CN114208821A - Suspending agent additive suitable for glufosinate-ammonium compounded flumioxazin - Google Patents
Suspending agent additive suitable for glufosinate-ammonium compounded flumioxazin Download PDFInfo
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- CN114208821A CN114208821A CN202111642771.7A CN202111642771A CN114208821A CN 114208821 A CN114208821 A CN 114208821A CN 202111642771 A CN202111642771 A CN 202111642771A CN 114208821 A CN114208821 A CN 114208821A
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- Prior art keywords
- glufosinate
- flumioxazin
- suspending agent
- compounded
- ammonium
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- IAJOBQBIJHVGMQ-UHFFFAOYSA-N 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid Chemical compound CP(O)(=O)CCC(N)C(O)=O IAJOBQBIJHVGMQ-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000000375 suspending agent Substances 0.000 title claims abstract description 73
- FOUWCSDKDDHKQP-UHFFFAOYSA-N flumioxazin Chemical compound FC1=CC=2OCC(=O)N(CC#C)C=2C=C1N(C1=O)C(=O)C2=C1CCCC2 FOUWCSDKDDHKQP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000000654 additive Substances 0.000 title claims abstract description 18
- 230000000996 additive effect Effects 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 20
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 20
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 11
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 10
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010452 phosphate Substances 0.000 claims abstract description 10
- 229920005646 polycarboxylate Polymers 0.000 claims abstract description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims description 28
- 239000000725 suspension Substances 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims description 17
- 238000013329 compounding Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000002518 antifoaming agent Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 8
- 239000005561 Glufosinate Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000002671 adjuvant Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 239000004546 suspension concentrate Substances 0.000 claims 1
- 238000001556 precipitation Methods 0.000 abstract description 6
- -1 styryl phenol Chemical compound 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000004220 aggregation Methods 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract description 2
- 238000009736 wetting Methods 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 13
- 239000000047 product Substances 0.000 description 13
- 239000004009 herbicide Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000002363 herbicidal effect Effects 0.000 description 8
- 239000000575 pesticide Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 229920001285 xanthan gum Polymers 0.000 description 6
- 229940082509 xanthan gum Drugs 0.000 description 6
- 235000010493 xanthan gum Nutrition 0.000 description 6
- 239000000230 xanthan gum Substances 0.000 description 6
- 239000004480 active ingredient Substances 0.000 description 5
- 230000002528 anti-freeze Effects 0.000 description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000000857 drug effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000009333 weeding Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000004563 wettable powder Substances 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000001602 Digitaria X umfolozi Nutrition 0.000 description 1
- 235000017898 Digitaria ciliaris Nutrition 0.000 description 1
- 235000005476 Digitaria cruciata Nutrition 0.000 description 1
- 235000006830 Digitaria didactyla Nutrition 0.000 description 1
- 235000005804 Digitaria eriantha ssp. eriantha Nutrition 0.000 description 1
- 235000010823 Digitaria sanguinalis Nutrition 0.000 description 1
- 240000003173 Drymaria cordata Species 0.000 description 1
- 244000058871 Echinochloa crus-galli Species 0.000 description 1
- 244000025670 Eleusine indica Species 0.000 description 1
- 235000014716 Eleusine indica Nutrition 0.000 description 1
- 239000005562 Glyphosate Substances 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 229940087098 Oxidase inhibitor Drugs 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 244000234609 Portulaca oleracea Species 0.000 description 1
- 235000001855 Portulaca oleracea Nutrition 0.000 description 1
- 108020001991 Protoporphyrinogen Oxidase Proteins 0.000 description 1
- 102000005135 Protoporphyrinogen oxidase Human genes 0.000 description 1
- 241000219094 Vitaceae Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 102000005396 glutamine synthetase Human genes 0.000 description 1
- 108020002326 glutamine synthetase Proteins 0.000 description 1
- XDDAORKBJWWYJS-UHFFFAOYSA-N glyphosate Chemical compound OC(=O)CNCP(O)(O)=O XDDAORKBJWWYJS-UHFFFAOYSA-N 0.000 description 1
- 229940097068 glyphosate Drugs 0.000 description 1
- 235000021021 grapes Nutrition 0.000 description 1
- 230000009036 growth inhibition Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000037353 metabolic pathway Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012053 oil suspension Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- FIKAKWIAUPDISJ-UHFFFAOYSA-L paraquat dichloride Chemical compound [Cl-].[Cl-].C1=C[N+](C)=CC=C1C1=CC=[N+](C)C=C1 FIKAKWIAUPDISJ-UHFFFAOYSA-L 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009261 transgenic effect Effects 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
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
- 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
- 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
- A01N43/84—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 six-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,4
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a suspending agent additive suitable for glufosinate-ammonium compounded flumioxazin, which comprises the following components in percentage by mass: 1-30% of styryl phenol polyoxyethylene ether phosphate, 1-40% of polycarboxylate dispersant, 1-20% of dodecyl dimethyl betaine, 1-10% of isomeric tridecanol polyoxyethylene ether and water, wherein the water is supplemented to 100%. The assistant has excellent wetting property and dispersibility, small using amount, low cost and stable dispersibility. The risks of particle aggregation, particle size increase and the like can be reduced, the stability of the suspending agent is greatly improved, and the problems of layering, precipitation and paste formation are avoided.
