CN115363027A - Pesticide ultra-low volume liquid and preparation method and application thereof - Google Patents
Pesticide ultra-low volume liquid and preparation method and application thereof Download PDFInfo
- Publication number
- CN115363027A CN115363027A CN202211115313.2A CN202211115313A CN115363027A CN 115363027 A CN115363027 A CN 115363027A CN 202211115313 A CN202211115313 A CN 202211115313A CN 115363027 A CN115363027 A CN 115363027A
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- China
- Prior art keywords
- ultra
- low volume
- pesticide
- liquid
- ethephon
- Prior art date
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- 239000000575 pesticide Substances 0.000 title claims abstract description 42
- 239000004560 ultra-low volume (ULV) liquid Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000005976 Ethephon Substances 0.000 claims abstract description 46
- UDPGUMQDCGORJQ-UHFFFAOYSA-N (2-chloroethyl)phosphonic acid Chemical compound OP(O)(=O)CCCl UDPGUMQDCGORJQ-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 36
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000006184 cosolvent Substances 0.000 claims abstract description 19
- 239000004094 surface-active agent Substances 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims abstract description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims abstract description 7
- 230000002528 anti-freeze Effects 0.000 claims abstract description 7
- 240000008042 Zea mays Species 0.000 claims description 43
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 43
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 40
- 235000005822 corn Nutrition 0.000 claims description 40
- 238000005507 spraying Methods 0.000 claims description 31
- PRPINYUDVPFIRX-UHFFFAOYSA-N 1-naphthaleneacetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CC=CC2=C1 PRPINYUDVPFIRX-UHFFFAOYSA-N 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 21
- -1 fatty acid ester Chemical class 0.000 claims description 20
- 238000009472 formulation Methods 0.000 claims description 16
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 16
- 239000008158 vegetable oil Substances 0.000 claims description 16
- 239000004480 active ingredient Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- RZXLPPRPEOUENN-UHFFFAOYSA-N Chlorfenson Chemical compound C1=CC(Cl)=CC=C1OS(=O)(=O)C1=CC=C(Cl)C=C1 RZXLPPRPEOUENN-UHFFFAOYSA-N 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 238000007710 freezing Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 3
- 239000004359 castor oil Substances 0.000 claims description 3
- 235000019438 castor oil Nutrition 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 3
- 239000003090 pesticide formulation Substances 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims 1
- 150000002334 glycols Chemical class 0.000 claims 1
- 239000012669 liquid formulation Substances 0.000 claims 1
- 238000001704 evaporation Methods 0.000 abstract description 26
- 230000008020 evaporation Effects 0.000 abstract description 24
- 239000003814 drug Substances 0.000 abstract description 22
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 239000007798 antifreeze agent Substances 0.000 abstract description 8
- 238000013329 compounding Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 239000013589 supplement Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 26
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- 230000000052 comparative effect Effects 0.000 description 15
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- 238000013112 stability test Methods 0.000 description 9
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- 238000001514 detection method Methods 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 229940079593 drug Drugs 0.000 description 6
- 230000002195 synergetic effect Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 150000001408 amides Chemical class 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000003981 vehicle Substances 0.000 description 4
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 235000009973 maize Nutrition 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 description 2
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 2
- WFSMVVDJSNMRAR-UHFFFAOYSA-N 2-[2-(2-ethoxyethoxy)ethoxy]ethanol Chemical compound CCOCCOCCOCCO WFSMVVDJSNMRAR-UHFFFAOYSA-N 0.000 description 2
- WAEVWDZKMBQDEJ-UHFFFAOYSA-N 2-[2-(2-methoxypropoxy)propoxy]propan-1-ol Chemical compound COC(C)COC(C)COC(C)CO WAEVWDZKMBQDEJ-UHFFFAOYSA-N 0.000 description 2
- 208000003643 Callosities Diseases 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241001057636 Dracaena deremensis Species 0.000 description 2
