CN114097811B - Weeding composition containing halosulfuron-methyl and clopyralid and application thereof - Google Patents
Weeding composition containing halosulfuron-methyl and clopyralid and application thereof Download PDFInfo
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- CN114097811B CN114097811B CN202111540620.0A CN202111540620A CN114097811B CN 114097811 B CN114097811 B CN 114097811B CN 202111540620 A CN202111540620 A CN 202111540620A CN 114097811 B CN114097811 B CN 114097811B
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- Prior art keywords
- clopyralid
- methyl
- halosulfuron
- composition
- weeding
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- 239000005500 Clopyralid Substances 0.000 title claims abstract description 96
- 239000005564 Halosulfuron methyl Substances 0.000 title claims abstract description 84
- HUBANNPOLNYSAD-UHFFFAOYSA-N clopyralid Chemical compound OC(=O)C1=NC(Cl)=CC=C1Cl HUBANNPOLNYSAD-UHFFFAOYSA-N 0.000 title claims abstract description 78
- FMGZEUWROYGLAY-UHFFFAOYSA-N Halosulfuron-methyl Chemical group ClC1=NN(C)C(S(=O)(=O)NC(=O)NC=2N=C(OC)C=C(OC)N=2)=C1C(=O)OC FMGZEUWROYGLAY-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000000203 mixture Substances 0.000 title claims abstract description 48
- 238000009333 weeding Methods 0.000 title claims abstract description 33
- 241000196324 Embryophyta Species 0.000 claims abstract description 51
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims abstract description 20
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 20
- 235000005822 corn Nutrition 0.000 claims abstract description 20
- 239000004562 water dispersible granule Substances 0.000 claims abstract description 20
- 244000062793 Sorghum vulgare Species 0.000 claims abstract description 17
- 235000019713 millet Nutrition 0.000 claims abstract description 17
- 239000000375 suspending agent Substances 0.000 claims abstract description 8
- 240000008042 Zea mays Species 0.000 claims description 18
- 230000002363 herbicidal effect Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 30
- 230000002195 synergetic effect Effects 0.000 abstract description 6
- 239000000575 pesticide Substances 0.000 abstract description 5
- 238000001228 spectrum Methods 0.000 abstract description 4
- 239000004480 active ingredient Substances 0.000 abstract description 3
- 241000209149 Zea Species 0.000 abstract 2
- -1 halosulfuron-methyl clopyralid Chemical compound 0.000 description 33
- 238000002156 mixing Methods 0.000 description 25
- 238000011282 treatment Methods 0.000 description 20
- 239000003814 drug Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 17
- 239000012752 auxiliary agent Substances 0.000 description 14
- 239000004009 herbicide Substances 0.000 description 13
- 239000002994 raw material Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- 239000000945 filler Substances 0.000 description 12
- 231100000674 Phytotoxicity Toxicity 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 239000011734 sodium Substances 0.000 description 10
- 229910052708 sodium Inorganic materials 0.000 description 10
- 239000008187 granular material Substances 0.000 description 9
- 239000012053 oil suspension Substances 0.000 description 9
- 208000024891 symptom Diseases 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 235000019198 oils Nutrition 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 238000012216 screening Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 6
- 238000004260 weight control Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 244000068988 Glycine max Species 0.000 description 4
- 235000010469 Glycine max Nutrition 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 244000234609 Portulaca oleracea Species 0.000 description 4
- 235000001855 Portulaca oleracea Nutrition 0.000 description 4
- 239000000440 bentonite Substances 0.000 description 4
- 229910000278 bentonite Inorganic materials 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- 229940077388 benzenesulfonate Drugs 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 150000002191 fatty alcohols Chemical class 0.000 description 4
- 230000012010 growth Effects 0.000 description 4
- 238000003306 harvesting Methods 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 4
- 244000105624 Arachis hypogaea Species 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 241000219146 Gossypium Species 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000005586 Nicosulfuron Substances 0.000 description 3
- 229920000142 Sodium polycarboxylate Polymers 0.000 description 3
- 239000003945 anionic surfactant Substances 0.000 description 3
- 239000002285 corn oil Substances 0.000 description 3
- 235000005687 corn oil Nutrition 0.000 description 3
