CN114651820B - Songfuzamide emulsifiable concentrate herbicide and preparation method thereof - Google Patents
Songfuzamide emulsifiable concentrate herbicide and preparation method thereof Download PDFInfo
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- CN114651820B CN114651820B CN202210435701.2A CN202210435701A CN114651820B CN 114651820 B CN114651820 B CN 114651820B CN 202210435701 A CN202210435701 A CN 202210435701A CN 114651820 B CN114651820 B CN 114651820B
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- maquindox
- herbicide
- emulsifiable concentrate
- fomesafen
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- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 81
- 239000004009 herbicide Substances 0.000 title claims abstract description 73
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 239000004495 emulsifiable concentrate Substances 0.000 title claims abstract description 31
- 229940124530 sulfonamide Drugs 0.000 claims abstract description 19
- BGZZWXTVIYUUEY-UHFFFAOYSA-N fomesafen Chemical compound C1=C([N+]([O-])=O)C(C(=O)NS(=O)(=O)C)=CC(OC=2C(=CC(=CC=2)C(F)(F)F)Cl)=C1 BGZZWXTVIYUUEY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000005614 Quizalofop-P-ethyl Substances 0.000 claims abstract description 16
- OSUHJPCHFDQAIT-GFCCVEGCSA-N quizalofop-P-ethyl Chemical group C1=CC(O[C@H](C)C(=O)OCC)=CC=C1OC1=CN=C(C=C(Cl)C=C2)C2=N1 OSUHJPCHFDQAIT-GFCCVEGCSA-N 0.000 claims abstract description 16
- 239000005499 Clomazone Substances 0.000 claims abstract description 14
- KIEDNEWSYUYDSN-UHFFFAOYSA-N clomazone Chemical compound O=C1C(C)(C)CON1CC1=CC=CC=C1Cl KIEDNEWSYUYDSN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000000080 wetting agent Substances 0.000 claims abstract description 12
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 229920000881 Modified starch Polymers 0.000 claims description 31
- 239000004368 Modified starch Substances 0.000 claims description 31
- 235000019426 modified starch Nutrition 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000003381 stabilizer Substances 0.000 claims description 24
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- -1 alkyl glycoside Chemical class 0.000 claims description 15
- 229920001661 Chitosan Polymers 0.000 claims description 14
- 229920001285 xanthan gum Polymers 0.000 claims description 14
- 239000000230 xanthan gum Substances 0.000 claims description 14
- 235000010493 xanthan gum Nutrition 0.000 claims description 14
- 229940082509 xanthan gum Drugs 0.000 claims description 14
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 13
- 229930182470 glycoside Natural products 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 12
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 229920002472 Starch Polymers 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 claims description 6
- 230000001804 emulsifying effect Effects 0.000 claims description 6
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 claims description 6
- 229940073769 methyl oleate Drugs 0.000 claims description 6
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 6
- 229960004889 salicylic acid Drugs 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- OOCMUZJPDXYRFD-UHFFFAOYSA-L calcium;2-dodecylbenzenesulfonate Chemical group [Ca+2].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O.CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O OOCMUZJPDXYRFD-UHFFFAOYSA-L 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000000643 oven drying Methods 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 abstract description 42
- 238000009333 weeding Methods 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 20
- 206010059866 Drug resistance Diseases 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 21
- 239000000839 emulsion Substances 0.000 description 7
- 239000002689 soil Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 230000008719 thickening Effects 0.000 description 5
- 241000234653 Cyperus Species 0.000 description 4
- 241000192043 Echinochloa Species 0.000 description 4
- 241001553700 Euphorbia lathyris Species 0.000 description 4
- 241000202758 Scirpus Species 0.000 description 4
- 235000005010 Scirpus paludosus Nutrition 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 235000008216 herbs Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 238000009331 sowing Methods 0.000 description 3
- 230000003313 weakening effect Effects 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 229930185597 Euphorbia lathyris Natural products 0.000 description 2
