5 herbicide composition effects on transgenic maize plant height

The results of the pharmacodynamic tests show that compared with the control treatment, the treatment agents of example 4, example 5, example 6, example 7 and example 9 have the smallest influence on the plant height of the corn, namely the biological damage of the herbicide to the transgenic crop can be reduced in the treatment area compared with the control treatment; compared with the refined glufosinate-ammonium, the influence of the refined glufosinate-ammonium on the plant height of the corn is smaller;

TABLE 6 herbicide composition effects on transgenic maize yield

The results of the pharmacodynamic tests show that compared with the control treatment, the treatment agents of example 4, example 5, example 6, example 7 and example 9 have the smallest influence on the corn yield, namely the biological damage of the herbicide to the transgenic crops can be reduced in the treatment area compared with the control treatment; glufosinate-ammonium has less impact on corn yield than glufosinate-ammonium.

Example 12

In the experiment, the anti-drift performance of the formula is tested by counting the deposition amount of different sprayed medicaments. The test setup was sprayed with 1L of liquid medicine. After diluting the medicaments with different formulas, uniformly mixing, and spraying under the condition of the wind speed of 2 m/s. 3 beakers were placed under the shower head, with a spacing of 30cm between beakers (as shown in FIG. 1). And after spraying is finished, weighing and counting the solution in the beaker.

The experimental formula medicines are respectively example 1, example 2, example 3, example 4, example 5, comparative example 1, comparative example 2, comparative example 3, comparative example 4 and comparative example 5, and the specific experimental results are as follows:

TABLE 7

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.