- 239000004495 emulsifiable concentrate Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- RTCOGUMHFFWOJV-UHFFFAOYSA-N nicosulfuron Chemical compound COC1=CC(OC)=NC(NC(=O)NS(=O)(=O)C=2C(=CC=CN=2)C(=O)N(C)C)=N1 RTCOGUMHFFWOJV-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 235000020232 peanut Nutrition 0.000 description 3
- PYODKQIVQIVELM-UHFFFAOYSA-M sodium;2,3-bis(2-methylpropyl)naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S([O-])(=O)=O)=C(CC(C)C)C(CC(C)C)=CC2=C1 PYODKQIVQIVELM-UHFFFAOYSA-M 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 description 2
- 235000018262 Arachis monticola Nutrition 0.000 description 2
- 241000234653 Cyperus Species 0.000 description 2
- 244000150195 Cyperus longus Species 0.000 description 2
- 235000019484 Rapeseed oil Nutrition 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 229960000892 attapulgite Drugs 0.000 description 2
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 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
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 229910052625 palygorskite Inorganic materials 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000011076 safety test Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000012424 soybean oil Nutrition 0.000 description 2
- 239000003549 soybean oil Substances 0.000 description 2
- 230000009885 systemic effect Effects 0.000 description 2
- 241000448435 Acalypha australis Species 0.000 description 1
- 240000001592 Amaranthus caudatus Species 0.000 description 1
- 235000009328 Amaranthus caudatus Nutrition 0.000 description 1
- 241000208838 Asteraceae Species 0.000 description 1
- 240000006740 Cichorium endivia Species 0.000 description 1
- 244000075634 Cyperus rotundus Species 0.000 description 1
- 235000016854 Cyperus rotundus Nutrition 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000220485 Fabaceae Species 0.000 description 1
- 239000005558 Fluroxypyr Substances 0.000 description 1
- LXKOADMMGWXPJQ-UHFFFAOYSA-N Halosulfuron Chemical compound COC1=CC(OC)=NC(NC(=O)NS(=O)(=O)C=2N(N=C(Cl)C=2C(O)=O)C)=N1 LXKOADMMGWXPJQ-UHFFFAOYSA-N 0.000 description 1
- 240000001140 Mimosa pudica Species 0.000 description 1
- 235000016462 Mimosa pudica Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229940100389 Sulfonylurea Drugs 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000012735 amaranth Nutrition 0.000 description 1
- 239000004178 amaranth Substances 0.000 description 1
- 230000003698 anagen phase Effects 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000003733 chicria Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- MEFQWPUMEMWTJP-UHFFFAOYSA-N fluroxypyr Chemical compound NC1=C(Cl)C(F)=NC(OCC(O)=O)=C1Cl MEFQWPUMEMWTJP-UHFFFAOYSA-N 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- URXNVXOMQQCBHS-UHFFFAOYSA-N naphthalene;sodium Chemical compound [Na].C1=CC=CC2=CC=CC=C21 URXNVXOMQQCBHS-UHFFFAOYSA-N 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical class OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental 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)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A weeding composition containing halosulfuron-methyl and clopyralid and application thereof relate to the technical field of pesticides and comprise the active ingredients of halosulfuron-methyl and clopyralid, wherein the mass part ratio of halosulfuron-methyl to clopyralid is (1-5): (5-25), the halosulfuron-methyl and clopyralid account for 5-95% of the total mass of the composition, the composition can be prepared into water dispersible granules or dispersible oil suspending agents, the composition is used for controlling harmful plants in crops, the composition is used for controlling harmful plants in millet fields and corn fields, the synergistic effect of the halosulfuron-methyl and the clopyralid is obvious after being compounded, and the weeding composition has obvious combined synergistic effect on common weeds in the millet fields, expands the weeding spectrum and has higher control effect on common weeds in the millet fields and the corn fields.
Description
Technical Field
The invention relates to the technical field of pesticides, in particular to a weeding composition containing halosulfuron-methyl and clopyralid and application thereof.
Background
Millet and corn are important grain crops in China, have long planting history and have important significance for guaranteeing the grain safety in China.
The herbicides widely used for stem and leaf treatment in the current millet fields are 2, 4-butyl acetate, sodium dimethyltetrachloride, fluroxypyr and the like, but the herbicides have the problems of low safety to the millet, easy drifting, sensitive plant phytotoxicity, narrow weed killing spectrum, difficult cleaning of spraying instruments and the like in the use process. The common herbicide for corn fields is nicosulfuron, which is easy to form phytotoxicity on corn and has poor control effect on part of broadleaf weeds.