- LVGKNOAMLMIIKO-UHFFFAOYSA-N Elaidinsaeure-aethylester Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC LVGKNOAMLMIIKO-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 206010020649 Hyperkeratosis Diseases 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 description 2
- LVGKNOAMLMIIKO-QXMHVHEDSA-N ethyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC LVGKNOAMLMIIKO-QXMHVHEDSA-N 0.000 description 2
- 229940093471 ethyl oleate Drugs 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012812 general test Methods 0.000 description 2
- 239000007952 growth promoter Substances 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 description 2
- 229940073769 methyl oleate Drugs 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- HNXNKTMIVROLTK-UHFFFAOYSA-N n,n-dimethyldecanamide Chemical compound CCCCCCCCCC(=O)N(C)C HNXNKTMIVROLTK-UHFFFAOYSA-N 0.000 description 2
- MBHINSULENHCMF-UHFFFAOYSA-N n,n-dimethylpropanamide Chemical compound CCC(=O)N(C)C MBHINSULENHCMF-UHFFFAOYSA-N 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- 230000010152 pollination Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- VIBOGIYPPWLDTI-UHFFFAOYSA-N 2-naphthylacetic acid Chemical compound C1=CC=CC2=CC(CC(=O)O)=CC=C21 VIBOGIYPPWLDTI-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- IXVMHGVQKLDRKH-VRESXRICSA-N Brassinolide Natural products O=C1OC[C@@H]2[C@@H]3[C@@](C)([C@H]([C@@H]([C@@H](O)[C@H](O)[C@H](C(C)C)C)C)CC3)CC[C@@H]2[C@]2(C)[C@@H]1C[C@H](O)[C@H](O)C2 IXVMHGVQKLDRKH-VRESXRICSA-N 0.000 description 1
- OORIKNJWZHTXDC-UHFFFAOYSA-N CCCC(CC)C(CC)(C(=O)OCC)N Chemical compound CCCC(CC)C(CC)(C(=O)OCC)N OORIKNJWZHTXDC-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- NWBJYWHLCVSVIJ-UHFFFAOYSA-N N-benzyladenine Chemical compound N=1C=NC=2NC=NC=2C=1NCC1=CC=CC=C1 NWBJYWHLCVSVIJ-UHFFFAOYSA-N 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- IXVMHGVQKLDRKH-KNBKMWSGSA-N brassinolide Chemical compound C1OC(=O)[C@H]2C[C@H](O)[C@H](O)C[C@]2(C)[C@H]2CC[C@]3(C)[C@@H]([C@H](C)[C@@H](O)[C@H](O)[C@@H](C)C(C)C)CC[C@H]3[C@@H]21 IXVMHGVQKLDRKH-KNBKMWSGSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000361 pesticidal effect Effects 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
-
- 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
- A01N27/00—Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
-
- 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
-
- 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
- A01N25/30—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 characterised by the surfactants
-
- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/10—Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
-
- 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
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
-
- 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
- A01P21/00—Plant growth regulators
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Toxicology (AREA)
- Botany (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a pesticide ultra-low volume liquid and a preparation method and application thereof, wherein the pesticide ultra-low volume liquid comprises the following components in percentage by weight: 5-30% of ethephon, 0.1-1% of active component II, 4-20% of surfactant, 6-30% of cosolvent, 15% of antifreeze and the balance of alcohol ether solvent. Ethephon and active components are effective components, and the surfactant is added after compounding, so that the spray rupture length can be increased, the particle size is increased, the drift is reduced, the dynamic surface tension of liquid drops is reduced, the spreadability of the liquid drops on the liquid surface is increased, the rebound of the liquid drops on leaf surfaces is reduced, the cosolvent can promote the absorption of the effective components, the antifreeze agent can increase the system density and reduce the evaporation of liquid medicine, and all the components supplement each other, so that the prepared preparation can be effectively applied in ultra-low volume.
Description
Technical Field
The invention relates to the technical field of agriculture, in particular to an ultra-low volume liquid pesticide and a preparation method and application thereof.
Background
The corn is sensitive to ethephon, and ethephon is usually sprayed on 6-13 leaves (in the growing period from a small trumpet period to a large trumpet period) of the corn in production, so that the formation of aerial roots of the corn is promoted, the ear position of female ears is reduced, and the corn stalks are thick and strong, thereby achieving the purpose of lodging resistance and preventing yield reduction. The ethephon is applied to corn plants, so that the uniformity of plant groups can be improved, the planting density can be increased, and the yield can be increased.
