CN117481127A - Herbicide composition and application thereof - Google Patents

Herbicide composition and application thereof Download PDF

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Publication number
CN117481127A
CN117481127A CN202210857955.3A CN202210857955A CN117481127A CN 117481127 A CN117481127 A CN 117481127A CN 202210857955 A CN202210857955 A CN 202210857955A CN 117481127 A CN117481127 A CN 117481127A
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China
Prior art keywords
pendimethalin
metribuzin
herbicide composition
weight ratio
fenpyrad
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CN202210857955.3A
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Inventor
占玉萍
路军
薛进春
廖远霞
张聪
孙运迎
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Beijing Nutrichem Co ltd
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Beijing Nutrichem Co ltd
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Priority to CN202210857955.3A priority Critical patent/CN117481127A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
    • A01N33/18—Nitro compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/707—1,2,3- or 1,2,4-triazines; Hydrogenated 1,2,3- or 1,2,4-triazines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P13/00—Herbicides; Algicides

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  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Plant Pathology (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to the field of herbicides, and discloses a herbicide composition with wide herbicide controlling spectrum and remarkable weed controlling effect and application thereof. The active ingredients of the herbicide composition comprise haloxyfop-methyl, metribuzin and pendimethalin. The herbicide composition provided by the invention has excellent synergistic effect, and reduces the dosage of pesticides, so that the cost of the pesticides for farmers and the influence degree on the environment are reduced.

Description

Herbicide composition and application thereof
Technical Field
The invention belongs to the field of herbicides, and particularly relates to a herbicide composition and application thereof.
Background
The long-term single unreasonable use of the herbicide results in a significant decrease in the control effect of the herbicide and the occurrence of resistant weeds. The problem of herbicide resistance has become a global challenge.
In general, weeds develop resistance, are some resistant weeds or genetic types of resistance are preserved and can reproduce to form a larger population. Taking green bristlegrass as an example, 70 ten thousand seeds can be produced per plant, which can be spread very effectively over a large area. From the field expression, the sensitivity of the original sensitive weed to the herbicide is reduced due to the large-area or long-term continuous use of one and the same type of herbicide, so that the control effect is difficult to achieve by the conventional dosage.
The herbicide composition is prepared by performing object competition, under the selection pressure of herbicide, the gene in the weed body is mutated or the gene expression is changed, so that the detoxification capacity of the herbicide is improved or the affinity between the herbicide and an action site is reduced, a drug-resistant mutant is generated, and along with the propagation development of drug-resistant individuals, a larger drug-resistant population is finally generated. The development of resistance by weeds is a necessary outcome for long-term, large, excessive, single use of herbicides. However, the rate of drug resistance development is affected by the characteristics of the herbicide, the biological characteristics of the weeds, the cultivation mode, and other factors.
Herbicide resistance is a global challenge. The design can reduce the use cost, delay the weed resistance, is safe to the environment and can effectively solve the problem of the existing soybean field resistant weeds.
Disclosure of Invention
The invention aims to provide a herbicide composition with wide weed control spectrum and remarkable weed control effect and application thereof.
The inventor of the invention surprisingly found in the research process that the compound use of the haloxyfop-methyl, the metribuzin and the pendimethalin herbicide with different structure types and action mechanisms can not generate drug property offset or other side effects, but also has obvious synergistic effect, can improve the preventing and killing effects of the three components on annual and perennial gramineae and broadleaf weeds to a greater extent, expands the weed killing spectrum when the three components are used as single components, and has high safety to crops.
Thus, a first object of the present invention is to provide a herbicide composition, wherein the active ingredient of the herbicide composition contains topramezone, metribuzin and pendimethalin.
A second object of the present invention is to provide the use of the above herbicide composition for controlling annual and perennial grasses and broadleaf weeds.
A third object of the present invention is to provide the use of the above herbicide composition for controlling annual and perennial grasses and broadleaf weeds in soybean fields.
Specifically, the herbicide composition provided by the invention has the following advantages:
the herbicide composition provided by the invention has excellent synergistic effect, and compared with a single agent, the mixed composition has the advantages of obviously improving the weeding effect, reducing the dosage of pesticides, and reducing the cost of the pesticides for farmers and the influence degree on the environment.
The herbicide composition provided by the invention expands the weed control spectrum of the herbicide, can simultaneously control various weeds, is convenient and efficient to use, and has good control effect on annual and perennial grassy weeds and broadleaf weeds.
The herbicide composition provided by the invention is a compound combination of herbicides with different action mechanisms, so that the weeding characteristics of the herbicides with all components are well complementary, and the generation and the development of the resistance of weeds to single agents can be effectively delayed.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
The active ingredients of the herbicide composition provided by the invention contain haloxyfop-methyl, metribuzin and pendimethalin.