The halosulfuron-methyl has the general English name halosulfuron and the chemical name 3- (4, 6-dimethoxy pyrimidine-2-yl) -1- (1-methyl-3-chloro-4-methoxy formyl pyrazole-5-yl) sulfonylurea, belongs to sulfonylurea herbicides, has systemic conductivity, inhibits the activity of ALS enzyme in target plants, causes the symptoms of slow weed growth, green leaf loss, death of growing points and the like, and can be used for crops such as rice, corn and the like, such as nutgrass flatsedge, amaranth, acalypha australis and the like.
The English generic name of clopyralid is clopyralid, the chemical name is 3, 6-dichloropyridine-2-carboxylic acid, the clopyralid belongs to heterocyclic herbicides, the clopyralid has systemic conductivity, symptoms such as withering and necrosis can occur after sensitive weeds are absorbed, and finally the clopyralid dies. Clopyralid has good effect of preventing and killing dicotyledonous weeds such as endive, herba Violae, herba Bidentis Bipinnatae, etc. of Compositae and Leguminosae.
At present, chemical weeding is the most economical and effective means for preventing and controlling farmland weeds, but most herbicides are easy to cause phytotoxicity to millet, and few herbicides for paddy fields and corn fields exist; there is no report of a weeding composition containing halosulfuron-methyl and clopyralid at present, and no report of weeding of millet fields and corn fields after compounding halosulfuron-methyl and clopyralid.
Disclosure of Invention
The invention aims to solve the problems, and provides a weeding composition and application thereof, which can realize safe and efficient weed control after seedling in millet fields and corn fields.
The technical scheme adopted by the invention is that the weeding composition containing halosulfuron-methyl and clopyralid comprises active ingredients of halosulfuron-methyl and clopyralid, wherein the mass part ratio of halosulfuron-methyl to clopyralid is (1-5): (5-25).
The mass part ratio of the halosulfuron-methyl to the clopyralid is (1-3): (5-10).
The halosulfuron-methyl and clopyralid account for 5% -95% of the total mass of the composition.
The halosulfuron-methyl and clopyralid account for 30-80% of the total mass of the composition.
The composition can be prepared into water dispersible granules or dispersible oil suspending agents.
The composition is used for controlling harmful plants in crops.
The composition is used for preventing and controlling harmful plants in millet fields and corn fields.
The beneficial effects of the invention are as follows:
1. after the combination, the synergistic effect is obvious, and the weeding combination has obvious combined synergistic effect on common weeds in paddy fields.
2. The weed control spectrum is enlarged, and the weed control agent has higher control effect on common weeds in millet fields and corn fields.
3. The composition has high safety to crops, avoids drifting phytotoxicity to millet, corn and surrounding sensitive crops, and has no phytotoxicity symptoms after the composition is applied to the crops in the test process, and other crops nearby, such as soybeans, peanuts, cotton and the like, have no drifting phytotoxicity symptoms.
Detailed Description
In order to make the purposes, technical solutions and technical effects of the embodiments of the present invention more clear, the present invention is further described below with reference to specific embodiments.
1. Examples
Example 1:5% halosulfuron-methyl clopyralid water dispersible granule (5:5)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 2.5% of halosulfuron-methyl, 2.5% of clopyralid, 2% of sodium alkyl sulfate, 5% of sodium p-methoxy fatty amido benzene sulfonate and the balance of attapulgite.
The process comprises the following steps: mixing raw materials, auxiliary agents and fillers according to mass proportion, crushing by an air flow crusher to obtain mother powder, mixing with water, uniformly dispersing by a homogenizing and dispersing machine, extruding and granulating, drying by a fluidized bed, and screening the granules to obtain the water dispersible granule, and detecting to be qualified to obtain the finished product.
The sodium alkyl sulfate is used as an anionic surface penetrating agent, so that the spreading and attaching actions of the liquid medicine on the plant surface are enhanced, and the absorption of the target plant to the active ingredients is obviously increased. The sodium p-methoxy fatty amido benzene sulfonate is matched with alkyl sodium sulfate to greatly improve the dispersibility of the liquid medicine, so that the liquid medicine is dispersed into more uniform suspension liquid in the use process, and the wettability of the suspension liquid is further improved.