Description
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a high-efficiency auxiliary agent of a glufosinate-flumioxazin compound suspending agent.
Background
Glufosinate belongs to phosphonic acid herbicides and can inhibit glutamine synthetase in plant nitrogen metabolic pathways, so that metabolism of plants is interfered, and the plants die. Glufosinate is an excellent non-selective and broad-spectrum contact herbicide, and with the rising of glyphosate resistance and the limited use of paraquat, the glufosinate sales are rising continuously, and the glufosinate becomes a herbicide for the second major transgenic crop in the world.
Flumioxazin is a cyclic imide herbicide. Flumioxazin is a protoporphyrinogen oxidase inhibitor, is a contact-type selective herbicide and is used for preventing and killing broad-leaved weeds in soybean, cotton, grapes and other various crop fields. The weeds wither, whiten to necrotize and wither within 24-48 h. Is safe for soybean and peanut. The flumioxazin and glufosinate-ammonium are compounded for use, so that the weed control spectrum is expanded, the weed control speed is increased, the low-temperature effect is improved, and the lasting period is prolonged.
Resistant weeds continue to increase as the population of herbicide resistant weeds evolves as a result of the inevitable long-term application of a single mode of action herbicide. In order to slow down the development of glufosinate-ammonium resistant weeds, improve the weeding speed of glufosinate-ammonium and expand the weeding spectrum, the combination of glufosinate-ammonium and other herbicides becomes a future development trend.
At present, common glufosinate-ammonium and flumioxazin in the market are compounded by mainly wettable powder and oil suspending agent. The glufosinate-flumioxazin is compounded to prepare wettable powder, the energy consumption is high in the processing process, dust is easy to drift to cause cross contamination, medicinal powder is easy to fly when spraying liquid is prepared to cause harm to operators, the residual medicinal powder in a packaging bag pollutes the environment, and the oil suspension prepared by compounding the glufosinate-flumioxazin the packaging bag needs a large amount of organic solvents, so that the production cost is high, and the environmental pollution is great. The glufosinate-flumioxazin compound aqueous suspension agent has low production cost, takes water as a dispersion medium, and is safe to operators and environment.
The herbicide composition has obvious synergistic effect, improves the persistence of each component single agent, obviously delays the generation of weed resistance, reduces the times of repeated use of pesticides, reduces the use amount of the pesticides and reduces the agricultural cost.
Disclosure of Invention
The invention aims to develop a high-efficiency auxiliary agent of the glufosinate-flumioxazin compound suspending agent by screening and compounding the dispersing agent and the wetting agent, and the auxiliary agent has low cost and good preparation stability.
The purpose of the invention is realized by the following modes:
the suspending agent additive suitable for compounding glufosinate-ammonium with flumioxazin is characterized by comprising the following components in percentage by mass:
preferably, the auxiliary agent consists of the following components in percentage by mass:
further preferably, the auxiliary agent consists of the following components in percentage by mass:
the auxiliary agent is suitable for a compound suspending agent with the glufosinate content of 10-40% and the flumioxazin content of 2-10%. The auxiliary agent is preferably suitable for a compound suspending agent with 10-30% of glufosinate-ammonium and 2-6% of flumioxazin.
