CN112715545A - Herbicide composition containing benzobicylon, quinclorac and metamifop - Google Patents
Herbicide composition containing benzobicylon, quinclorac and metamifop Download PDFInfo
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- CN112715545A CN112715545A CN202110077080.0A CN202110077080A CN112715545A CN 112715545 A CN112715545 A CN 112715545A CN 202110077080 A CN202110077080 A CN 202110077080A CN 112715545 A CN112715545 A CN 112715545A
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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
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/10—Sulfones; Sulfoxides
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
- A01N43/42—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings condensed with carbocyclic rings
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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
- A01N43/74—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 1,3
- A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
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Abstract
The herbicide composition comprises benzobicylon, quinclorac and metamifop, and the dispersible oil suspension herbicide composition, wherein the active ingredients in the herbicide composition comprise benzobicylon, quinclorac and metamifop. The oil suspension herbicide composition is prepared from, by weight, 75-180 parts of solvent oil, 10-25 parts of benzobicyclon, 1-30 parts of quinclorac, 1-55 parts of metamifop, 3-8 parts of calcium dodecyl benzene sulfonate, 1-2 parts of alkylphenol polyoxyethylene ether, 2-5 parts of organic bentonite, 2-5 parts of a compound defoaming agent and 2-5 parts of propylene glycol. The weeding effect is mutually overlapped by the action of the three after the benzobicylon, the quinclorac and the metamifop are mixed, so that the weeding activity is increased, the effective dose is reduced, and the weeding range is overlapped by the weeding range of the three after the benzobicylon, the quinclorac and the metamifop are mixed, so that the weeding spectrum of the obtained herbicide composition is widened.
Description
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a herbicide composition containing benzobicyclon, quinclorac and metamifop.
Background
The bicyclsulcotrione is a herbicide with broad-spectrum selectivity and long lasting period for preventing and killing weeds in a direct seeding field and a transplanting field of rice. The benzobicylon has a dicyclic structure and a diphenyl sulfide structure, has strong soil adsorption, and can inhibit HPPD to influence the synthesis of plastoquinone, and the plastoquinone can act on Phytoene Dehydrogenase (PDS) to finally influence the biosynthesis of carotenoid to whiten leaves. Its advantages are long acting period.
The quinclorac is a specific selective herbicide for preventing and killing barnyard grass in a paddy field, belongs to hormone quinoline carboxylic acid herbicides, and has similar weed poisoning symptoms to auxin effects. The method is mainly used for preventing and controlling barnyard grass, and has the advantages of long pot life and good rice safety.
Metamifop is an aryloxy phenoxy propionate herbicide developed by Korean chemical technology research institute, and can well prevent and kill most annual gramineous weeds. Its advantages are high safety to environment and wide compatibility.
With the continuous use of pesticides, target crops are easy to generate drug resistance, the effective dose of the pesticides is gradually increased, and the environmental and food safety problems caused by pesticide residues are increasingly serious.
In the prior art, two or more than two active ingredients are combined for use, so that the weeding effect is improved, and meanwhile, the weeding composition has the positive characteristics of prolonging the application period, reducing the dosage, reducing the phytotoxicity, reducing the residue, delaying the occurrence and development of drug resistance and the like. Herbicide compounding or compounding is one of the most effective ways to solve the above problems.
The applicant has previously investigated and found that in the prior art, the benzobicyclon-e and other herbicides are subjected to binary compounding, for example, in CN103348981B, a herbicide composition is formed by compounding a first effective component, namely the benzobicyclon-e, and a second effective component, namely any one of acetochlor, metolachlor, propisochlor, butachlor, mefenacet, penoxsulam, cyhalofop-butyl, quinclorac, bensulfuron-methyl, pyrazosulfuron-ethyl, cinosulfuron-methyl, clomazone, fenoxaprop-p-ethyl, carfentrazone-ethyl and isoproturon in a weight ratio of (1: 8) to (8: 1). But there is no report on the ternary built herbicide composition of benzobicylon, quinclorac and metamifop. Therefore, the herbicide composition of the benzobicyclon, the quinclorac and the metamifop can improve the effect of the plant herbicide on preventing and controlling weeds and can slow down the generation of drug resistance.