Example 2:95% halosulfuron-methyl clopyralid water dispersible granule (2:8)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 19% of halosulfuron-methyl, 76% of clopyralid, 1% of sodium alkyl sulfate, 1% of sodium p-methoxy fatty amido benzene sulfonate and the balance of attapulgite.
The process comprises the following steps: mixing raw materials, auxiliary agents and fillers according to mass proportion, crushing by an air flow crusher to obtain mother powder, mixing with water, uniformly dispersing by a homogenizing and dispersing machine, extruding and granulating, drying by a fluidized bed, and screening the granules to obtain the water dispersible granule, and detecting to be qualified to obtain the finished product.
Example 3:30% halosulfuron-methyl clopyralid water dispersible granule (1:5)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 5% of halosulfuron-methyl, 25% of clopyralid, 5% of calcium alkylbenzenesulfonate, 10% of sodium polycarboxylate and the balance of kaolin.
The process comprises the following steps: mixing raw materials, auxiliary agents and fillers according to mass proportion, crushing by an air flow crusher to obtain mother powder, mixing with water, uniformly dispersing by a homogenizing and dispersing machine, extruding and granulating, drying by a fluidized bed, and screening the granules to obtain the water dispersible granule, and detecting to be qualified to obtain the finished product.
The calcium alkyl benzene sulfonate is used as an emulsifier and a surfactant, and the dosage form is easier to prepare.
The sodium polycarboxylate is used as a dispersing agent, has small sensitivity to ions, pH value, temperature and the like in a suspension system, has high dispersion stability, is not easy to generate sedimentation and flocculation, obviously reduces the viscosity of the dispersion system, and is matched with calcium alkylbenzenesulfonate for use, so that the dispersibility and uniformity of the composition are obviously improved, and the environmental pollution is reduced.
Example 4:80% halosulfuron-methyl clopyralid water dispersible granule (3:5)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 20% of halosulfuron-methyl, 60% of clopyralid, 3% of calcium alkylbenzenesulfonate, 5% of sodium polycarboxylate and the balance of kaolin.
The process comprises the following steps: mixing raw materials, auxiliary agents and fillers according to mass proportion, crushing by an air flow crusher to obtain mother powder, mixing with water, uniformly dispersing by a homogenizing and dispersing machine, extruding and granulating, drying by a fluidized bed, and screening the granules to obtain the water dispersible granule, and detecting to be qualified to obtain the finished product.
Example 5:26% halosulfuron-methyl clopyralid dispersible oil suspension (1:25)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 1% of halosulfuron-methyl, 25% of clopyralid, 5% of fatty alcohol polyoxyethylene ether phosphate, 5% of epoxidized soybean oil, 8% of white carbon black and the balance of methyl oleate.
The process comprises the following steps: mixing the raw materials, the auxiliary agent and the filler according to the mass ratio, uniformly mixing by a mixer, processing by a high-speed shearing machine and a sanding machine in sequence, and obtaining the finished product after the detection is qualified.
The fatty alcohol polyoxyethylene ether phosphate belongs to a nonionic surfactant, and ether bonds in molecules are not easily damaged by acid and alkali, so that the fatty alcohol polyoxyethylene ether phosphate has higher stability and better water solubility, can be slowly oxidized with oxygen to generate oxides, and further improves the drug effect of the examples.
Example 6:60% halosulfuron-methyl clopyralid dispersible oil suspension (5:25)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 10% of halosulfuron-methyl, 50% of clopyralid, 5% of fatty alcohol polyoxyethylene ether phosphate, 5% of epoxidized soybean oil, 8% of white carbon black and the balance of methyl oleate.
The process comprises the following steps: mixing the raw materials, the auxiliary agent and the filler according to the mass ratio, uniformly mixing by a mixer, processing by a high-speed shearing machine and a sanding machine in sequence, and obtaining the finished product after the detection is qualified.
Example 7:44% halosulfuron-methyl clopyralid dispersible oil suspension (1:10)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 4% of halosulfuron-methyl, 40% of clopyralid, 2% of Tex 7210-DY, 10% of organic bentonite and the balance of corn oil.
The process comprises the following steps: mixing the raw materials, the auxiliary agent and the filler according to the mass ratio, uniformly mixing by a mixer, processing by a high-speed shearing machine and a sanding machine in sequence, and obtaining the finished product after the detection is qualified.
The use of the Tex 7210-DY and the corn oil further increases the emulsifying property of the auxiliary agent, improves the stability, expansibility and wettability of the liquid medicine, and can save other various auxiliary agents.