However, the ethephon alone can reduce the leaf area above the maize ear, reduce the capacity of photosynthetic product accumulation, reduce the accumulation of assimilate, and is not beneficial to maize grain filling, especially under the drought and rainless conditions after the pollination, maize tassels are difficult to extract, tassels are shortened and reduced, tassels are reduced, and pollination is affected. According to the practical situation of cultivation management in agricultural production and related literature reports, the plant growth promoter is applied together with ethephon in the prior art to relieve the side effect of ethephon. The common plant growth promoter such as naphthylacetic acid, benzylaminopurine, diethyl aminoethyl hexanoate, brassinolide and the like is compounded with ethephon and applied to the corns together so as to relieve the side effect of the ethephon on the corns.
However, ethephon and its compound preparation are conventional pesticide formulations, which adopt high and medium volume spraying with large water mixing amount, weak evaporation resistance, weak leaf surface adhesion, are not suitable for direct application in flying defense, are not suitable for large-area spraying in water-deficient and drought environments, and simultaneously have low pesticide utilization rate due to weak evaporation resistance, poor drift resistance and poor crop absorption.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the pesticide ultra-low volume liquid which is high in stability and evaporation resistance, is suitable for being directly applied to flying defence, is particularly suitable for being used for corn crops, promotes the crop absorption and improves the pesticide utilization rate.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention firstly provides a pesticide ultra-low volume liquid, which comprises the following components in percentage by weight: 5-30% of ethephon, 0.1-1% of active component II, 4-20% of surfactant, 6-30% of cosolvent, 15% of antifreeze and the balance of alcohol ether solvent.
Preferably, the pesticide ultra-low volume liquid comprises the following components in percentage by weight: 15-30% of ethephon, 0.5% of active component II, 10-20% of surfactant, 20-30% of cosolvent, 15% of antifreeze and the balance of alcohol ether solvent.
Preferably, the active component II is naphthylacetic acid.
Preferably, the mass volume concentration ratio of the naphthylacetic acid to the ethephon is (5-20): (100-500).
More preferably, the mass volume concentration ratio of the naphthylacetic acid to the ethephon is (5-10): 300.
preferably, the surfactant is selected from one or more of polyoxyethylene sorbitan fatty acid ester, C12-18 fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, alcohol ether carboxylate, alcohol ether sulfonate and alcohol ester sulfonate.
Preferably, the cosolvent comprises alkylated vegetable oil and/or amide compounds.
More preferably, the alkylated vegetable oil comprises a methylated vegetable oil and/or an ethylated vegetable oil.
More preferably, the alkylated vegetable oil is methyl oleate and/or ethyl oleate.
More preferably, the amide compound comprises an aliphatic substituted amide RCONHR 'and/or an aliphatic substituted amide RCONR ", wherein R, R', R" are hydrogen or hydrocarbyl groups.
More preferably, the amide compound is selected from one or more of N, N-dimethyl decanamide, N-dimethyl acetamide and N, N-dimethyl propionamide.
More preferably, the cosolvent is an alkylated vegetable oil and an amide compound, and the mass ratio of the alkylated vegetable oil to the amide compound is 1.
Preferably, the antifreeze agent comprises a saturated diol (C) n H 2n+2 O 2 ) And/or saturated trihydric alcohols (C) n H 2n+2 O 3 )。
More preferably, the antifreeze agent is selected from one or more of ethylene glycol, propylene glycol and glycerol.
Preferably, the alcohol ether solvent has a flash point greater than 90 ℃ and a relative evaporation rate less than 1.
More preferably, the alcohol ether solvent is selected from one or more of triethylene glycol methyl ether, triethylene glycol ethyl ether, diethylene glycol butyl ether, tripropylene glycol methyl ether and dipropylene glycol butyl ether.
The invention also provides a preparation method of the pesticide ultra-low volume liquid, which comprises the following steps:
firstly, mixing a cosolvent and a solvent, then adding ethephon and an active ingredient II, stirring and dissolving completely, then adding a surfactant and an antifreeze agent, continuously stirring to completely dissolve and disperse the surfactant and the antifreeze agent, standing, and filtering to obtain the composition.
The invention also provides application of the pesticide ultra-low volume liquid in the process of preparing pesticides.