The dosage of the auxiliary agent in the compound suspending agent is 4-10%, preferably 5%.
The preparation method of the suspending agent additive suitable for compounding glufosinate-ammonium with flumioxazin comprises the following steps: mixing styrylphenol polyoxyethylene ether phosphate, polycarboxylate dispersant, dodecyl dimethyl betaine and isomeric tridecanol polyoxyethylene ether, supplementing water, and stirring uniformly.
The auxiliary agent is applied to preparation of a compound suspending agent of glufosinate-flumioxazin.
The preparation method of the glufosinate-ammonium compounded flumioxazin suspending agent comprises the following steps: uniformly mixing glufosinate-ammonium, flumioxazin, an auxiliary agent and water in proportion, adding an antifreezing agent and a suspending agent, supplementing water, mixing, adding an antifoaming agent accounting for 0.1% of the mass of the preparation, and uniformly dispersing the materials to prepare a suspension premix; controlling the temperature below 40 ℃, and sanding the obtained suspension premix to form a suspending agent product of glufosinate-ammonium compounded flumioxazin; the suspended particle size is less than or equal to 5 microns, and the suspension rate is more than or equal to 90 percent.
The invention utilizes the styryl phenol polyoxyethylene ether phosphate ester which can be strongly adsorbed on the surface of active substance particles, and provides electrostatic repulsion and steric hindrance effects; the polycarboxylate dispersant is a high molecular surfactant with a comb-shaped structure, and has the advantages of crystallization resistance, crystal growth inhibition, creaming inhibition and electrolyte resistance; the dodecyl dimethyl betaine and the isomeric tridecanol polyoxyethylene ether are combined, so that the surfaces of the glufosinate-ammonium and flumioxazin original drug particles are wetted and dispersed, and the drug effect is obviously improved. The auxiliary agent is applied to the preparation of the glufosinate-flumioxazin compound suspending agent, so that the whole preparation system is not easy to separate water, is not easy to creame and is not easy to undergo austenite curing, and the drug effect can be remarkably improved.
Unless otherwise specified, the percentage in the formula of the invention is mass percentage.
Compared with the prior art, the invention has the beneficial effects that:
1. the auxiliary agent prepared by the invention is suitable for a suspending agent of glufosinate-ammonium compounded flumioxazin, has excellent and efficient surface activities such as wetting and dispersing, is small in dosage, and is more stable in dispersing and suspending performance; the addition of the auxiliary agent can also obviously inhibit the aggregation of pesticide suspended particles, resist crystallization, inhibit crystallization growth, inhibit creaming and resist electrolyte, and can effectively avoid the problems of layering, precipitation, creaming and the like of the suspending agent.
2. The auxiliary agent is suitable for compounding the glufosinate-ammonium with the flumioxazin suspending agent, so that the suspending agent has good suspending performance, is not easy to generate precipitate after long-term storage, and has good temperature resistance.
3. The suspending agent prepared by the formula is low in cost and suitable for industrial production.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the invention thereto.
Example 1
A suspending agent assistant suitable for glufosinate-ammonium compounded flumioxazin is prepared from the following substances in percentage by mass:
in this embodiment, the preparation method of the suspending agent additive suitable for compounding glufosinate-ammonium with flumioxazin comprises the following steps:
and mixing styrylphenol polyoxyethylene ether phosphate, polycarboxylate dispersant, dodecyl dimethyl betaine and isomeric tridecanol polyoxyethylene ether in sequence, supplementing water, and uniformly stirring to obtain a suspending agent auxiliary product which is viscous in appearance and is suitable for compounding glufosinate-ammonium with flumioxazin.
In the embodiment, the application steps of the auxiliary agent in the suspending agent product of glufosinate-ammonium compounded flumioxazin are as follows:
1) mixing 10% of glufosinate-ammonium, 2% of flumioxazin, 5% of the auxiliary agent in the embodiment 1, 4% of antifreeze glycol, 0.2% of xanthan gum serving as a suspending agent and the balance of water, adding 0.1% of defoaming agent, and uniformly dispersing the materials to prepare suspension premix for later use;
2) and (3) controlling the temperature to be below 40 ℃, and continuously sanding the suspension premix obtained in the step (1) for 2 times by using a sand mill to obtain the flumioxazin suspending agent product.