- 241001463155 Planiculus Species 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000000361 pesticidal effect Effects 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- ZRPAUEVGEGEPFQ-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]pyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2 ZRPAUEVGEGEPFQ-UHFFFAOYSA-N 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 241000464908 Elliptica Species 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 239000005592 Penoxsulam Substances 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 241000589634 Xanthomonas Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- MFSWTRQUCLNFOM-UHFFFAOYSA-N methyl 2-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenoxy)propanoate Chemical group C1=CC(OC(C)C(=O)OC)=CC=C1OC1=NC=C(C(F)(F)F)C=C1Cl MFSWTRQUCLNFOM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/60—1,4-Diazines; Hydrogenated 1,4-diazines
-
- 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
-
- 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
- A01N25/08—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 solids as carriers or diluents
- A01N25/10—Macromolecular 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
- 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
- A01N41/04—Sulfonic acids; Derivatives thereof
- A01N41/06—Sulfonic acid amides
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The application relates to the technical field of biology, in particular to a maquindox-sulfanilamide emulsifiable concentrate herbicide and a preparation method thereof. The composite material comprises the following raw materials in parts by weight: 1-3% of quizalofop-p-ethyl, 8-11% of fomesafen, 20-25% of clomazone, 4-8% of an emulsifying agent, 2-5% of a dispersing wetting agent, 30-60% of a solvent and 5-10% of other auxiliary agents. Under the combined action of quizalofop-p-ethyl, fomesafen and clomazone, the maquindox-fomesafen emulsifiable concentrate herbicide has the advantages of good weeding effect, wide weeding range and capability of reducing the possibility of drug resistance of weeds, and furthermore, the stability and wettability of the maquindox-fomesafen emulsifiable concentrate herbicide are improved by adding an emulsifying agent, a dispersing wetting agent and a solvent, so that the weeding effect of the maquindox-fomesafen emulsifiable concentrate herbicide is enhanced.
Description
Technical Field
The application relates to the technical field of biology, in particular to a maquindox-sulfanilamide emulsifiable concentrate herbicide and a preparation method thereof.
Background
However, long-term maquindox-sulfanilamide emulsifiable concentrate herbicide is a chemical herbicide composed of various active ingredients, chemical weeding is the most economical and effective means in farmland weed control, generally, the herbicide is used independently, the types of weeds are quite many, the types of herbicide used independently are quite few, and the herbicide resistance is easy to generate, so that the plurality of herbicides are used in a compound way, but when the plurality of herbicides are used in a compound way, uneven dispersion, easy precipitation and the like are easy to occur, and the weeding effect of the herbicide is reduced.
Disclosure of Invention
In order to solve the technical problems, the application provides a maquindox-sulfanilamide emulsifiable concentrate herbicide.
In a first aspect, the application provides a maquindox-sulfanilamide emulsifiable concentrate herbicide, which adopts the following technical scheme:
the maquindox-sulfanilamide emulsifiable concentrate herbicide consists of the following raw materials in percentage by weight:
quizalofop-p-ethyl: 1-3%
Fomesafen: 8-11%
Clomazone: 20-25%
Emulsifying agent: 4-8%
Dispersing wetting agent: 2-5%
Solvent 30-60%
5-10% of other auxiliary agents.
The maquindox-sulfanilamide emulsifiable concentrate herbicide obtained by the scheme has the advantages of good emulsion stability, good dispersibility, good wettability and the like, is used for weeding, can exert better pesticide effect, improves weeding effect, and can reduce the possibility of drug resistance of weeds. Wherein quizalofop-p-ethyl is a phenoxy fatty acid herbicide and is also a selective systemic conduction type stem and leaf treating agent. The quizalofop-p-ethyl has high selectivity between grassy weeds and dicotyledonous crops, so that the stems and leaves of the herbs can quickly absorb herbicide in a short time to improve the weeding effect, and the fomesafen is a high-efficiency and selective herbicide, and the action principle is mainly that after the leaf parts of the herbs are absorbed, the photosynthesis of the herbs can be destroyed, and meanwhile, the fomesafen can also keep better activity in soil, so that the fomesafen can be widely applied to weeding of broadleaf weeds and the like. Clomazone is an organic heterocyclic selective pre-emergence herbicide, so that clomazone is commonly used for weeding in crop fields such as soybeans, peanuts, corn and the like. Under the combined action of quizalofop-p-ethyl, fomesafen and clomazone, the clomazone flumesafen emulsifiable concentrate herbicide has the advantages of good weeding effect, wide weeding general range and capability of reducing the possibility of drug resistance of weeds.