Although the active ingredients in the present invention show a remarkable synergistic effect as long as they include haloxyfop-methyl, metribuzin and pendimethalin, it is preferable that the weight ratio of haloxyfop-methyl, metribuzin and pendimethalin is 1 from the viewpoint of further improving the synergistic effect: 0.1-30:0.1-60; more preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:0.4-27:0.8-54; more preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:0.8-27:1.6-54; more preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:1.6-27:3.3-54; more preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:3.3-27:6.6-54; more preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:6.6-27:13.3-54; more preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:13.3-27:26.6-54.
Specific examples of the weight ratio of the haloxyfop-methyl, the metribuzin and the pendimethalin include: 7.5:25: 50. 7.5:25: 100. 7.5:25: 200. 7.5:25: 400. 7.5:50: 50. 7.5:50: 100. 7.5:50: 200. 7.5:50: 400. 7.5:100: 50. 7.5:100: 100. 7.5:100: 200. 7.5:100: 400. 7.5:200: 50. 7.5:200: 100. 7.5:200: 200. 7.5:200: 400. 15:25: 50. 15:25: 100. 15:25: 200. 15:25: 400. 15:50: 50. 15:50: 100. 15:50: 200. 15:50: 400. 15:100: 50. 15:100: 100. 15:100: 200. 15:100: 400. 15:200: 50. 15:200: 100. 15:200: 200. 15:200: 400. 30:25: 50. 30:25: 100. 30:25: 200. 30:25: 400. 30:50: 50. 30:50:100. 30:50: 200. 30:50: 400. 30:100: 50. 30:100: 100. 30:100: 200. 30:100: 400. 30:200: 50. 30:200: 100. 30:200:200. 30:200: 400. 60:25: 50. 60:25: 100. 60:25: 200. 60:25: 400. 60:50: 50. 60:50: 100. 60:50: 200. 60:50: 400. 60:100: 50. 60:100: 100. 60:100: 200. 60:100: 400. 60:200: 50. 60:200: 100. 60:200: 200. 60:200:400, etc.
From the viewpoint of herbicidal activity against grassy weeds, the weight ratio of haloxyfop-methyl, metribuzin and pendimethalin is preferably 15:200: 400. 15:100: 200. 30:25: 200. 15:200: 100. 30:100: 100. 7.5:200: 100. 60:100: 50. 30:50:100. 15:200: 50. 7.5:200: 400. 60:50: 50. 30:100: 400. 60:100: 400. 15:50: 50. 30:200: 400. 60:200: 100. 7.5:50: 400. 30:200:200.
from the viewpoint of herbicidal activity against broadleaf weeds, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is preferably 15:100: 200. 7.5:25: 200. 7.5:100: 50. 60:50: 50. 30:50: 400. 7.5:200: 400. 7.5:25: 400. 30:50: 200. 15:200: 100. 15:25: 400. 60:25: 50. 30:200: 100. 7.5:25: 50. 7.5:50: 400. 15:25: 100. 15:100: 400. 30:50:100.
the content of the active ingredient in the herbicide composition of the present invention may vary widely, and in particular, the content of the active ingredient in the composition is 1 to 95% by weight, preferably 5 to 80% by weight, more preferably 6 to 50% by weight.
Specific examples of the content of the active ingredient in the composition include: 1 wt%, 2 wt%, 3 wt%, 4 wt%, 5 wt%, 6 wt%, 7 wt%, 8 wt%, 9 wt%, 10 wt%, 11 wt%, 12 wt%, 13 wt%, 14 wt%, 15 wt%, 16 wt%, 17 wt%, 18 wt%, 19 wt%, 20 wt%, 21 wt%, 22 wt%, 23 wt%, 24 wt%, 25 wt%, 26 wt%, 27 wt%, 28 wt%, 29 wt%, 30 wt%, 31 wt%, 32 wt%, 33 wt%, 34 wt%, 35 wt%, 36 wt%, 37 wt%, 38 wt%, 39 wt%, 40 wt%, 41 wt%, 42 wt%, 43 wt%, 44 wt%, 45 wt%, 46 wt%, 47 wt%, 48 wt%, 30 wt%, and so on 49 wt%, 50 wt%, 51 wt%, 52 wt%, 53 wt%, 54 wt%, 55 wt%, 56 wt%, 57 wt%, 58 wt%, 59 wt%, 60 wt%, 61 wt%, 62 wt%, 63 wt%, 64 wt%, 65 wt%, 66 wt%, 67 wt%, 68 wt%, 69 wt%, 70 wt%, 71 wt%, 72 wt%, 73 wt%, 74 wt%, 75 wt%, 76 wt%, 77 wt%, 78 wt%, 79 wt%, 80 wt%, 81 wt%, 82 wt%, 83 wt%, 84 wt%, 85 wt%, 86 wt%, 87 wt%, 88 wt%, 89 wt%, 90 wt%, 91 wt%, 92 wt%, 93 wt%, 94 wt%, 95 wt%, etc., and a range of values formed by any two of them.