Example 8:65% halosulfuron-methyl clopyralid dispersible oil suspension (3:10)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 15% of halosulfuron-methyl, 50% of clopyralid, 2% of Tex 7210-DY, 10% of organic bentonite and the balance of corn oil.
The process comprises the following steps: mixing the raw materials, the auxiliary agent and the filler according to the mass ratio, uniformly mixing by a mixer, processing by a high-speed shearing machine and a sanding machine in sequence, and obtaining the finished product after the detection is qualified.
Example 9:70% halosulfuron-methyl clopyralid dispersible oil suspension (2:5)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 20% of halosulfuron-methyl, 50% of clopyralid, 4% of alkyl naphthalene sulfonate sodium salt, 6% of methylene dinaphthyl sulfonate sodium, 5% of bentonite and the balance of clay.
The process comprises the following steps: mixing raw materials, auxiliary agents and fillers according to mass proportion, crushing by an air flow crusher to obtain mother powder, mixing with water, uniformly dispersing by a homogenizing and dispersing machine, extruding and granulating, drying by a fluidized bed, and screening the granules to obtain the water dispersible granule, and detecting to be qualified to obtain the finished product.
The alkyl naphthalene sulfonic acid sodium salt serving as a dispersing agent can reduce the viscosity of solid particles, so that the solid particles can be rapidly dispersed.
The methylene dinaphthyl sodium sulfonate is an anionic surfactant, can be well mixed with other anionic and nonionic surfactants, has better inclusion, and can be used together with alkyl naphthalene sodium sulfonate to further enhance the dispersibility and the diffusivity of the liquid medicine.
Example 10:54% halosulfuron-methyl clopyralid dispersible oil suspension (2:25)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 4% of halosulfuron-methyl, 50% of clopyralid, 4% of alkyl naphthalene sulfonate sodium salt, 6% of methylene dinaphthyl sulfonate sodium, 5% of bentonite and the balance of clay.
The process comprises the following steps: mixing raw materials, auxiliary agents and fillers according to mass proportion, crushing by an air flow crusher to obtain mother powder, mixing with water, uniformly dispersing by a homogenizing and dispersing machine, extruding and granulating, drying by a fluidized bed, and screening the granules to obtain the water dispersible granule, and detecting to be qualified to obtain the finished product.
Example 11:36% halosulfuron-methyl clopyralid dispersible oil suspension (1:8)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: halosulfuron-methyl 4%, clopyralid 32%, OP-10%, nekal BX 1% and rapeseed oil for the rest.
The process comprises the following steps: mixing raw materials, auxiliary agents and fillers according to mass proportion, crushing by an air flow crusher to obtain mother powder, mixing with water, uniformly dispersing by a homogenizing and dispersing machine, extruding and granulating, drying by a fluidized bed, and screening the granules to obtain the water dispersible granule, and detecting to be qualified to obtain the finished product.
OP-10 ensures the emulsifiability and stability of this embodiment during production, storage and use.
The nekal BX is soluble in hard water and soft water, is an anionic surfactant, reduces the viscosity of solid particles, and further enhances the permeability, wettability and stability of the liquid medicine when being matched with OP-10 for use.
Example 12:33% halosulfuron-methyl clopyralid dispersible oil suspension (3:8)
The weeding composition containing halosulfuron-methyl and clopyralid comprises the following components in percentage by mass: 9% of halosulfuron-methyl, 24% of clopyralid, 1% of alkyl naphthalene sulfonate, 3% of OP-10%, 1% of nekal BX and the balance of rapeseed oil.
The process comprises the following steps: mixing the raw materials, the auxiliary agent and the filler according to the mass ratio, uniformly mixing by a mixer, processing by a high-speed shearing machine and a sanding machine in sequence, and obtaining the finished product after the detection is qualified.
2. Test of efficacy
1. Combined action determination in halosulfuron-methyl and clopyralid mixing room
The test was carried out in the greenhouse of the institute of food and oil crops, academy of agriculture and forestry, hebei province, according to "NY/T1155.7-2006, section 7 of herbicide, in laboratory bioassay test guidelines: the Gowing method in the Mixed combination assay ".
The tested weeds are common weeds in the field, namely purslane and nutgrass flatsedge, and the germination rate is more than 80%.
The test agent is a commercial raw material.