Preferably, the application is particularly applied to the ground of a corn planting area and large-area ultra-low-volume spray application of a small helicopter.
Preferably, the spraying concentration of the active ingredients of the pesticide ultra-low volume liquid is 105-520 mg/L, and the spraying amount of the liquid medicine is 0.5-1 kg/mu.
The invention has the beneficial effects that:
the ethephon and the active components in the pesticide ultra-low volume liquid are effective components, and the surfactant is added after compounding, so that the spray rupture length can be increased, the particle size is increased, the drift is reduced, the dynamic surface tension of liquid drops is reduced, the spreadability of the liquid drops on the liquid surface is increased, the rebound of the liquid drops on leaf surfaces is reduced, the cosolvent can promote the absorption of the effective components, the antifreeze agent can increase the system density and reduce the evaporation of the liquid drops, and the components supplement each other, so that the prepared preparation can be effectively applied in ultra-low volume.
Although the compounding of ethephon and naphthylacetic acid is researched at present, but the research on the ultra-low volume liquid is not carried out, when the mass volume concentration ratio of the naphthylacetic acid to the ethephon is (5-20): (100-500), the two active components have addition or synergistic action, and the ultra-low volume liquid prepared by the formula has good stability and evaporation resistance, and can be sprayed and applied by a small helicopter in a large-area ultra-low volume manner.
The pesticide ultra-low volume liquid is particularly suitable for being absorbed by corn crops, and solves the problem that the pesticide cannot be applied to the corn fields in the hilly lands with drought and difficult water taking.
Drawings
FIG. 1 is a test chart of the pesticide effect of the corn in the field.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the following embodiments.
At present, ethephon and compound preparations thereof are frequently applied by high-volume and medium-volume spraying, have large water adding amount, weak evaporation resistance and weak leaf surface adhesion capacity, are not suitable for being directly applied to flying guards and are not suitable for being sprayed in large areas in water-deficient and drought environments, and simultaneously have the problem of low pesticide utilization rate due to weak evaporation resistance, poor drift resistance and poor crop absorption. In view of the above, the present invention firstly provides a pesticide ultra-low volume liquid formulation, which comprises the following components by weight: 5-30% of ethephon, 0.1-1% of active component II, 4-20% of surfactant, 6-30% of cosolvent, 15% of antifreeze and the balance of alcohol ether solvent.
According to the pesticide ultra-low volume liquid, under the condition of the mixture ratio of the components, ethephon and active components are taken as effective components, and the surfactant is added after compounding, so that the spray rupture length can be increased, the particle size is increased, the drift is reduced, the dynamic surface tension of liquid drops is reduced, the spreadability of the liquid drops on the liquid surface is increased, the rebound of the liquid drops on leaf surfaces is reduced, the absorption of the effective components can be promoted by the cosolvent, the system density can be increased by the antifreeze, the evaporation of the liquid medicine is reduced, and the components supplement each other, so that the prepared preparation can be applied in ultra-low volume. Further, the pesticide ultra-low volume liquid comprises the following components in percentage by weight: 15-30% of ethephon, 0.5% of active component II, 10-20% of surfactant, 20-30% of cosolvent, 15% of antifreeze and the balance of alcohol ether solvent.
In some embodiments of the invention, the active ingredient ii is naphthaleneacetic acid. The inventor creatively discovers in the research process that although the compounding of ethephon and naphthylacetic acid is researched at present, the research on the ultra-low volume liquid is not carried out, the preparation of the ultra-low volume liquid needs to carefully consider the reasonable proportion among the components, the improper proportion causes the preparation to be volatile, the density to be small, the flash point to be low and not beneficial to the safety of crops, the performance of the obtained preparation does not meet the requirement and the ultra-low volume spraying cannot be carried out, and after long-time tests and effect tests on the components, the inventor discovers that the ultra-low volume liquid prepared by the formula has better stability and evaporation resistance and can be sprayed and applied in a large-area ultra-low volume spray by a small helicopter. Further, the mass volume concentration ratio of the naphthylacetic acid to the ethephon is (5-20): (100-500), wherein the two active components have addition or synergistic action; furthermore, the mass volume concentration ratio of the naphthylacetic acid to the ethephon is (5-10): 300, at which time the two active ingredients exhibit synergistic effects.