The suspending agent of 10% glufosinate-ammonium and 2% flumioxazin prepared in the embodiment is a viscous white homogeneous suspending liquid, the suspension rate of active ingredients is more than 90%, the particle size (D90) is less than 5um, and the suspending agent is free from layering, precipitation and paste formation after being respectively stored at cold (0 +/-1 ℃) and hot (54 +/-2 ℃) for 14 days, and is qualified in stability.
Example 2
A suspending agent assistant suitable for glufosinate-ammonium compounded flumioxazin is prepared from the following substances in percentage by mass:
in this embodiment, the preparation method of the suspending agent additive suitable for compounding glufosinate-ammonium with flumioxazin comprises the following steps:
and mixing styrylphenol polyoxyethylene ether phosphate, polycarboxylate dispersant, dodecyl dimethyl betaine and isomeric tridecanol polyoxyethylene ether in sequence, supplementing water, and uniformly stirring to obtain a suspending agent auxiliary product which is viscous in appearance and is suitable for compounding glufosinate-ammonium with flumioxazin.
In the embodiment, the application steps of the auxiliary agent in the glufosinate-compounded flumioxazin suspending agent product are as follows:
1) mixing 20% of glufosinate-ammonium, 2% of flumioxazin, 5% of the auxiliary agent in the embodiment 2, 4% of antifreeze glycol, 0.2% of xanthan gum serving as a suspending agent and the balance of water, adding 0.1% of defoaming agent, and uniformly dispersing the materials to prepare suspension premix for later use;
2) and (3) controlling the temperature to be below 40 ℃, and continuously sanding the suspension premix obtained in the step (1) for 2 times by using a sand mill to obtain a suspension agent product of 10% of glufosinate-ammonium and 2% of flumioxazin.
The suspending agent of 20% glufosinate-ammonium and 2% flumioxazin prepared by the embodiment is a viscous brown homogeneous suspending liquid, the suspension rate of active ingredients is more than 90%, the particle size (D90) is less than 5um, and the suspending agent is free from layering, precipitation and paste formation after being respectively stored at cold (0 +/-1 ℃) and hot (54 +/-2 ℃) for 14 days, and is qualified in stability.
Example 3
A suspending agent assistant suitable for glufosinate-ammonium compounded flumioxazin is prepared from the following substances in percentage by mass:
in this embodiment, the preparation method of the suspending agent additive suitable for compounding glufosinate-ammonium with flumioxazin comprises the following steps:
and (3) supplementing styrylphenol polyoxyethylene ether phosphate, polycarboxylate dispersant, dodecyl dimethyl betaine, isomeric tridecanol polyoxyethylene ether and water in sequence, and uniformly stirring to obtain a suspending agent auxiliary agent finished product which is viscous in appearance and is suitable for compounding glufosinate-ammonium with flumioxazin.
In the embodiment, the application steps of the auxiliary agent in the glufosinate-compounded flumioxazin suspending agent product are as follows:
1) mixing 30% of glufosinate-ammonium, 6% of flumioxazin, 5% of the auxiliary agent in the embodiment 3, 4% of antifreeze glycol, 0.2% of xanthan gum serving as a suspending agent and the balance of water, adding 0.1% of defoaming agent, and uniformly dispersing the materials to prepare suspension premix for later use;
2) and (3) controlling the temperature to be below 40 ℃, and continuously sanding the suspension premix obtained in the step (1) for 2 times by using a sand mill to obtain a 30% glufosinate-ammonium + 6% flumioxazin suspension product.
The suspending agent of 30% glufosinate-ammonium and 6% flumioxazin prepared by the embodiment is a viscous brown homogeneous suspending liquid, the suspension rate of the effective components is more than 90%, the particle size (D90) is less than 5um, and the suspending agent is free of layering, precipitation and paste formation after being respectively stored at cold (0 +/-1 ℃) and hot (54 +/-2 ℃) for 14 days, and is qualified in stability.
Example 4
A suspending agent assistant suitable for glufosinate-ammonium compounded flumioxazin is prepared from the following substances in percentage by mass:
in this embodiment, the preparation method of the suspending agent additive suitable for compounding glufosinate-ammonium with flumioxazin comprises the following steps:
and (3) supplementing styrylphenol polyoxyethylene ether phosphate, polycarboxylate dispersant, dodecyl dimethyl betaine, isomeric tridecanol polyoxyethylene ether and water in sequence, and uniformly stirring to obtain a suspending agent auxiliary agent finished product which is viscous in appearance and is suitable for compounding glufosinate-ammonium with flumioxazin.