Disclosure of Invention
The invention aims to provide a herbicide composition of benzobicyclon, quinclorac and metamifop, which can improve the effect of a plant herbicide on weed control and slow down the generation of drug resistance.
The invention achieves the purpose through the following technical scheme:
the herbicide composition containing the benzobicyclon, the quinclorac and the metamifop and the dispersible oil-suspension herbicide composition are characterized in that active ingredients in the herbicide composition comprise the benzobicyclon, the quinclorac and the metamifop.
Further, the oil suspension agent weeding composition is prepared from the following raw materials, by weight, 75-180 parts of solvent oil, 10-25 parts of benzobicyclon, 1-30 parts of quinclorac, 1-55 parts of metamifop, 3-8 parts of calcium dodecyl benzene sulfonate, 1-2 parts of alkylphenol polyoxyethylene ether, 2-5 parts of organic bentonite, 2-5 parts of a compound defoaming agent and 2-5 parts of propylene glycol;
the preparation method of the dispersible oil suspension herbicide composition comprises the following steps:
step A, uniformly mixing calcium dodecyl benzene sulfonate, alkylphenol ethoxylates, organic bentonite, a compound defoaming agent, propylene glycol and part of solvent oil in a stirrer, and transferring to a shearing kettle for shearing to obtain a sheared mixed material;
b, adding the cut mixed material obtained in the step A into a sand mill for sanding, adding the benzobicyclon, quinclorac and metamifop at the same time, and sanding until the particle size of the material is less than 2-3 microns to obtain a sanded mixed material;
and C, washing the shearing machine and the sand mill by using the rest part of the solvent oil, transferring the obtained washing liquid and the mixed material after sand milling to a shearing kettle, and performing secondary shearing and uniform shearing to obtain the dispersible oil suspending agent weeding composition.
Further, the solvent oil is one or a mixture of more of soybean oil, white oil, turpentine and methyl naphthalene higher fatty hydrocarbon oil.
Further, the compound defoaming agent is prepared from the following raw materials, by weight, 10-60 parts of polyethylene glycol, 5-50 parts of epoxidized soybean oil, 0.2-0.5 part of concentrated sulfuric acid, 5-100 parts of simethicone, 1-3 parts of white carbon black, 0.5-1.5 parts of sorbitol, 0.5-1.5 parts of sorbitan stearate, 1-3 parts of sodium carboxymethylcellulose and 2-5 parts of fatty alcohol-polyoxyethylene ether;
the preparation method of the compound defoaming agent comprises the following steps:
step 1, adding epoxidized soybean oil, polyethylene glycol and concentrated sulfuric acid into a four-mouth bottle with a stirrer and a condensing device, putting the four-mouth bottle into a water bath kettle, stirring and heating to 145 ℃ for 135 ℃ and adding ammonia under the protection of nitrogen, reacting for 2-4 hours, and cooling to room temperature to obtain modified epoxidized soybean oil;
step 2, sequentially adding the white carbon black and the fatty alcohol-polyoxyethylene ether into the dimethyl silicone oil, uniformly mixing, then adding the modified epoxidized soybean oil obtained in the step 1, stirring for 10-25 minutes, heating to 110-180 ℃, preserving heat for 3-6 hours, and cooling to mixed silicon paste;
and 3, adding sorbitol and sorbitan stearate into deionized water, heating to 60-90 ℃, stirring for 10-25 minutes to completely dissolve the sorbitol and sorbitan stearate, then adding sodium carboxymethylcellulose, uniformly mixing, adding the silicon paste, uniformly mixing, rapidly stirring for 60-80 minutes under the condition of 700 plus materials at 1000r/min, rapidly shearing for 20-40 minutes under the condition of 9000 plus materials at 10000r/min by using a high-shear emulsifying machine, and cooling to room temperature to obtain the compound defoaming agent.
Further, the epoxidized soybean oil has an epoxy value of 4.0 to 4.5.