In the invention, the surfactant is selected from one or more of polyoxyethylene sorbitan fatty acid ester, C12-18 fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, alcohol ether carboxylate, alcohol ether sulfonate and alcohol ester sulfonate.
In the present invention, the co-solvent includes alkylated vegetable oils and/or amide compounds. The alkylated vegetable oil can form emulsion, wrap liquid drops, reduce evaporation, dissolve a leaf surface wax layer, promote crop absorption, increase the particle size of the liquid drops and reduce drift; the amide compound is safe and promotes penetration by utilizing the low-toxicity and high-penetration capacity of the amide compound. Further, the alkylated vegetable oil comprises a methylated vegetable oil and/or an ethylated vegetable oil; further, the alkylated vegetable oil is methyl oleate and/or ethyl oleate; further, the amide compound comprises an aliphatic substituted amide RCONHR 'and/or an aliphatic substituted amide RCONR ", wherein R, R', R" are hydrogen or a hydrocarbyl group; further, the amide compound is selected from one or more of N, N-dimethyl decanamide, N-dimethyl acetamide and N, N-dimethyl propionamide; further, the cosolvent is an alkylated vegetable oil and an amide compound, the mass ratio of the alkylated vegetable oil to the amide compound is 1.
In the present invention, the anti-freezing agent includes saturated diol (C) n H 2n+2 O 2 ) And/or saturated trihydric alcohols (C) n H 2n+2 O 3 ) (ii) a Further, the antifreeze agent is selected from one or more of ethylene glycol, propylene glycol and glycerol. The density of the system is increased, so that the pressure on the surface of the liquid surface is reduced, the liquid medicine is evaporated, and meanwhile, the safety is high, the use safety, the crop safety and the environmental safety are ensured.
In the invention, the flash point of the alcohol ether solvent is more than 90 ℃, the relative evaporation rate is less than 1, and further, the solvent is selected from one or more of triethylene glycol methyl ether, triethylene glycol ethyl ether, diethylene glycol butyl ether, tripropylene glycol methyl ether and dipropylene glycol butyl ether.
The invention also provides a preparation method of the pesticide ultra-low volume liquid, which comprises the following steps:
firstly, mixing a cosolvent and a solvent, then adding ethephon and an active ingredient II, stirring and dissolving completely, then adding a surfactant and an anti-freezing agent, and continuing stirring to completely dissolve and disperse the surfactant and the anti-freezing agent; standing and filtering to obtain the product.
The invention also provides application of the pesticide ultra-low volume liquid in the process of preparing pesticides. With the continuous increase of the planting density of corn, the corresponding water and fertilizer input is increased, under the condition that the population density of the corn is increased, the plant and spike positions of the corn are increased, the plant height of more than 10 leaves reaches more than 1 meter in the period of applying the chemical control agent (6-13 leaves), the chemical control agent spraying position is a corn bell mouth, the planting density is increased plus the plant height, and the manual spraying difficulty of the conventional preparation formulation is higher. The application of the invention is specifically to large-area ultra-low-volume spray application of the ground and small helicopters in corn planting areas. The ultra-low volume liquid pesticide is particularly suitable for application to corn crops, and solves the problem that the corn fields in hilly lands with difficult manual pesticide spraying, drought and difficult water taking can not be used.
The preferred method of applying the ultra low volume liquid formulation of the present invention is an ultra low volume spray followed by a low volume spray. The dosage of the invention is 0.5 to 10 grams per mu, wherein 0.5 to 1 gram per mu is the dosage of the ultra-low volume spraying; 5-10 g/mu is the low-volume spraying dosage.
The spraying concentration of the effective components of the ultra-low volume liquid pesticide is 105-520 mg/L, the spraying amount of the liquid pesticide is 0.5-1 kg/mu, the active components have addition or synergism, and the pesticide can exert the maximum effect at the concentration and the spraying amount of the liquid pesticide; furthermore, the spraying concentration of the active ingredients is 305-310 mg/L, and the active ingredients have synergistic effect.
The naphthylacetic acid comprises two structures of alpha-naphthylacetic acid and beta-naphthylacetic acid, and the content of the alpha-naphthylacetic acid is usually calculated when the content of the active ingredients is measured.