In the embodiment, the application steps of the auxiliary agent in the glufosinate-compounded flumioxazin suspending agent product are as follows:
1) mixing 18% of glufosinate-ammonium, 2% of flumioxazin, 5% of the auxiliary agent in the embodiment 4, 4% of antifreezing agent ethylene glycol, 0.2% of the suspending agent xanthan gum and the balance of water, adding 0.1% of the defoaming agent, uniformly dispersing the materials to prepare a suspension premix for later use;
2) and (3) controlling the temperature to be below 40 ℃, and continuously sanding the suspension premix obtained in the step (1) for 2 times by using a sand mill to obtain a suspension agent product of 18% of glufosinate-ammonium and 2% of flumioxazin.
The suspension of 18% glufosinate-ammonium and 2% flumioxazin prepared in the embodiment is a viscous brown homogeneous suspension, the suspension rate of active ingredients is more than 90%, the particle size (D90) is less than 5um, and the suspension does not have layering, precipitation and paste formation after being respectively stored at cold (0 +/-1 ℃) and hot (54 +/-2 ℃) for 14 days, and is qualified in stability.
Comparative example 1
As in example 1, in the preparation of a suspension of 10% glufosinate-ammonium + 2% flumioxazin, the adjuvant formulation was: 40% of styryl phenol polyoxyethylene ether phosphate, 10% of polycarboxylate dispersant, 20% of dodecyl dimethyl betaine, 5% of isomeric tridecanol polyoxyethylene ether and 25% of water.
Mixing 10% of glufosinate-ammonium, 2% of flumioxazin, 5% of the auxiliary agent, 4% of antifreeze glycol, 0.2% of suspending agent xanthan gum and the balance of water, adding 0.1% of defoaming agent, uniformly dispersing the materials, and dispersing and sanding by a sand mill. 10% glufosinate-ammonium + 2% flumioxazin suspension is prepared and stored hot (54 + -2 ℃) for 7 days for layering.
Comparative example 2
As in example 2, in the preparation of a suspension of 20% glufosinate-ammonium + 2% flumioxazin, the formulation of the adjuvant was: 20% of styryl phenol polyoxyethylene ether phosphate, 20% of polycarboxylate dispersant, 20% of dodecyl dimethyl betaine, 15% of isomeric tridecanol polyoxyethylene ether and 25% of water.
Mixing 20% of glufosinate-ammonium, 2% of flumioxazin, 5% of the auxiliary agent, 4% of antifreeze glycol, 0.2% of suspending agent xanthan gum and the balance of water, adding 0.1% of defoaming agent, uniformly dispersing the materials, and dispersing and sanding by a sand mill. 20% of glufosinate-ammonium and 2% of flumioxazin suspension are prepared and stored in a hot environment (54 +/-2 ℃) for 7 days to be layered.
Test of field drug effect
Reagent to be tested: 10% glufosinate-ammonium + 2% flumioxazin suspending agent in example 1, 18% glufosinate-ammonium + 2% flumioxazin suspending agent in example 4, and 200g/L glufosinate-ammonium water agent in market
Control target: barnyard grass, crab grass, chickweed, purslane and the like
And (3) experimental design: the test was set to 4 treatments, calculated as active ingredients, respectively a: 10% glufosinate-ammonium and 2% flumioxazin suspending agent 900g/hm2(active ingredient), B: suspension agent of 18% glufosinate-ammonium and 2% flumioxazin 900g/hm2(effective ingredient), C: 900g/hm of 200g/L glufosinate-ammonium aqua2(effective ingredient), D: and (5) clear water control. Each treatment was repeated 3 times, each cell area 30m2Random block permutation.