The specific test method comprises the following steps: adding 3/4 soil into a flowerpot with the diameter of 12cm, sowing weed seeds, covering soil for 2mm, culturing at 25 ℃ in an illumination culture room, and taking the herbicide when the weeds reach 3-4 leaves.
When in use, the original medicine is accurately weighed according to the table 1 by using ten thousandth electronic level, 2 times of N, N-dimethylformamide is respectively added into the original medicine until the original medicine is completely dissolved, and 0.1% tween-80 water solution is diluted to constant volume. And sucking corresponding liquid medicine according to the liquid spraying amount, and spraying stems and leaves of weeds by using a 3WP-2000 type walking spray tower.
The synergistic effect of the mixture is evaluated by using a Gowing method, the fresh weight of the overground parts of weeds is measured 28d after the mixture is dosed, and E (actual control effect,%) = (fresh weight of blank control-fresh weight treated by drug) ×100%/fresh weight of blank control; e (E) 0 (theoretical control effect of mixture,%) =x+y× (100-X)/(100), and X and Y are actual control effects E of corresponding doses of halosulfuron-methyl and clopyralid respectively. When E-E 0 Antagonistic effect at-10%, E-E of-10% 0 The addition is carried out when the content is less than or equal to 10%, E-E 0 At > 10% synergy.
TABLE 1 herbicidal efficacy against and in combination with clopyralid
The test result shows that the control effect of halosulfuron-methyl on purslane is 33.2% -71.2% and the control effect of cyperus rotundus is 40.6% -79.5% under the condition of the reagent supply amount; the control effect of clopyralid on purslane is 32.6-56.8% and the control effect of clopyralid on nutgrass galingale rhizome is 21.2-44.1% under the condition of the supply of clopyralid (Table 1).
After the halosulfuron-methyl and clopyralid are mixed according to a certain proportion, the control effect on various weeds is obviously improved. The combined action measurement result shows that the actual prevention effect of the chlorpyrisulfuron and clopyralid on the purslane and the nutgrass galingale rhizome after being compounded respectively reaches 73.1-100% and 68.5-100%, and the prevention effect of the chlorpyrisulfuron and the clopyralid on weeds is obviously improved; the weeding composition also has a good weeding effect on insensitive weeds, and expands the weeding spectrum; the effect of the combined action is more than 10%, and the combined action belongs to the synergistic action (table 1).
2. Halosulfuron-methyl clopyralid paddy field weeding and safety test
The herbicides prepared in examples 3,7,6,4 were used in this test; the control medicament is commercially available 75% halosulfuron-methyl water dispersible granule, 75% clopyralid soluble granule and 57%2, 4-D butyl ester emulsifiable concentrate; the millet variety is Yugu No. 18, and the test site is Hebei Shijia city Ma Zhuangcun.
The field test is carried out on days (weeds 2-5 leaves and crops 3-5 leaves) of 2021 and 14 months, the spraying amount is 40L/mu, the spraying device is an HD400 knapsack sprayer produced by Singapore private limited company, the spray head is a fan-shaped spray head, 7 application treatments are arranged in the paddy field, blank control treatments and manual weeding treatments are additionally arranged, each treatment area is 25 square meters, the treatments are repeated for four times, the treatments are arranged in random groups, and the medicaments and dosages of each application treatment are respectively shown in Table 2.
After the medicine is applied, the fresh weight of the overground parts of the weeds is measured for each treatment of 28d, the fresh weight control effect of the medicine on the weeds is calculated, and the calculation formula is as follows: fresh weed weight control (%) = (fresh weed weight in control area-fresh weed weight in dosing area) ×100%/fresh weed weight in control area.
And (5) measuring the yield of the cells during crop harvesting.
The test results show that 30% halosulfuron-methyl and clopyralid water dispersible granule, 44% halosulfuron-methyl and clopyralid dispersible oil suspending agent, 60% halosulfuron-methyl and clopyralid dispersible oil suspending agent, 80% halosulfuron-methyl and clopyralid water dispersible granule (example 3,7,6,4) 260gai/ha treatment has good control effect on broadleaf weeds in the field, the total fresh weight control effect of 28d after the pesticide is more than 90%, and the control effect is obviously better than the control effect of halosulfuron-methyl and clopyralid for single use, and is also obviously better than the control effect of the common herbicide 2, 4-D butyl ester emulsifiable concentrate for the paddy field on the broadleaf weeds (Table 2).