The above is a detailed description of the present invention, and the following is an example of the present invention.
Example 1 assay of Activity measurement of Naphthylacetic acid-ethephon Complex formulation
According to the following bioassay test, the synergistic effect of the naphthylacetic acid + ethephon composition on the growth of the corn is explored, and the reasonable proportion of the composition is determined. The plant is dwarfed by shortening the internode length through ethephon, the lodging resistance is improved, the naphthylacetic acid is utilized to promote cell division and growth, the absorption of the plant to nutrient substances in soil is improved, the stress resistance of corn is enhanced, the healthy growth of the plant is promoted, the adverse effect of ethephon on the growth of the plant and a root system is compensated, and further the yield is improved.
1. Test conditions
1.1 test agent: 75% ethephon raw drug and 95% naphthylacetic acid raw drug;
1.2 test materials: corn (Zhengdan 958), potted seedling in greenhouse, and planting water and fertilizer according to conventional corn;
2. drug concentration design
The treatment dosage of the naphthylacetic acid for test reagent is 5, 10, 20, 50mg/L, the treatment dosage of ethephon is 100, 200, 300, 500mg/L, the dosage of the naphthylacetic acid and ethephon compound is 50+100, 50+200, 50+300, 50+500, 20+100, 20+200, 20+300, 20+500, 10+100, 10+200, 10+300, 10+500, 5+100, 5+200, 5+300, 5+500, and a blank control without adding medicine is set for repeating for 4 times of treatment.
3. Test method
Selecting potted corn seedlings which grow regularly and consistently, carrying out leaf surface spraying treatment on a crop sprayer according to the treatment dosage set above, placing the corn treated by the medicament in a fume hood for airing, and transferring to a greenhouse for culturing after 24 hours; the culture temperature is as follows: day 25 ℃, night 16 ℃, culture time: and 4, 45 days.
4. Investigation and calculation method
The plant height (aerial part) was measured after 45 days of greenhouse culture, the growth rate of the plant height was calculated, and the fresh weight of the whole plant (aerial part + root) of corn was measured at the same time. The fresh weight growth rate of hundreds of plants is calculated, and the synergistic effect of the two medicaments after mixing is evaluated according to the Gowing method.
5. Test results
5.1 Effect on plant height
The test result shows that: when ethephon and compound preparation thereof are used for carrying out foliage spray treatment, the plant height of corn seedlings can be inhibited to a certain extent, the treatment dosage of 5-20mg/L of naphthylacetic acid has no obvious influence on the plant height of corn, and the treatment dosage of 50mg/L of naphthylacetic acid has slight inhibition effect on the plant height of corn.
5.2 Effect on fresh weight of plants
The test result shows that: the ethephon leaf surface spraying can inhibit the fresh weight (namely the biomass yield) of the corn seedlings, and the fresh weight is more seriously inhibited when the using amount is higher; the fresh weight of the corn can be improved to different degrees by the naphthylacetic acid within a certain concentration range; the ethephon and the naphthylacetic acid are compounded, and the use concentration and the mixture ratio thereof are (5-20): (100-500) shows addition or synergy, especially the synergy of 5+300mg/L and 10+300mg/L is obvious.
Examples 2 to 6 ultra-low volume liquid formulations
Examples 2 to 6 are ultra-low volume liquids compounded by ethephon and naphthylacetic acid, and the formula of each component is shown in table 1:
TABLE 1 formulation examples of naphthylacetic acid-ethephon ultra-low volume liquid formulation
Examples 2-6 preparation of ultra low volume liquids was as follows:
(1) Firstly, adding a cosolvent and a solvent, then adding ethephon and naphthylacetic acid, and stirring to dissolve completely;
(2) Adding surfactant and antifreeze agent, and stirring to dissolve and disperse completely;
(3) Standing and filtering, and filtering out impurities by using a filter screen to prevent the impurities from blocking the spray head;
(4) And (5) carrying out quality detection according to related standards, and packaging finished products after the quality is qualified.