By adding the emulsifier, the droplets in the maquindox oil herbicide can be prevented from coagulating mutually, so that the emulsion of the maquindox oil herbicide is stable. The dispersing wetting agent plays roles in dispersing and wetting, so that raw materials of the maquindox-sulfanilamide missible oil herbicide are uniformly dispersed, and meanwhile, the maquindox-sulfanilamide missible oil herbicide has a wetting effect, and can wet weeds when used for weeding, so that the weeds are fully contacted with the herbicide, and the weeding effect is improved. In general, since the leaf or stem of the weed contains fine fluff, when the herbicide contacts the weed, the herbicide is not easily hung on the weed due to the water-repellent effect of the fluff, thereby reducing the utilization rate of the herbicide, and therefore, the dispersing wetting agent can avoid the possibility of occurrence of this situation. The solvent has the function of dilution, is convenient for dissolving the powdery quizalofop-p-ethyl and the crystal fomesafen, improves the dispersibility of raw materials of the maquindox-sodium emulsifiable concentrate herbicide, and is convenient for forming the maquindox-sodium emulsifiable concentrate herbicide with better stability.
Preferably, the emulsifier is calcium dodecyl benzene sulfonate.
The calcium dodecyl benzene sulfonate has good emulsifying, wetting and dispersing properties, so that the maquindox-sulfanilamide emulsifiable concentrate herbicide has good emulsion stability, dispersibility and wettability, and can improve the weeding effect when being used for weeding.
Preferably, the dispersing wetting agent is styrylphenol polyoxyethylene ether.
The styrylphenol polyoxyethylene ether is a nonionic surfactant, has good wettability and dispersibility, and can further improve the dispersibility and wettability of the maquindox emulsifiable concentrate herbicide, so as to improve the weeding effect of the maquindox emulsifiable concentrate herbicide.
Preferably, the solvent consists of the following raw materials in percentage by weight:
methyl oleate: 10 to 30 percent
Dimethyl sulfoxide 15-25%
0-25% of dimethylbenzene.
Methyl oleate is a colorless to pale yellow oily liquid, is flammable, insoluble in water, and is miscible with organic solvents such as ethanol, diethyl ether and the like. Meanwhile, the aqueous dispersion is also an unsaturated higher fatty acid ester, an important chemical raw material, is widely used for preparing surfactants, leather additives, textile auxiliaries and the like, is also used as an insecticide auxiliary and the like, is used as a solvent of the maquindox and fomesafen, improves the solubility of the maquindox and the fomesafen, ensures that a raw material system of the maquindox is uniformly dispersed, and the dimethylbenzene is colorless and transparent liquid, so that the maquindox can be diluted.
Preferably, the other auxiliary agent is an adhesion stabilizer.
The adhesion stabilizer has good stability and viscosity, can enable the maquindox-sulfanilamide missible oil herbicide to adhere to weeds or the ground surface, reduces the weakening of the drug effect when being washed by rain, can be biodegraded, can be absorbed by crops after being degraded, and improves the utilization value of the maquindox-sulfanilamide missible oil herbicide.
Preferably, the adhesion stabilizer consists of xanthan gum, alkyl glycoside, modified starch and chitosan.
The alkyl glycoside has good solubility, is easy to biodegrade, and has good thickening capability; xanthan gum, also known as xanthan gum, xanthomonas polysaccharide, is a single-spore polysaccharide produced by fermentation of pseudomonas, and has excellent thickening property, suspension property, emulsifying property and water solubility; the modified starch has better water solubility and adsorptivity, and has certain adhesiveness after dissolution; chitosan (CS) has good biocompatibility, adhesion, degradability and bacteriostasis; the adhesion stabilizer obtained by the raw materials has better thickening property, emulsifying property and adhesion, so that after the maquindox oil herbicide is used for weeding, the maquindox oil herbicide is easy to adhere to leaves or stems, and the possibility of weakening the efficacy of the maquindox oil herbicide when the maquindox oil herbicide is subjected to rain wash is reduced.