Further, the molecular weight of the polyethylene glycol is 400-500.
The invention has the beneficial effects that:
1. the weeding activity is high. After the benzobicylon, quinclorac and metamifop are mixed, the weeding effect is mutually overlapped, so that the weeding activity is increased, and the effective dose is reduced;
2. wide herbicidal spectrum and long acting period. The herbicide composition has a wider weeding spectrum after the mixture of the benzobicyclon, the quinclorac and the metamifop, has dual effects of stem leaf treatment and hermetical sealing, and has a long working life and a long validity period;
3. the defoaming agent used in the invention is a compound defoaming agent of modified epoxidized soybean oil and organic silicone oil, has excellent defoaming, foam inhibition and shear resistance, and has good biodegradability.
Therefore, in conclusion, the mixed herbicide provided by the invention has high efficiency and broad spectrum, reduces the pesticide dosage, can improve the effect of the plant herbicide on weed control, and can slow down the generation of drug resistance.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the herbicide composition containing the benzobicyclon, the quinclorac and the metamifop and the dispersible oil-suspension herbicide composition are characterized in that active ingredients in the herbicide composition comprise the benzobicyclon, the quinclorac and the metamifop.
The oil suspension agent weeding composition is prepared from the following raw materials, by weight, 75 parts of solvent oil, 10 parts of benzobicyclon, 1 part of quinclorac, 1 part of metamifop, 3 parts of calcium dodecyl benzene sulfonate, 1 part of alkylphenol polyoxyethylene ether, 2 parts of organobentonite, 2 parts of a compound defoaming agent and 2 parts of propylene glycol;
the preparation method of the dispersible oil suspension herbicide composition comprises the following steps:
step A, uniformly mixing calcium dodecyl benzene sulfonate, alkylphenol ethoxylates, organic bentonite, a compound defoaming agent, propylene glycol and part of solvent oil in a stirrer, and transferring to a shearing kettle for shearing to obtain a sheared mixed material, wherein the solvent oil is soybean oil;
b, adding the cut mixed material obtained in the step A into a sand mill for sanding, adding the benzobicyclon, quinclorac and metamifop at the same time, and sanding until the particle size of the material is less than 2 microns to obtain a sanded mixed material;
and C, washing the shearing machine and the sand mill by using the rest part of the solvent oil, transferring the obtained washing liquid and the mixed material after sand milling to a shearing kettle, and performing secondary shearing and uniform shearing to obtain the dispersible oil suspending agent weeding composition.
The composite defoaming agent is prepared from the following raw materials, by weight, 10 parts of polyethylene glycol, 5 parts of epoxidized soybean oil, 0.2 part of concentrated sulfuric acid, 5 parts of simethicone, 1 part of white carbon black, 0.5 part of sorbitol, 0.5 part of sorbitan stearate, 1 part of sodium carboxymethylcellulose and 2 parts of fatty alcohol-polyoxyethylene ether;
the preparation method of the compound defoaming agent comprises the following steps:
step 1, adding epoxidized soybean oil, polyethylene glycol and concentrated sulfuric acid into a four-mouth bottle with a stirrer and a condensing device, putting the four-mouth bottle into a water bath kettle, stirring and heating to 135 ℃ under the protection of nitrogen, reacting for 2 hours, and cooling to room temperature to obtain modified epoxidized soybean oil, wherein the epoxy value of the epoxidized soybean oil is 4.0, and the molecular weight of the polyethylene glycol is 400;
step 2, sequentially adding white carbon black and fatty alcohol-polyoxyethylene ether into dimethyl silicone oil, uniformly mixing, adding the modified epoxidized soybean oil obtained in the step 1, stirring for 25 minutes, heating to 140 ℃, preserving heat for 4 hours, and cooling to obtain a mixed silicon paste;
and 3, adding sorbitol and sorbitan stearate into deionized water, heating to 70 ℃, stirring for 20 minutes to completely dissolve the sorbitol and sorbitan stearate, then adding sodium carboxymethylcellulose, uniformly mixing, adding the silicon paste, uniformly mixing, rapidly stirring for 60 minutes at 800r/min, shearing for 20 minutes at high speed at 9000r/min by using a high-shear emulsifying machine, and cooling to room temperature to obtain the compound defoaming agent.