In the herbicide composition of the present invention, the herbicide composition generally contains an agropharmaceutically acceptable surfactant and carrier in addition to the active ingredient.
The surfactant may be any of various surfactants known in the art of agricultural chemical formulation, and the present invention is preferably one or more of an emulsifier, a dispersant and a wetting agent.
Other carriers besides the above surfactants may be various carriers well known in the art of agricultural chemical formulation, including various silicates, carbonates, sulfates, oxides, phosphates, plant carriers, synthetic carriers. Specifically, for example: the carrier may be one or more of white carbon black, kaolin, diatomaceous earth, clay, talc, organobentonite, pumice, titanium dioxide, dextrin, cellulose powder, light calcium carbonate, soluble starch, corn starch, sawdust powder, urea, an amine fertilizer, a mixture of urea and an amine fertilizer, glucose, maltose, sucrose, anhydrous potassium carbonate, anhydrous sodium carbonate, anhydrous potassium bicarbonate, anhydrous sodium bicarbonate, attapulgite, a mixture of anhydrous potassium carbonate and anhydrous potassium bicarbonate, and a mixture of anhydrous sodium carbonate and anhydrous sodium bicarbonate.
The emulsifier may be various emulsifiers known in the field of pesticide formulation, and specifically, the emulsifier may be one or more of calcium dodecyl benzene sulfonate, triphenyl ethyl phenol polyoxyethylene ether phosphate, fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene polyoxypropylene ether, fatty amine, ethylene oxide adduct of fatty amide, fatty acid polyoxyethylene ester, rosin acid ethylene oxide adduct, polyol fatty acid ester and ethylene oxide adduct thereof, styrylphenyl polyoxyethylene ether, alkylphenol formaldehyde resin polyoxyethylene ether, hydroxyl-terminated polyoxyethylene polyoxypropylene ether, styrylphenol formaldehyde resin, polyoxyethylene polyoxypropylene ether and castor oil polyoxyethylene ether.
The dispersant may be various dispersants known in the field of pesticide dosage forms, and specifically, the dispersant may be one or more of acrylic acid homopolymer sodium salt, maleic acid disodium salt, naphthalene sulfonic acid formaldehyde condensate sodium salt, rosin block polyoxyethylene ether polyoxypropylene ether sulfonate, hydroxyl-terminated polyoxyethylene polyoxypropylene ether block copolymer, triphenyl ethyl phenol polyoxyethylene ether phosphate, fatty alcohol polyoxyethylene ether phosphate, sodium p-hydroxyphenyl lignin sulfonate and calcium lignin sulfonate.
The wetting agent can be various wetting agents known in the pesticide formulation field, and concretely, the wetting agent can be one or more of sodium dodecyl sulfate, secondary sodium alkyl sulfate, sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, alkyl naphthalene sulfonate and alkylphenol polyoxyethylene ether sulfate.
The herbicide composition of the invention can also contain various preparation aids commonly used in the field of pesticide formulation, and specifically, the preparation aids can be one or more of solvents, cosolvents, thickeners, antifreezes, capsule materials, protective agents, defoamers, disintegrants, stabilizers, preservatives and binders.
The above solvent may be various solvents well known in the field of agricultural chemical formulation, and specifically, the solvent may be one or more of organic solvents, vegetable oils, mineral oils, solvent oils and water.
Wherein the organic solvent comprises one or more of N-methylpyrrolidone, tetrahydrofuran, dimethyl sulfoxide, N-dimethyl capramide, N-dimethylformamide, trimethylbenzene, tetramethylbenzene, xylene, toluene, octane, heptane, methanol, isopropanol, N-butanol, tetrahydrofurfuryl alcohol, tributyl phosphate, 1, 4-dioxane and cyclohexanone.
The vegetable oil comprises one or more of methylated vegetable oil, turpentine-based vegetable oil, turpentine, epoxidized soybean oil, peanut oil, rapeseed oil, castor oil, corn oil and pine seed oil.
The mineral oil includes one or more of liquid wax, engine oil, kerosene, and lubricating oil.
Meanwhile, the solvent can also be used as a cosolvent.
The above antifreezing agent may be various antifreezing agents known in the field of agricultural chemical formulation, and the present invention is preferably one or more of ethylene glycol, propylene glycol, glycerin and urea.