Preferably, the weight ratio of the xanthan gum to the alkyl glycoside to the modified starch to the chitosan is 1:3-5:7-12:4-6.
The adhesion stabilizer obtained by the dosage ratio has better thickening, emulsion stability, adhesion and degradability, so that the maquindox emulsifiable concentrate herbicide can stably adhere to weeds, and the weeding effect is improved.
Preferably, the modified starch is prepared by the steps of:
step 1: weighing 5-10 parts by weight of citric acid and 20-30 parts by weight of starch, dissolving in water, heating to 55-65 ℃, and reacting for 15-18 hours to obtain a mixture A;
step 2: according to the weight portions, 8-15 portions of salicylic acid are weighed and dissolved in water, and are dripped into the mixture A obtained in the step 1, heated to 70-80 ℃, reacted for 4-8 hours, precipitated by absolute ethyl alcohol, filtered, dried, crushed and screened by a 20-30-mesh sieve, thus obtaining the modified starch.
The preparation method has the advantages of simple operation and high production efficiency, the obtained modified starch is easier to be dissolved in water and has better adsorption effect, and the starch is modified by the citric acid and the salicylic acid, so that the obtained modified starch has large molecular weight and good adsorptivity, and furthermore, the maquindoxofluorosulfamide emulsifiable herbicide is adsorbed in soil, and when the maquindoxofluorosulfamide emulsifiable herbicide falls in the soil, the maquindoxofluorosulfamide emulsifiable herbicide can be adsorbed in the soil, thereby avoiding quick loss of pesticide effect and improving weeding effect.
Preferably, the adhesion stabilizer is prepared by the steps of: the weight percentage ratio is 1:3-5:7-12:4-6, dissolving xanthan gum, alkyl glycoside, modified starch and chitosan in water, stirring for 15-30min, precipitating with absolute ethanol, filtering, oven drying, pulverizing, and sieving with 50-100 mesh sieve to obtain modified starch.
The preparation method has the advantages of simple operation and high production efficiency, and the obtained adhesion stabilizer has the advantages of adhesion, good emulsion stability and good adsorptivity, and meanwhile, the raw material system of the adhesion stabilizer is uniformly dispersed.
In a second aspect, the application provides a preparation method of a maquindox-sulfanilamide emulsifiable concentrate herbicide, which adopts the following technical scheme:
the preparation method of the maquindox emulsifiable concentrate herbicide comprises the steps of weighing methyl oleate, dimethyl sulfoxide, dimethylbenzene, an emulsifying agent, a dispersing wetting agent, quizalofop-p-ethyl, fomesafen, clomazone and other auxiliary agents according to weight percentage, stirring, and emulsifying for 40 minutes to obtain the maquindox emulsifiable concentrate herbicide.
The preparation method has the advantages of simple operation and high production efficiency, and the obtained maquindox-sulfanilamide missible oil herbicide has the advantages of uniform mixing of a raw material system, good wettability, good emulsion stability, certain adhesiveness and adsorptivity, and further can bring the efficacy of the Gao Songkui maquindox-sulfanilamide missible oil herbicide into play to a good effect.
In summary, the application has the following beneficial effects:
1. under the combined action of quizalofop-p-ethyl, fomesafen and clomazone, the maquindox-fomesafen emulsifiable concentrate herbicide has the advantages of good weeding effect, wide weeding range and capability of reducing the possibility of drug resistance of weeds, and furthermore, the stability and wettability of the maquindox-fomesafen emulsifiable concentrate herbicide are improved by adding an emulsifying agent, a dispersing wetting agent and a solvent, so that the weeding effect of the maquindox-fomesafen emulsifiable concentrate herbicide is enhanced.
2. The adhesion stabilizer obtained by mixing the alkyl glycoside, the xanthan gum, the modified starch and the chitosan has better thickening property, emulsifying property and adhesion, so that after the maquindox herbicide is used for weeding, the maquindox herbicide is easily adhered to leaves or stems, and the possibility of weakening the efficacy of the maquindox herbicide when the maquindox herbicide is subjected to rain wash is reduced.
Detailed Description
The present application will be described in further detail with reference to the following preparations and examples.