After halosulfuron-methyl-clopyralid is treated, the millet has normal growth vigor and long phase and no phytotoxicity symptoms, and the yield measurement result at the time of harvest shows that the halosulfuron-methyl-clopyralid is obviously superior to the control medicament and the blank control treatment and has no obvious difference from the manual weeding treatment (table 3). The crops such as soybean, peanut, cotton and the like around the crops are visually inspected to grow normally, and no phytotoxicity symptoms exist; the leaves of soybean and cotton around the applied 57%2, 4-butyl ester emulsifiable concentrate have shrinkage phenomenon.
TABLE 2 herbicidal effects of halosulfuron-methyl and clopyralid on millet field weeds
TABLE 3 Effect of halosulfuron-methyl clopyralid herbicidal composition on millet yield
3. Weeding and safety test for halosulfuron-methyl clopyralid corn field
The herbicides prepared in examples 3,7,6,4 were used in this test; the control medicament is a commercially available 75% halosulfuron-methyl water dispersible granule, 75% clopyralid soluble granule and 4% nicosulfuron-methyl oil suspending agent; the corn variety is Zhengdan 958, and the test site is Ma Zhuangcun from Shijia village of Hebei province.
The field test is carried out on days 7 and 14 (weeds 2-5 leaves and crops 3-5 leaves) in 2021, the spraying amount is 40L/mu, the pesticide application device is an HD400 knapsack sprayer produced by Singapore private company, and the spray head is a fan-shaped spray head. The treatment area of each treatment was 25 square meters, four replicates, and the treatment was arranged in random groups, and the agent and dose of each treatment were shown in Table 4.
After the medicine is applied, the fresh weight of the overground parts of the weeds is measured for each treatment of 28d, the fresh weight control effect of the medicine on the weeds is calculated, and the calculation formula is as follows: fresh weed weight control (%) = (fresh weed weight in control area-fresh weed weight in dosing area) ×100%/fresh weed weight in control area.
And (5) measuring the yield of the cells during crop harvesting.
The test results show that the 30% halosulfuron-methyl and clopyralid water dispersible granule, the 44% halosulfuron-methyl and clopyralid dispersible oil suspending agent, the 60% halosulfuron-methyl and clopyralid water dispersible granule and the 80% halosulfuron-methyl and clopyralid dispersible oil suspending agent (example 3,7,6,4) have good control effects on broadleaf weeds in fields after 260g ai/ha treatment, the total fresh weight control effect of 28d after the pesticide is over 90%, and the control effects are obviously better than those of halosulfuron-methyl and clopyralid for single use, and are also obviously better than those of the common herbicide nicosulfuron in corn fields on broadleaf weeds (Table 4).
After halosulfuron-methyl and clopyralid are treated, the corn has normal growth vigor and growth phase and no phytotoxicity symptoms, and the yield measurement result at the time of harvest shows that the halosulfuron-methyl and clopyralid is obviously superior to the control agent and the blank control treatment and has no obvious difference from the manual weeding treatment (table 5). The crops such as soybean, peanut, cotton and the like around the crops are visually inspected to grow normally, and no phytotoxicity symptoms exist; corn growth was inhibited and leaves had albino symptoms after 4% nicosulfuron oil suspension was applied.
TABLE 4 control of halosulfuron-methyl clopyralid herbicidal composition on corn field weeds
TABLE 5 Effect of halosulfuron-methyl clopyralid herbicidal compositions on corn yield
Claims (4)
1. A herbicidal composition comprising halosulfuron-methyl and clopyralid, characterized in that: the effective components of the weeding composition are halosulfuron-methyl and clopyralid, and the mass part ratio of halosulfuron-methyl to clopyralid is (1-3): (5-10), the halosulfuron-methyl and clopyralid account for 30-80% of the total mass of the composition.
2. A herbicidal composition comprising halosulfuron-methyl and clopyralid according to claim 1, characterized in that: the composition can be prepared into water dispersible granules or dispersible oil suspending agents.
3. Use of a herbicidal composition comprising halosulfuron-methyl and clopyralid according to claim 1, characterized in that: the composition is used for controlling harmful plants in crops.
4. Use of a herbicidal composition comprising halosulfuron-methyl and clopyralid according to claim 1, characterized in that: the composition is used for preventing and controlling harmful plants in millet fields and corn fields.
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