Comparative examples 1 to 5 soluble agent
Comparative examples 1 to 5 are ethephon and naphthylacetic acid solubles (conventional manual spray formulations), and the formulations of the components are shown in table 2:
TABLE 2 formulation examples of Naphthylacetic acid ethephon solubles
Examples 6 to 10 the method for preparing the soluble solution was:
(1) Firstly, adding a solvent and a cosolvent, then adding ethephon and naphthylacetic acid, and stirring to dissolve completely;
(2) Standing and filtering, and filtering out impurities by using a filter screen to prevent the impurities from blocking the spray head;
(3) And (5) carrying out quality detection according to related standards, and packaging finished products after the quality is qualified.
Effect example 1 quality index and stability test
Testing the quality index and stability of the ultra-low volume liquid:
with reference to the "Standard of ultra-Low volume pesticide liquid products (HG/T2467.20-2003) and the" general test for stability of Normal temperature storage of pesticides "(NY/T1427-2016), examples 3 and 4 were subjected to the quality index detection and stability test, and the results are shown in tables 3 to 4:
TABLE 3 quality index and stability test results of the preparation in example 3
TABLE 4 quality index and stability test results of the preparation of example 4
According to the analysis of the detection data of each quality index in tables 3 and 4, each quality index in examples 3 and 4 and each technical index in a 2-year normal-temperature storage stability test are qualified, particularly, the surface tension is less than 30mN/m, and the application effect of the formula in the later period is better ensured.
Testing the quality index and stability of the soluble agent:
referring to 'Standard writing Specification for soluble solution products of pesticides' (HG/T2467.8-2003) and 'general test rules for Normal temperature storage stability of pesticides' (NY/T1427-2016), comparative examples 2 and 3 were subjected to relevant quality index detection and stability test, and the detection results are shown in tables 5 to 6:
TABLE 5 quality index and stability test result of the preparation of comparative example 2
TABLE 6 quality index and stability test result of the preparation of comparative example 3
According to the analysis of the detection data of the quality indexes in tables 5 and 6, in the quality indexes in comparative example 2 and comparative example 3 and the 2-year normal-temperature storage stability test, the 2-year-old storage qualitative is unqualified (the 2-year-old storage decomposition rate of alpha-naphthylacetic acid exceeds 5%), the surface tension value is larger (more than 50 mN/m), and the surface tension value is larger along with the longer storage time, which indicates that the formula can not achieve a good application effect theoretically.
Effect example 2 test of evaporation Rate resistance (Filter paper hanging method)
The experimental method comprises the following steps: taking 0.8-1.0ml of the liquid medicine by using a syringe, and uniformly dripping the liquid medicine on flat-laid qualitative filter paper with a copper wire ring and a diameter of 11cm, wherein the qualitative filter paper is recorded as m 0 The filtrate is completely wetted and weighed immediately, thus obtaining m 1 Suspending in a constant temperature cabinet at 30 +/-1 deg.C, taking out after 20min, weighing, and recording as m 2 And weighing the mass of the copper wire ring in advance, and calculating the volatilization rate of the liquid medicine.
And (3) data analysis: the evaluation is carried out according to the calculated volatilization rate of the liquid medicine, the volatilization rate is strong when the volatilization rate is more than 30 percent, medium when the volatilization rate is 10-30 percent, and weak when the volatilization rate is less than 10 percent. Namely, the evaporation resistance rate is weak when being less than 70%, medium when being 70-90%, and strong when being more than 90%, 9 groups of parallel samples are set, and the average value is taken as the evaporation resistance rate.
Volatilization rate =1- (m) 2 -m 0 )/(m 1 -m 0 ) 100% anti-evaporation rate = 1-evaporation rate
The evaporation resistance rate test was performed for examples 3 and 4 and comparative examples 2 and 3, and the results are shown in tables 7 to 10:
TABLE 7 test results of evaporation Rate resistance of example 3
TABLE 8 test results of evaporation Rate resistance of example 4
TABLE 9 test results of evaporation Rate resistance test of comparative example 2
TABLE 10 test results of evaporation Rate resistance of comparative example 3
As can be seen from tables 7 and 8, the ultra-low volume liquid formulations obtained by the components of the invention have low volatilization rate, the average evaporation resistant rate can reach 95.01 percent, and the evaporation resistant capability is strong, while the soluble formulation prepared by the comparative example has relatively general evaporation resistant capability which is far lower than that of the ultra-low volume liquid formulation of the invention.