Styrylphenol polyoxyethylene ether, manufacturer: the model of Jiangsu province sea-safe petrochemical plant: 600P.
Preparation example of modified starch
Preparation example 1
A modified starch prepared by the steps of:
step 1: weighing 5Kg of citric acid and 20Kg of starch, dissolving in water, heating to 55 ℃, and reacting for 15 hours to obtain a mixture A;
step 2: 8Kg of salicylic acid is weighed and dissolved in water, and is dripped into the mixture A obtained in the step 1, the mixture A is heated to 70 ℃ to react for 4 hours, absolute ethyl alcohol is used for precipitation, filtration is carried out, the mixture is put into a 50 ℃ oven for drying, and is crushed by a crusher and is sieved by a 20-mesh sieve, thus obtaining the modified starch.
Preparation example 2
A modified starch prepared by the steps of:
step 1: 7.5Kg of citric acid and 25Kg of starch are weighed and dissolved in water, heated to 60 ℃ and reacted for 17 hours to obtain a mixture A;
step 2: 10Kg of salicylic acid is weighed and dissolved in water, and is dripped into the mixture A obtained in the step 1, heated to 75 ℃, reacted for 6 hours, precipitated by absolute ethyl alcohol, filtered, put into a 50 ℃ oven for drying, crushed by a crusher and sieved by a 30-mesh sieve, and modified starch is obtained.
Preparation example 3
A modified starch prepared by the steps of:
step 1: weighing 10Kg of citric acid and 30Kg of starch, dissolving in water, heating to 65 ℃, and reacting for 118 hours to obtain a mixture A;
step 2: 15Kg of salicylic acid is weighed and dissolved in water, and is dripped into the mixture A obtained in the step 1, heated to 80 ℃, reacted for 8 hours, precipitated by absolute ethyl alcohol, filtered, put into a 50 ℃ oven for drying, crushed by a crusher and sieved by a 30-mesh sieve, and modified starch is obtained.
Preparation example of adhesion stabilizer
Preparation example 4
An adhesion stabilizer prepared by the following method: 1Kg of xanthan gum, 3Kg of alkyl glycoside, 7Kg of modified starch obtained in preparation example 1 and 4Kg of chitosan are weighed and dissolved in water, stirred for 15min, distilled, dried, crushed and sieved for 50-100 meshes to obtain modified starch.
Preparation example 5
An adhesion stabilizer prepared by the following method: 1Kg of xanthan gum, 4Kg of alkyl glycoside, 10Kg of modified starch obtained in preparation example 2 and 5Kg of chitosan are weighed and dissolved in water, and the mixture is stirred for 25 minutes, distilled, dried, crushed and sieved by a 100-mesh sieve to obtain modified starch.
Preparation example 6
An adhesion stabilizer prepared by the following method: 1Kg of xanthan gum, 5Kg of alkyl glycoside, 12Kg of modified starch obtained in preparation example 3 and 6Kg of chitosan are weighed and dissolved in water, stirred for 30min, distilled, dried, crushed and sieved by a 50-mesh sieve to obtain modified starch.
Preparation example 7
Preparation 7 differs from preparation 5 in that: unmodified starch was used.
Preparation of comparative example
Preparation of comparative example 1
Preparation comparative example 1 differs from preparation example 5 in that the xanthan gum is replaced by an alkyl glycoside in equal amount.
Preparation of comparative example 2
Preparation example 2 differs from preparation example 5 in that the xanthan gum, alkyl glycoside, chitosan are replaced with modified starch in equal amounts.
Preparation of comparative example 3
The preparation of comparative example 3 differs from that of preparation 5 in that: the modified starch was replaced with chitosan in equal amounts.
Examples
Example 1
A maquindox-sulfanilamide emulsifiable concentrate herbicide comprising the steps of: weighing 20Kg of methyl oleate, putting into a stirring and mixing kettle, sequentially adding 20Kg of dimethyl sulfoxide, 21Kg of dimethylbenzene, 6Kg of emulsifier, 4Kg of dispersing wetting agent, 1Kg of quizalofop-p-ethyl, 8Kg of fomesafen, 20Kg of clomazone and 7Kg of adhesion stabilizer, and stirring for 40 to obtain the maquindox-sodium emulsifiable concentrate herbicide.