Example 2:
the herbicide composition containing the benzobicyclon, the quinclorac and the metamifop and the dispersible oil-suspension herbicide composition are characterized in that active ingredients in the herbicide composition comprise the benzobicyclon, the quinclorac and the metamifop.
The oil suspension agent weeding composition is prepared from the following raw materials, by weight, 120 parts of solvent oil, 15 parts of benzobicyclon, 15 parts of quinclorac, 15 parts of metamifop, 5 parts of calcium dodecyl benzene sulfonate, 1 part of alkylphenol polyoxyethylene ether, 3 parts of organic bentonite, 3 parts of a compound defoaming agent and 3 parts of propylene glycol;
the preparation method of the dispersible oil suspension herbicide composition comprises the following steps:
step A, uniformly mixing calcium dodecyl benzene sulfonate, alkylphenol ethoxylates, organic bentonite, a compound defoaming agent, propylene glycol and part of solvent oil in a stirrer, and transferring to a shearing kettle for shearing to obtain a sheared mixed material, wherein the solvent oil is soybean oil;
b, adding the cut mixed material obtained in the step A into a sand mill for sanding, adding the benzobicyclon, quinclorac and metamifop at the same time, and sanding until the particle size of the material is less than 3 microns to obtain a sanded mixed material;
and C, washing the shearing machine and the sand mill by using the rest part of the solvent oil, transferring the obtained washing liquid and the mixed material after sand milling to a shearing kettle, and performing secondary shearing and uniform shearing to obtain the dispersible oil suspending agent weeding composition.
The composite defoaming agent is prepared from the following raw materials, by weight, 20 parts of polyethylene glycol, 30 parts of epoxidized soybean oil, 0.3 part of concentrated sulfuric acid, 60 parts of simethicone, 2 parts of white carbon black, 1 part of sorbitol, 1 part of sorbitan stearate, 2 parts of sodium carboxymethylcellulose and 3 parts of fatty alcohol-polyoxyethylene ether;
the preparation method of the compound defoaming agent comprises the following steps:
step 1, adding epoxidized soybean oil, polyethylene glycol and concentrated sulfuric acid into a four-mouth bottle with a stirrer and a condensing device, putting the four-mouth bottle into a water bath kettle, stirring and heating to 135 ℃ under the protection of nitrogen, reacting for 2 hours, and cooling to room temperature to obtain modified epoxidized soybean oil, wherein the epoxy value of the epoxidized soybean oil is 4.0, and the molecular weight of the polyethylene glycol is 500;
step 2, sequentially adding white carbon black and fatty alcohol-polyoxyethylene ether into dimethyl silicone oil, uniformly mixing, adding the modified epoxidized soybean oil obtained in the step 1, stirring for 25 minutes, heating to 140 ℃, preserving heat for 4 hours, and cooling to obtain a mixed silicon paste;
and 3, adding sorbitol and sorbitan stearate into deionized water, heating to 70 ℃, stirring for 20 minutes to completely dissolve the sorbitol and sorbitan stearate, then adding sodium carboxymethylcellulose, uniformly mixing, adding the silicon paste, uniformly mixing, rapidly stirring for 60 minutes at 800r/min, shearing for 20 minutes at high speed at 9000r/min by using a high-shear emulsifying machine, and cooling to room temperature to obtain the compound defoaming agent.
Example 3:
the herbicide composition containing the benzobicyclon, the quinclorac and the metamifop and the dispersible oil-suspension herbicide composition are characterized in that active ingredients in the herbicide composition comprise the benzobicyclon, the quinclorac and the metamifop.