The thickener may be various thickeners known in the field of pesticide dosage forms, and specifically, the thickener may be one or more of xanthan gum, polyvinyl alcohol, polyacrylate alcohol, polyethylene glycol, white carbon black, diatomaceous earth, kaolin, clay, sodium alginate, aluminum magnesium silicate, aluminum sodium silicate, carboxymethyl cellulose, hydroxypropyl cellulose sodium, and organic bentonite.
The capsule wall material can be various capsule wall materials known in the pesticide formulation field, and the invention is preferably polyurethane, polyurea or urea-formaldehyde resin.
The protective agent may be any of various protective agents known in the field of agricultural chemical formulations, and the present invention is preferably polyvinyl alcohol and/or polyethylene glycol.
The above defoamer may be various defoamers known in the field of pesticide formulation, and the present invention is preferably one or more of organosiloxane, tributyl phosphate and silicone.
The stabilizer is one or more selected from triphenyl phosphite, epichlorohydrin and acetic anhydride.
The preservative is selected from one or more of benzoic acid, sodium benzoate, 1, 2-benzisothiazolin-3-one (BIT for short), pinocembrane and potassium sorbate.
The dosage form of the herbicide composition according to the present invention may be various dosage forms commonly used in the art, for example, the dosage form of the herbicide composition may be emulsifiable concentrate, aqueous emulsion, aqueous suspension, oil suspension, suspoemulsion, dispersible oil suspension, wettable powder, soluble powder, water dispersible granule or soluble granule. The above dosage forms can be prepared by methods conventional in the art.
Preferably, the emulsifiable concentrate preparation comprises 1-95% of active ingredients, 0-20% of cosolvent, 1-30% of emulsifier and the balance of solvent to 100% by weight.
The preparation method of the emulsifiable concentrate preparation can comprise, for example, mixing and stirring the active components, the solvent, the cosolvent and the emulsifier to form a uniform transparent oil phase, thus obtaining the emulsifiable concentrate preparation.
Preferably, the aqueous emulsion or microemulsion comprises 1-95% of active ingredient, 1-30% of emulsifying agent, 0-30% of cosolvent, 1-30% of solvent, 0-10% of antifreezing agent, 0-10% of thickening agent and water to 100%.
Preferably, the aqueous emulsion preparation method may include, for example, mixing the active ingredient, the emulsifier, the cosolvent and the solvent to form a homogeneous oil phase; water, thickener, antifreeze, etc. are mixed to make it into a uniform aqueous phase. Under high-speed shearing, adding the water phase into the oil phase or adding the oil phase into the water phase to form the aqueous emulsion with good dispersibility.
Preferably, the microemulsion is prepared by mixing and stirring the active ingredient, the emulsifier and the solvent into a uniform transparent oil phase. Under stirring. Gradually adding water to form uniform transparent microemulsion.
Preferably, the water suspending agent comprises 1-95% of active ingredient, 1-30% of surfactant, 1-10% of antifreezing agent, 0.1-5% of thickening agent and water which is added to 100%.
Preferably, the oil suspending agent comprises 1-95% of active ingredient, 1-30% of emulsifying agent, 0.1-10% of dispersing agent, 0.1-5% of thickening agent and oil which is up to 100%.
The preparation method of the water/oil suspending agent comprises the following steps: water or oil is used as medium, active component surfactant, assistant, etc. are added into a sand grinding kettle, ground to certain particle size and filtered. And adding the metered thickener into the ground mother solution, and shearing and dispersing uniformly. Making into oil suspension or water suspension.
Preferably, the composition of the soluble granule, the soluble powder, the water dispersible granule or the wettable powder is 1-95% of active ingredients, 1-30% of surfactants and the balance of other carriers to 100% by weight.
The preparation method of the water-dispersible granule and the soluble granule comprises the following steps: mixing the active components, dispersant, wetting agent, carrier, etc. uniformly, crushing to certain particle size through airflow, adding water for kneading, adding into a granulator for granulating, and drying to obtain water-dispersible granules or soluble granules.
The preparation method of the soluble powder and the wettable powder comprises the following steps: mixing the active components, adjuvants and other carriers, and pulverizing with superfine pulverizer.
Preferably, the microcapsule suspending agent comprises, by weight, 1-95% of an active ingredient, 1-30% of a solvent, 0.1-5.0% of a protective agent, 0.05-1.0% of a defoaming agent, 1-30% of a capsule wall material, 1-30% of a dispersing agent, 0-30% of a wetting agent, 0-10% of an antifreezing agent, 0.1-5% of a thickening agent and water to 100%.