Examples 2 to 7
Examples 2-7 differ from example 1 in that: the raw materials are used in different amounts; specifically as shown in table 2;
TABLE 1 raw materials (Kg) for examples 1-7
Examples 8 to 13
Example 8-1 differs from example 1 in that: the sources of adhesion stabilizers vary, as shown in table 3;
TABLE 2 sources of adhesion stabilizers and amounts of raw materials for examples 8-13
Comparative example
Comparative example 1
Comparative example 1 differs from example 1 in that: the clomazone is replaced by quizalofop-p-ethyl in an equivalent manner.
Comparative example 2
Comparative example 2 is different from example 1 in that: equal amounts of clomazone and quizalofop-p-ethyl are replaced with fomesafen.
Comparative example 3
Comparative example 3 is different from example 1 in that: equal amounts of quizalofop-p-ethyl are replaced by haloxyfop-methyl.
Comparative example 4
Comparative example 4 differs from example 1 in that: the adhesion stabilizer was replaced with xylene in equal amounts.
Performance test
The following performance tests were conducted on examples 1 to 13 and comparative examples 1 to 5, and are specifically shown in tables 3 and 4.
Detection method/test method
1. Stability of
The emulsion stability of the pesticide is measured according to the national standard GB/T1603-2001; observing whether oil slick (paste), oil deposition and precipitation are generated, and if no oil slick is qualified, firstly, the oil slick is unqualified.
2. Weeding efficiency field weed effect test.
Weeds occurring in the field: barnyard grass, special-shaped nutgrass, scirpus planiculus, glossoides elliptica, moleplant seed and the like.
The test method comprises the following steps:
1) The soil treatment comprises the steps of sowing 100 seeds (20 seeds of barnyard grass, special-shaped nutgrass, scirpus planiculus, glossopus arvensis and euphorbia lathyris) and uniformly spraying the surface of the soil by adopting a manual sprayer and 45 kg/mu of water mixed with herbicide before the germination of weeds; setting a blank control group, and spraying clear water without spraying pesticide; the number of sprouted plants of weeds after seven days and the number of sprouted plants of weeds (number of seedlings containing weeds) after twenty days were recorded, respectively;
2) Sowing 100 seeds (wherein, barnyard grass, special-shaped nutgrass, scirpus, glossodes canadensis and moleplant seeds are 20 seeds each), when weeds are in a 3-4 leaf period, adopting a manual sprayer, adding 30 kg/mu of water into herbicide to uniformly spray the stems and leaves of the weeds, and respectively recording the number of the weeds (which are not dead) after three days and the number of the weeds (which are not dead) after twenty days, wherein the regrown weeds are the weeds which are not dead and the new weeds are regrown after the plants die, and the weeding efficiency = the number of the plants to be sown-the number of the plants/the number of the plants to be sown is 100%;
3) And (3) water leaching treatment: sowing 100 seeds (wherein, 20 seeds of barnyard grass, special-shaped nutgrass, scirpus, glossodes canadensis and euphorbia lathyris) respectively, spraying herbicide (adding 30 kg/mu of water) by using a manual sprayer when weeds are in a 3-4 leaf period, spraying the herbicide for 20min, and then spraying clear water until the sprayed weeds are totally wetted, wherein the number of the unhooked weeds is recorded after three days, and the weeding efficiency=the number of plants to be sown-the number of plants/100%;
the specific experimental data in 1), 2) and 3) are shown in tables 3 and 4;
TABLE 3 data for the implementation of examples 1-7 and comparative examples 1-4
As can be seen from the combination of example 1 and comparative examples 1 to 3 and the combination of table 3, the number of weeds in example 1 is smaller than that in comparative examples 1 to 3, and the herbicidal efficiency of comparative examples 1 to 3 is inferior to that of example 1, indicating that the weeding effect of the obtained maquindox-penoxsulam herbicide is inferior by replacing one or more of the active ingredients (quizalofop-p-ethyl, fomesafen) or adding other active ingredients (halofop-butyl, which is a herbicide).
The comparative example 4, in which no adhesion stabilizer was added, showed lower herbicidal efficiency than example 1, indicating that the addition of adhesion stabilizer further improved herbicidal efficiency and was able to adhere to weeds, reducing the possibility of reduced herbicidal efficiency after water forests.