The oil suspension agent weeding composition is prepared from the following raw materials, by weight, 180 parts of solvent naphtha, 25 parts of benzobicyclon, 30 parts of quinclorac, 55 parts of metamifop, 8 parts of calcium dodecyl benzene sulfonate, 2 parts of alkylphenol polyoxyethylene ether, 5 parts of organic bentonite, 5 parts of a compound defoaming agent and 5 parts of propylene glycol;
the preparation method of the dispersible oil suspension herbicide composition comprises the following steps:
step A, uniformly mixing calcium dodecyl benzene sulfonate, alkylphenol ethoxylates, organic bentonite, a compound defoaming agent, propylene glycol and part of solvent oil in a stirrer, and transferring to a shearing kettle for shearing to obtain a sheared mixed material, wherein the solvent oil is turpentine;
b, adding the cut mixed material obtained in the step A into a sand mill for sanding, adding the benzobicyclon, quinclorac and metamifop at the same time, and sanding until the particle size of the material is less than 3 microns to obtain a sanded mixed material;
and C, washing the shearing machine and the sand mill by using the rest part of the solvent oil, transferring the obtained washing liquid and the mixed material after sand milling to a shearing kettle, and performing secondary shearing and uniform shearing to obtain the dispersible oil suspending agent weeding composition.
The composite defoaming agent is prepared from the following raw materials, by weight, 160 parts of polyethylene glycol, 50 parts of epoxidized soybean oil, 0.5 part of concentrated sulfuric acid, 100 parts of simethicone, 3 parts of white carbon black, 1.5 parts of sorbitol, 1.5 parts of sorbitan stearate, 3 parts of sodium carboxymethylcellulose and 5 parts of fatty alcohol-polyoxyethylene ether;
step 1, adding epoxidized soybean oil, polyethylene glycol and concentrated sulfuric acid into a four-mouth bottle with a stirrer and a condensing device, putting the four-mouth bottle into a water bath kettle, stirring and heating to 135 ℃ under the protection of nitrogen, reacting for 2 hours, and cooling to room temperature to obtain modified epoxidized soybean oil, wherein the epoxy value of the epoxidized soybean oil is 4.0, and the molecular weight of the polyethylene glycol is 400;
step 2, sequentially adding white carbon black and fatty alcohol-polyoxyethylene ether into dimethyl silicone oil, uniformly mixing, adding the modified epoxidized soybean oil obtained in the step 1, stirring for 25 minutes, heating to 140 ℃, preserving heat for 4 hours, and cooling to obtain a mixed silicon paste;
and 3, adding sorbitol and sorbitan stearate into deionized water, heating to 70 ℃, stirring for 20 minutes to completely dissolve the sorbitol and sorbitan stearate, then adding sodium carboxymethylcellulose, uniformly mixing, adding the silicon paste, uniformly mixing, rapidly stirring for 60 minutes at 800r/min, shearing for 20 minutes at high speed at 9000r/min by using a high-shear emulsifying machine, and cooling to room temperature to obtain the compound defoaming agent.
Comparative example 1:
compared with the example 1, in the comparative example 1, the bicyclosulfulone in the active ingredient is removed, and the rest is completely the same, so that the weeding composition containing the quinclorac and the metamifop is obtained.
Comparative example 2:
compared with the example 2, in the comparative example 2, quinclorac in the active ingredient is removed, and the rest is completely the same, so that the weeding composition containing the bicyclosulfuron and the metamifop is obtained.
Comparative example 3:
compared with the example 3, in the comparative example 2, metamifop in the active ingredient is removed, and the rest is completely the same, so that the weeding composition containing the benzobicyclon and the quinclorac is obtained.
The herbicide compositions obtained in examples 1 to 3 and comparative examples 1 to 3 were applied to 6 test fields each having 4 fields, all of which had the same area and the same management method, and the test results were as shown in the following table.
As can be seen from the above tables, the herbicidal effect of the herbicidal composition containing benzobicyclon, quinclorac and metamifop is superior to that of the composition containing any two of benzobicyclon, quinclorac and metamifop.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (6)
1. The herbicide composition containing the benzobicyclon, the quinclorac and the metamifop is characterized in that the herbicide composition is a dispersible oil-suspension herbicide composition, and active ingredients in the herbicide composition comprise the benzobicyclon, the quinclorac and the metamifop.