The preparation method comprises the following steps: mixing the solvent and the capsule wall material, and then adding the active ingredients; adding the mixture of the protective agent, the antifreezing agent, the defoaming agent and water into the mixture for emulsification, and stirring until the polymerization reaction is completed; and adding a thickening agent, a dispersing agent and a wetting agent to obtain the stable microcapsule suspending agent.
The invention also provides application of the herbicide composition in preventing and controlling annual gramineae and broadleaf weeds.
The invention also provides application of the herbicide composition in preventing and controlling annual gramineae and broadleaf weeds in soybean fields.
The weeds can be one or more of green bristlegrass, crabgrass, barnyard grass, bluegrass, alopecuroide, amaranthus retroflexus, quinoa, dayflower, purslane, japanese thistle, stichopus japonicus, green bristlegrass and wild oat; preferably one or more of green bristlegrass, crabgrass, barnyard grass, wild oat, dayflower, amaranth, thistle, quinoa and stichopus japonicus; more preferably one or more of green bristlegrass, crabgrass, amaranthus retroflexus and chenopodium album.
In particular, the inventors of the present invention have also unexpectedly found that the herbicidal composition provided by the present invention is extremely remarkable in the control effect on green bristlegrass, crabgrass, amaranthus retroflexus and chenopodium album, and also has high safety to crops (for example, soybeans).
The herbicide compositions of the invention may be provided in the form of a finished formulation, i.e. the materials of the composition have been mixed; or in the form of separate preparations which are self-mixed in a tank or can before use and optionally diluted with water depending on the desired concentration of active substance.
The compositions of the invention may also be used in combination with other compounds having fungicidal, insecticidal or herbicidal properties, and also with nematicides, protectants, growth regulators, plant nutrients or soil conditioners.
According to the present invention, the specific application method of the herbicide composition is generally to apply the herbicide composition of the present invention to crops and the locus where the crops grow in a conventional manner before the weeds germinate. The application method is soil sealing and is simple. The herbicide composition of the invention is preferably subjected to soil sealing treatment after sowing and before seedling emergence, and can prevent and remove unembossed weeds. The herbicide composition provided by the invention is applied in an amount which is dependent on weather conditions or crop conditions, and the content of the active ingredient is generally 50-1800g/hm 2 Is preferably applied at a concentration of 200-1500g/hm 2 Is administered at a concentration of (2). The amount of herbicide composition provided by the invention is also dependent on external factors such as weather.
The application amount of the herbicide composition provided by the invention can slow down the influence of climate by using proper dosage forms.
The present invention will be further illustrated by the following specific examples, but the present invention is not limited to the following examples.
In the following test examples and preparations, metazachlor was purchased from Shanghai group chemical industry Co., ltd (purity 98% by weight); oxaziclomefone was purchased from the Hangzhou Yingtai biotechnology Co., ltd with a purity of 90% by weight); pendimethalin was purchased from Hebei Mo Quanli Hua chemical industry Co., ltd (purity 95% by weight).
In the following examples, preparation examples and test examples, the amounts of the active ingredients were actual amounts, i.e., amounts obtained by subtracting impurities.
Example 1
The combined effect of haloxyfop, metribuzin and pendimethalin on common grasses and broadleaf weeds is described below by an indoor toxicity assay.
Preparation of test agent: the metazoxazole crude drug, the metribuzin crude drug and the pendimethalin crude drug are respectively dissolved by proper amount of acetone, and then are prepared into required concentration for standby by 0.1 weight percent of Tween 80 aqueous solution.
The test method comprises the following steps: the experiment adopts a greenhouse potting method, and seeds of green bristlegrass (Gramineae), crabgrass (Gramineae), amaranth (broadleaf weeds) and chenopodium album (broadleaf weeds) are respectively sown in small flowerpots filled with 3/5 culture soil (field soil: nutrient soil: vermiculite=3:1:1), 6 multiplied by 6 seeds are sown in each pot, and soil is covered for 1-2 mm after sowing. Adding water into a tray provided with a small flowerpot, pouring out excessive water in the tray after the nutrient soil is fully soaked by the water, and carrying out soil spraying treatment after 24 hours. Carrying out stem and leaf spraying treatment by using an ASS-5 walking type spray tower, setting clear water treatment as a blank control, transferring to a greenhouse, continuously culturing and observing, and investigating the fresh weight of the overground part after 20 days. Except that the water cannot be watered in 1-2 days after spraying the pesticide, the water is watered periodically so as to keep the soil humidity.
Weed control was calculated according to the following formula.