TABLE 4 Experimental data for examples 8-13
Combining tables 3 and 4, the herbicidal efficiency of example 8 and the herbicidal efficiency of example 1 were low, demonstrating that the adhesion stabilizer obtained using the modified starch was used in the maquindox herbicide, and was able to improve the herbicidal effect of the maquindox herbicide.
As can be seen from the combination of examples 9 to 11 and example 1 and the combination of tables 3 and 4, the herbicidal efficiency of the water shower treatment and the herbicidal efficiency of the stem and leaf treatment in examples 9 to 11 are lower than those in example 1, indicating that the herbicidal efficiency was poor when one, two or three of xanthan gum, alkyl glycoside, modified starch and chitosan were added.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (3)
1. A maquindox-sulfanilamide emulsifiable concentrate herbicide which is characterized in that: the material consists of the following raw materials in percentage by weight:
quizalofop-p-ethyl: 1-3%
Fomesafen: 8-11%
Clomazone: 20-25%
Emulsifying agent: 4-8%
Dispersing wetting agent: 2-5%
Solvent 30-60%
5-10% of other auxiliary agents;
the other auxiliary agents are adhesion stabilizers, and the adhesion stabilizers consist of xanthan gum, alkyl glycoside, modified starch and chitosan with the dosage ratio of 1:3-5:7-12:4-6;
the emulsifier is calcium dodecyl benzene sulfonate;
the dispersing wetting agent is styrylphenol polyoxyethylene ether;
the solvent consists of the following raw materials in percentage by weight:
methyl oleate: 10 to 30 percent
Dimethyl sulfoxide 15-25%
4-25% of dimethylbenzene;
the modified starch is prepared by the following steps:
step 1: weighing 5-10 parts by weight of citric acid and 20-30 parts by weight of starch, dissolving in water, heating to 55-65 ℃, and reacting for 15-18 hours to obtain a mixture A;
step 2: according to the weight portions, 8-15 portions of salicylic acid are weighed and dissolved in water, and are dripped into the mixture A obtained in the step 1, heated to 70-80 ℃, reacted for 4-8 hours, precipitated by absolute ethyl alcohol, filtered, dried, crushed and screened by a 20-30-mesh sieve, thus obtaining the modified starch.
2. A maquindox-sulfanilamide emulsifiable concentrate herbicide as set forth in claim 1, characterized in that: the adhesion stabilizer is prepared by the following steps: the weight ratio of the components is 1:3-5:7-12:4-6, dissolving xanthan gum, alkyl glycoside, modified starch and chitosan in water, stirring for 15-30min, precipitating with absolute ethanol, filtering, oven drying, pulverizing, and sieving with 50-100 mesh sieve to obtain adhesion stabilizer.
3. A process for the preparation of a maquindox emulsifiable concentrate herbicide as set forth in claim 1 or 2 comprising the steps of: weighing methyl oleate, dimethyl sulfoxide, dimethylbenzene, an emulsifying agent, a dispersing wetting agent, quizalofop-p-ethyl, fomesafen, clomazone and other auxiliary agents according to weight percentage, stirring, and emulsifying for 40 minutes to obtain the maquindox-sulfanilamide emulsifiable concentrate herbicide.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470170A (en) * | 2003-06-14 | 2004-01-28 | 大连松辽化工公司 | Herbicide composition |
| WO2021037204A1 (en) * | 2019-08-28 | 2021-03-04 | 沈阳农业大学 | Early post-emergent herbicidal active composition and herbicide |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470170A (en) * | 2003-06-14 | 2004-01-28 | 大连松辽化工公司 | Herbicide composition |
| WO2021037204A1 (en) * | 2019-08-28 | 2021-03-04 | 沈阳农业大学 | Early post-emergent herbicidal active composition and herbicide |
Non-Patent Citations (2)
| Title |
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| "探讨烷基糖苷在农药草甘膦中的应用研究";徐国梅 等;《化学世界》(第6期);389-361 * |
| 化学工业出版社组织编写.《中国化工产品大全》.化学工业出版社,2005,128. * |
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