2. The herbicide composition containing the benzobicyclon, the quinclorac and the metamifop as claimed in claim 1, wherein the oil-based suspension herbicide composition is prepared from the following raw materials, by weight, 75-180 parts of solvent oil, 10-25 parts of benzobicyclon, 1-30 parts of quinclorac, 1-55 parts of metamifop, 3-8 parts of calcium dodecyl benzene sulfonate, 1-2 parts of alkylphenol polyoxyethylene ether, 2-5 parts of organobentonite, 2-5 parts of a compound defoaming agent and 2-5 parts of propylene glycol;
the preparation method of the dispersible oil suspension herbicide composition comprises the following steps:
step A, uniformly mixing calcium dodecyl benzene sulfonate, alkylphenol ethoxylates, organic bentonite, a compound defoaming agent, propylene glycol and part of solvent oil in a stirrer, and transferring to a shearing kettle for shearing to obtain a sheared mixed material;
b, adding the cut mixed material obtained in the step A into a sand mill for sanding, adding the benzobicyclon, quinclorac and metamifop at the same time, and sanding until the particle size of the material is less than 2-3 microns to obtain a sanded mixed material;
and C, washing the shearing machine and the sand mill by using the rest part of the solvent oil, transferring the obtained washing liquid and the mixed material after sand milling to a shearing kettle, and performing secondary shearing and uniform shearing to obtain the dispersible oil suspending agent weeding composition.
3. The herbicide composition containing benzobicyclon, quinclorac and metamifop as claimed in claim 2, wherein the solvent oil is one or more of soybean oil, white oil, turpentine and methyl naphthalene higher fatty oil.
4. The herbicide composition containing the benzobicyclon, the quinclorac and the metamifop as claimed in claim 2, wherein the compound defoaming agent is prepared from the following raw materials, by weight, 10-60 parts of polyethylene glycol, 5-50 parts of epoxidized soybean oil, 0.2-0.5 part of concentrated sulfuric acid, 5-100 parts of simethicone, 1-3 parts of white carbon black, 0.5-1.5 parts of sorbitol, 0.5-1.5 parts of sorbitan stearate, 1-3 parts of sodium carboxymethylcellulose and 2-5 parts of fatty alcohol polyoxyethylene ether;
the preparation method of the compound defoaming agent comprises the following steps:
step 1, adding epoxidized soybean oil, polyethylene glycol and concentrated sulfuric acid into a four-mouth bottle with a stirrer and a condensing device, putting the four-mouth bottle into a water bath kettle, stirring and heating to 145 ℃ for 135 ℃ and adding ammonia under the protection of nitrogen, reacting for 2-4 hours, and cooling to room temperature to obtain modified epoxidized soybean oil;
step 2, sequentially adding the white carbon black and the fatty alcohol-polyoxyethylene ether into the dimethyl silicone oil, uniformly mixing, then adding the modified epoxidized soybean oil obtained in the step 1, stirring for 10-25 minutes, heating to 110-180 ℃, preserving heat for 3-6 hours, and cooling to mixed silicon paste;
and 3, adding sorbitol and sorbitan stearate into deionized water, heating to 60-90 ℃, stirring for 10-25 minutes to completely dissolve the sorbitol and sorbitan stearate, then adding sodium carboxymethylcellulose, uniformly mixing, adding the silicon paste, uniformly mixing, rapidly stirring for 60-80 minutes under the condition of 700 plus materials at 1000r/min, rapidly shearing for 20-40 minutes under the condition of 9000 plus materials at 10000r/min by using a high-shear emulsifying machine, and cooling to room temperature to obtain the compound defoaming agent.
5. The herbicidal composition comprising benzobicyclon, quinclorac and metamifop of claim 4, wherein said epoxidized soybean oil has an epoxy value of 4.0 to 4.5.
6. The herbicidal composition comprising benzobicyclon, quinclorac and metamifop as claimed in claim 4, wherein the molecular weight of said polyethylene glycol is 400-500.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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