The application and investigation method comprises the following steps: the back type automatic sprayer sprays evenly by adding 30L of water per mu (667 square meters). The test was performed at 9 months 2021. The species and the number of plants of the weeds were investigated at 10d and 25d after the application of the herbicide, and the control effect of the plants was calculated. Sampling is carried out at 5 points in each cell during investigation, and the area of a sample is 0.5m2。
Test results of control effect (number of weed plants in control area-number of weed plants in treatment area)/number of weed plants in control area x 100%
TABLE 1 weed population control effect on uncultivated land by different treatments
According to the data results obtained by field efficacy tests, the 10% glufosinate-2% flumioxazin suspending agent prepared by the method is remarkably superior to 200g/L glufosinate-ammonium aqueous agent in control effect in 25 days and remarkably reduces the cost compared with the existing 200g/L glufosinate-ammonium aqueous agent sold in the market. The control effect of the suspension agent of 18 percent of glufosinate-ammonium and 2 percent of flumioxazin after being applied for 10 days and 25 days is obviously superior to that of the existing 200g/L glufosinate-ammonium water agent sold in the market. In the experiment, compared with the existing 200g/L glufosinate-ammonium aqua sold on the market, the glufosinate-ammonium compound flumioxazin suspending agent prepared by using the auxiliary agent disclosed by the invention has the advantages of better weeding effect and longer duration, can reduce the using times of pesticides, reduce the using amount of the pesticides, reduce the agricultural cost and is safer to the environment.
Claims (9)
1. The suspending agent additive suitable for compounding glufosinate-ammonium with flumioxazin is characterized by comprising the following components in percentage by mass:
2. the suspending agent additive suitable for glufosinate-ammonium compounded flumioxazin according to claim 1, which is characterized by comprising the following components in percentage by mass:
3. the suspending agent additive suitable for glufosinate-ammonium compounded flumioxazin according to claim 1, which is characterized by comprising the following components in percentage by mass:
4. the suspending agent additive suitable for the glufosinate-compounded flumioxazin as claimed in any one of claims 1 to 3, which is characterized in that the additive is suitable for a compounded suspending agent with the glufosinate content of 10-40% and the flumioxazin content of 2-10%.
5. The suspending agent additive suitable for the glufosinate-compounded flumioxazin as claimed in claim 4, which is characterized in that the additive is suitable for the compounded suspending agent with the glufosinate content of 10-30% and the flumioxazin content of 2-6%.
6. The suspending agent additive of glufosinate-ammonium compounded flumioxazin as claimed in any one of claims 1-3, characterized in that the amount of the additive in the compounded suspending agent is 4% -10%.
7. A process for the preparation of a suspending agent adjuvant suitable for glufosinate-compounded flumioxazin as claimed in any of claims 1 to 3, characterised in that the process comprises the steps of: mixing styrylphenol polyoxyethylene ether phosphate, polycarboxylate dispersant, dodecyl dimethyl betaine and isomeric tridecanol polyoxyethylene ether, supplementing water, and stirring uniformly.
8. The use of the adjuvant according to any of claims 1 to 3 for the preparation of a glufosinate-compounded flumioxazin-compounded suspension concentrate.
9. The use according to claim 8, characterized in that the preparation of the suspending agent of glufosinate-ammonium compounded flumioxazin comprises the following steps: uniformly mixing glufosinate-ammonium, flumioxazin, an auxiliary agent and water in proportion, adding an antifreezing agent and a suspending agent, supplementing water, mixing, adding an antifoaming agent accounting for 0.1% of the preparation, and uniformly dispersing the materials to prepare a suspension premix; controlling the temperature below 40 ℃, and sanding the obtained suspension premix to form a suspending agent product of glufosinate-ammonium compounded flumioxazin; the suspended particle size is less than or equal to 5 microns, and the suspension rate is more than or equal to 90 percent.
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| CN115868489A (en) * | 2022-12-29 | 2023-03-31 | 南京科翼新材料有限公司 | Synergistic additive of refined glufosinate soluble granules and preparation method thereof |
| CN115968869A (en) * | 2022-12-10 | 2023-04-18 | 江苏莱科化学有限公司 | Pesticide suspending agent containing water-soluble components and preparation method thereof |
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| CN115968869B (en) * | 2022-12-10 | 2023-12-05 | 江苏莱科化学有限公司 | Pesticide suspending agent containing water-soluble components and preparation method thereof |
| CN115868489A (en) * | 2022-12-29 | 2023-03-31 | 南京科翼新材料有限公司 | Synergistic additive of refined glufosinate soluble granules and preparation method thereof |
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