Effect example 3 drug efficacy test
Subject: corn (corn)
The experimental method comprises the following steps: selecting corn fields with flat terrain, no obvious plant diseases and insect pests, consistent growth period and growth vigor and equivalent fertilizer efficiency, dividing each corn field into 5 points for sampling, wherein each point for sampling is not less than 25 m 2 ；
The dosage of the ultra-low volume spraying of the embodiment 3 is 0.5 g/mu, the dosage of the low volume spraying is 5 g/mu, and the dosage of the high volume spraying is 50 g/mu;
the dosage for ultra-low volume spraying of example 4 is 1 g/mu, the dosage for low volume spraying is 10 g/mu, and the dosage for high volume spraying is 100 g/mu;
ultra-low volume spraying (0.5 kg of liquid medicine/mu) by an unmanned aerial vehicle is adopted, and the treatment is recorded as treatment 1;
spraying the liquid medicine (5 kg/mu) at a low capacity by an unmanned aerial vehicle, and recording the liquid medicine to be treated 2;
spraying by an unmanned aerial vehicle at a high capacity (50 kg of liquid medicine per mu), and recording the spraying amount to be 3;
the blank group is denoted as treatment 4.
Comparative example 2 the dosage of the manual spraying is 50 g/mu, and the liquid medicine amount is 50 kg/mu;
comparative example 3 the amount of the drug applied by manual spraying is 100/mu, and the amount of the drug solution is 50 kg/mu.
Measurement: picking at a mature harvesting period, and measuring the height of a corn plant, the height of a spike, the thousand seed weight of the corn, the full tip rate and the internode length; full tip rate = ear growth length/total fruit length 100%.
The test data of each test group are shown in tables 11-13:
TABLE 11 results of the test for efficacy of corn in example 3
TABLE 12 results of the test for efficacy of corn in example 4
TABLE 13 test results of corn efficacy in comparative example 2 and comparative example 3
The test data in tables 11-13 show that the ultra low volume liquid formulation examples 2 and 3 have higher post-harvest indices for corn than the high volume airplane spray and the manual spray of conventional solubles in the unmanned aerial vehicle ultra low volume spray mode.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. The ultra-low volume pesticide liquid is characterized by comprising the following components in percentage by weight: 5-30% of ethephon, 0.1-1% of active component II, 4-20% of surfactant, 6-30% of cosolvent, 15% of antifreeze and the balance of alcohol ether solvent.
2. The ultra-low volume pesticide solution as set forth in claim 1, wherein the active ingredient II is naphthylacetic acid.
3. The pesticide ultra-low volume liquid as claimed in claim 2, wherein the mass volume concentration ratio of the naphthylacetic acid to the ethephon is (5-20): (100-500).
4. The ultra-low volume pesticide liquid formulation as claimed in any one of claims 1, wherein the surfactant is selected from one or more of polyoxyethylene sorbitan fatty acid ester, C12-18 fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, alcohol ether carboxylate, alcohol ether sulfonate and alcohol ester sulfonate.
5. The ultra-low volume pesticide solution as set forth in any one of claim 1, wherein said co-solvent comprises an alkylated vegetable oil and/or an amide compound.
6. The ultra-low volume pesticide formulation as claimed in any one of claims 1, wherein the anti-freezing agent comprises saturated glycol (C) n H 2n+2 O 2 ) And/or saturated trihydric alcohols (C) n H 2n+2 O 3 )。
7. A method for preparing an ultra-low volume liquid formulation of any one of claims 1 to 6, comprising the steps of:
mixing the cosolvent and the solvent, adding ethephon and the active ingredient II, stirring to dissolve completely, adding the surfactant and the anti-freezing agent, stirring continuously to dissolve and disperse completely, standing, and filtering to obtain the final product.
8. Use of the ultra-low volume liquid formulation of any one of claims 1 to 6 in the preparation of a pesticide.
9. The use according to claim 8, in particular for large area ultra low volume spray application to the ground in corn planting areas and small helicopters.
10. The use as claimed in claim 9, wherein the spraying concentration of the effective component of the ultra-low volume pesticide liquid is 105-520 mg/L, and the spraying amount of the pesticide liquid is 0.5-1 kg/mu.
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