The data statistical analysis method comprises the following steps:
the herbicidal activity of the mixture was examined by the Colby method, namely E 0 =abc/10000; wherein A is a single-dose impurity of herbicide 1 (metazachlor)Fresh weight of grass, B is fresh weight of single-dose weed of herbicide 2 (metribuzin), C is fresh weight of single-dose weed of herbicide 3 (pendimethalin), E 0 The fresh weight rate of the mixed herbicide is the theoretical fresh weight rate of the weeds, and E is the actual measured fresh weight rate of the mixed herbicide. According to the Colby method, when E 0 -E>10% of the total amount of the herbicide indicates that the herbicide mixture has synergistic effect; when E is 0 -E<-10% indicating antagonism of the herbicide combination; when E is 0 E values between.+ -. 10% indicate that the herbicide formulation produces an additive effect.
The following tests were performed separately: (results are shown in tables 1 and 2)
The combination effect of the haloxyfop-methyl, metribuzin and pendimethalin composition on the Gramineae is tested, and the proportion and the result are shown in table 1.
The combined effect of the compositions of haloxyfop-methyl, metribuzin and pendimethalin on broadleaf weeds is tested, and the proportion and the result are shown in Table 2.
TABLE 1
The results in table 1 show that the compositions of haloxyfop, metribuzin and pendimethalin, the amounts of the agents provided, show a significant synergistic effect on bristlegrass and Ma Tangjun. And, in the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 15:200: 400. 15:100: 200. 30:25: 200. 15:200: 100. 30:100: 100. 7.5:200: 100. 60:100: 50. 30:50:100. 15:200: 50. 7.5:200: 400. 60:50: 50. 30:100: 400. 60:100: 400. 15:50: 50. 30:200: 400. 60:200: 100. 7.5:50:400 or 30:200: at 200, the synergy is more remarkable.
TABLE 2
The results in Table 2 show that the compositions of haloxyfop-methyl, metribuzin and pendimethalin provide for the amount of the agent to show significant synergism on broadleaf weeds amaranth and quinoa. And, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is preferably 15:100: 200. 7.5:25: 200. 7.5:100: 50. 60:50: 50. 30:50: 400. 7.5:200: 400. 7.5:25: 400. 30:50: 200. 15:200: 100. 15:25: 400. 60:25: 50. 30:200: 100. 7.5:25: 50. 7.5:50: 400. 15:25: 100. 15:100:400 or 30:50: at 100, the synergy is more remarkable.
Formulation example 1 (15 wt% fenpyrad, zinone, pendimethalin emulsifiable concentrate)
The formula comprises the following components: 30g of metazachlor, 30g of metribuzin, 90g of pendimethalin, 300g of solvent oil 150# (cosolvent), 10g of calcium dodecyl benzene sulfonate (emulsifier), 60g of castor oil polyoxyethylene ether (emulsifier) and 1kg of xylene (solvent);
the preparation method comprises the following steps: the components with the weight percentages are mixed into a uniform oil phase, namely the emulsifiable concentrate containing 15 weight percent of active ingredients.
Formulation example 2 (9 wt% of fenpyrad, zinone, pendimethalin aqueous emulsion)
The formula comprises the following components: 10g of pyriproxyfen, 35g of metribuzin, 45g of pendimethalin, 300g of N, N-dimethylformamide, 40g of castor oil polyoxyethylene ether, 40g of fatty alcohol polyoxyethylene ether, 50g of 1, 2-propylene glycol, 10g of xanthan gum and water to 1kg.
The preparation method comprises the following steps: mixing the paraquat chloride, the metribuzin, the pendimethalin, the N-methylpyrrolidone, the castor oil polyoxyethylene ether and the fatty alcohol polyoxyethylene ether to form a uniform oil phase; mixing ethylene glycol, xanthan gum and water into a homogeneous aqueous phase; the oil phase was added to the aqueous phase under high speed stirring to form an aqueous emulsion containing 9 wt% active ingredient with good dispersibility.
Formulation example 3 (30 wt% Mexazopyr-metribuzin-pendimethalin dispersible oil suspension)
The formula comprises the following components: 100g of fenpyrazamine, 100g of metribuzin, 100g of pendimethalin, 60g of polyoxyethylene fatty acid ester, 40g of sorbitol polyoxyethylene ether, 40g of organic bentonite and 1kg of methyl oleate.
Methyl oleate is used as a medium, the haloxyfop-methyl, the metribuzin, the pendimethalin, the polyoxyethylene fatty acid ester and the sorbitol polyoxyethylene ether are added into a sanding kettle to be ground, and the oil suspending agent containing 30 weight percent of active ingredients is obtained.
Formulation example 4 (22 wt% penoxsulam-metribuzin-pendimethalin suspension)
The formula comprises the following components: 70g of metazachlor, 25g of metribuzin, 125g of pendimethalin, 60g of naphthalene sulfonate (dispersing agent), 40g of polyoxyethylene ether (wetting agent), 150g of glycerol (antifreeze), 60g of sodium alginate (thickening agent), 10g of organosilicon defoamer and water to 1000g;
the preparation method comprises the following steps: the method comprises the steps of taking water as a medium, adding the weight of the fenpyrad, the metribuzin, the pendimethalin, the naphthalene sulfonate, the polyoxyethylene ether, the glycerol, the sodium alginate, the organic silicon defoamer and the water into a shearing kettle, shearing uniformly, and then grinding into fine powder in the sanding kettle to obtain the suspending agent containing 22 weight percent of active ingredients.
Formulation example 5 (34 wt% penoxsulam-metribuzin-pendimethalin suspension emulsion)
20g of pyriproxyfen, 80g of metribuzin, 240g of pendimethalin, 300g of solvent oil No. 200, 80g of calcium dodecyl benzene sulfonate, 80g of fatty alcohol polyoxyethylene ether, 30g of xanthan gum, 60g of propylene glycol and water to 1kg.
Adding the haloxyfop-methyl, the metribuzin, the calcium dodecyl benzene sulfonate, the fatty alcohol-polyoxyethylene ether, the xanthan gum and the propylene glycol into a sanding kettle to be ground to obtain a haloxyfop-methyl and metribuzin water suspension; fully mixing pendimethalin, solvent oil No. 150, sodium dodecyl benzene sulfonate and fatty alcohol polyoxyethylene ether to form an oil phase; the oil phase is added into the fenpyrad-zinone water suspending agent to obtain the suspension emulsion containing 34 weight percent of active ingredients.
Formulation example 6 (60 wt% fenpyrad, zinone, pendimethalin water dispersible granule)
The formula comprises the following components: 200g of fenpyrad, 200g of metribuzin, 200g of pendimethalin, 150g of rosin block polyoxyethylene ether polyoxypropylene ether sulfonate, 50g of calcium lignosulfonate, 100g of starch and 1kg of diatomite.
The preparation method comprises the following steps: the water-dispersible granule containing 60 weight percent of active ingredients is prepared by mixing and crushing the paraquat sulfone, the metribuzin, the pendimethalin, the rosin block polyoxyethylene ether polyoxypropylene ether sulfonate, the calcium lignosulfonate, the starch and the diatomite and extruding and granulating.
Formulation example 7 (60 wt% topramezone-pendimethalin wettable powder)
The formula comprises the following components: 50g of metazachlor, 150g of metribuzin, 400g of pendimethalin, 100g of sodium dodecyl sulfate (wetting agent), 150g of naphthalene sulfonate (dispersing agent) and 1000g of ammonium sulfate (filler);
the preparation method comprises the following steps: the weight of the haloxyfop-methyl, the metribuzin, the pendimethalin, the sodium dodecyl sulfate, the naphthalene sulfonate and the ammonium sulfate are mixed and crushed to prepare the wettable powder with 60 weight percent of active ingredients.
Formulation example 8 (65 wt% topramezone-zinone-pendimethalin wettable powder)
The formula comprises the following components: 50g of metazachlor, 200g of metribuzin, 400g of pendimethalin, 80g of alkylphenol ethoxylate sulfate (wetting agent), 80g of sodium hydroxyphenyl lignosulfonate (dispersing agent), 20g of white carbon black (filling material) and 1kg of light calcium carbonate;
the preparation method comprises the following steps: the weight of the haloxyfop-methyl, the metribuzin-pendimethalin, the alkylphenol ethoxylate sulfate, the sodium hydroxyphenyl lignosulfonate, the white carbon black and the light calcium carbonate are mixed and crushed to prepare the wettable powder with 65 weight percent of active ingredients.
Test example 1
Test reagent:
formulations prepared in formulation examples 1-8;
18 wt% of paraquat sulfone SC (18% of paraquat sulfone SC): 18.6g of metazopyr, 5g of sodium lignin sulfonate, 3g of sodium dodecyl sulfate, 6g of 1, 2-propylene glycol, 0.5g of organosilicon defoamer and 100g of water are added into a shearing kettle, sheared uniformly, and then ground and filtered in a sanding kettle to obtain the fenpyr;
48 wt% metribuzin SC (48% metribuzin SC): adding 48g of metribuzin, 2g of sodium lignin sulfonate, 3g of polycarboxylate, 6g of urea, 0.5g of defoamer and 100g of water into a shearing kettle, shearing uniformly, grinding in a sanding kettle, and filtering to obtain the product;
33 wt% pendimethalin EC (33% pendimethalin EC): registration number: PD20094188, available from Shenyang scientific chemical Co.
The testing method comprises the following steps:
the test method comprises the following steps: the experiment adopts a greenhouse potting method, and seeds of green bristlegrass (Gramineae), crabgrass (Gramineae), amaranth (broadleaf weeds) and chenopodium album (broadleaf weeds) are respectively sown in small flowerpots filled with 3/5 culture soil (field soil: nutrient soil: vermiculite=3:1:1), 6 multiplied by 6 seeds are sown in each pot, and soil is covered for 1-2 mm after sowing. Adding water into a tray provided with a small flowerpot, and pouring out the redundant water in the tray after the water fully wets the culture soil. Soil spray treatment is carried out by an ASS-5 walking spray tower 24h after sowing, clear water treatment is set as a blank control, then the soil is transferred to a greenhouse for continuous culture observation, and the weeding effect of each treatment is investigated after 20 days. Except that the water cannot be watered in 1-2 days after spraying the pesticide, the water is watered periodically so as to keep the soil humidity.
The weeding effect calculating method comprises the following steps:
the test results are shown in Table 3.
TABLE 3 Table 3
As can be seen from the results in Table 3, the composition of the haloxyfop-R-methyl, the metribuzin and the pendimethalin has remarkable control effect on the green bristlegrass, the crabgrass and the broadleaf weeds, namely, the amaranthus retroflexus.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.

Claims (10)

1. The herbicide composition is characterized in that the active ingredients of the herbicide composition contain haloxyfop-methyl, metribuzin and pendimethalin.
2. The herbicide composition according to claim 1, wherein the active ingredient is present in the herbicide composition in an amount of 1-98 wt%, preferably 5-80 wt%, more preferably 6-50 wt%.
3. The herbicide composition of claim 1, wherein the weight ratio of haloxyfop-methyl, metribuzin and pendimethalin is 1:0.1-30:0.1-60;
preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:0.4-27:0.8-54;
preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:0.8-27:1.6-54;
preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:1.6-27:3.3-54;
preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:3.3-27:6.6-54;
preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:6.6-27:13.3-54;
preferably, the weight ratio of the fenpyrad, the metribuzin and the pendimethalin is 1:13.3-27:26.6-54.
4. The herbicide composition of claim 1, wherein the weight ratio of haloxyfop-methyl, metribuzin and pendimethalin is 7.5:25: 50. 7.5:25: 100. 7.5:25: 200. 7.5:25: 400. 7.5:50: 50. 7.5:50: 100. 7.5:50: 200. 7.5:50: 400. 7.5:100: 50. 7.5:100: 100. 7.5:100: 200. 7.5:100: 400. 7.5:200: 50. 7.5:200: 100. 7.5:200: 200. 7.5:200: 400. 15:25: 50. 15:25: 100. 15:25: 200. 15:25: 400. 15:50: 50. 15:50: 100. 15:50: 200. 15:50: 400. 15:100: 50. 15:100: 100. 15:100: 200. 15:100: 400. 15:200: 50. 15:200: 100. 15:200: 200. 15:200: 400. 30:25: 50. 30:25: 100. 30:25: 200. 30:25: 400. 30:50: 50. 30:50:100. 30:50: 200. 30:50: 400. 30:100: 50. 30:100: 100. 30:100: 200. 30:100: 400. 30:200: 50. 30:200: 100. 30:200:200. 30:200: 400. 60:25: 50. 60:25: 100. 60:25: 200. 60:25: 400. 60:50: 50. 60:50: 100. 60:50: 200. 60:50: 400. 60:100: 50. 60:100: 100. 60:100: 200. 60:100: 400. 60:200: 50. 60:200: 100. 60:200:200 or 60:200:400.
5. the herbicide composition of any one of claims 1-4, wherein the herbicide composition further comprises an agropharmaceutically acceptable surfactant and carrier.
6. The herbicide composition of claim 5, wherein the herbicide composition is in the form of an emulsifiable concentrate, an aqueous emulsion, an aqueous suspension, an oil suspension, a suspoemulsion, a dispersible oil suspension, a wettable powder, a soluble powder, a water dispersible granule or a soluble granule.
7. Use of the herbicide composition of any one of claims 1-6 for controlling annual and perennial grasses and broadleaf weeds.
8. Use of the herbicide composition of any one of claims 1-6 for controlling annual and perennial grasses and broadleaf weeds in soybean fields.
9. The use according to claim 7 or 8, wherein the weeds are one or more of green bristlegrass, crabgrass, barnyard grass, bluegrass, myrtle, amaranth, quinoa, dayflower, purslane, thistle, stichopus japonicus, green bristlegrass and wild oat.
10. The use according to claim 9, wherein the weeds are one or more of green bristlegrass, crabgrass, amaranthus retroflexus and chenopodium album.
CN202210857955.3A 2022-07-20 2022-07-20 Herbicide composition and application thereof Pending CN117481127A (en)

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