CN110856491A - Herbicidal composition and use thereof - Google Patents
Herbicidal composition and use thereof Download PDFInfo
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- CN110856491A CN110856491A CN201910134375.XA CN201910134375A CN110856491A CN 110856491 A CN110856491 A CN 110856491A CN 201910134375 A CN201910134375 A CN 201910134375A CN 110856491 A CN110856491 A CN 110856491A
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- herbicidal composition
- active ingredient
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- ammonium
- chloro
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- 239000000203 mixture Substances 0.000 title claims abstract description 81
- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 51
- 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 claims abstract description 53
- 239000004480 active ingredient Substances 0.000 claims abstract description 36
- 241000196324 Embryophyta Species 0.000 claims abstract description 33
- 238000009333 weeding Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- -1 alkyl naphthalene formaldehyde Chemical compound 0.000 claims description 17
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 10
- 150000001412 amines Chemical class 0.000 claims description 10
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 claims description 10
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 claims description 10
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 10
- 239000003760 tallow Substances 0.000 claims description 10
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 9
- 229920000056 polyoxyethylene ether Polymers 0.000 claims 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 claims description 8
- 239000011734 sodium Substances 0.000 claims description 8
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- 229920001732 Lignosulfonate Polymers 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 238000009472 formulation Methods 0.000 claims description 4
- 239000002671 adjuvant Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 239000004530 micro-emulsion Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- 239000000084 colloidal system Substances 0.000 claims description 2
- 239000012053 oil suspension Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000007798 antifreeze agent Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 239000004009 herbicide Substances 0.000 abstract description 5
- 238000013329 compounding Methods 0.000 abstract description 4
- 241001290610 Abildgaardia Species 0.000 abstract description 3
- 238000001228 spectrum Methods 0.000 abstract description 3
- 239000003814 drug Substances 0.000 description 12
- 150000001875 compounds Chemical class 0.000 description 11
- 238000002156 mixing Methods 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- 239000012752 auxiliary agent Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 229920005552 sodium lignosulfonate Polymers 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 5
- 231100000820 toxicity test Toxicity 0.000 description 5
- 244000026873 Alternanthera philoxeroides Species 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 230000001018 virulence Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 240000000178 Monochoria vaginalis Species 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 102000039446 nucleic acids Human genes 0.000 description 3
- 108020004707 nucleic acids Proteins 0.000 description 3
- 150000007523 nucleic acids Chemical class 0.000 description 3
- 239000000375 suspending agent Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 125000005499 phosphonyl group Chemical group 0.000 description 2
- 238000010672 photosynthesis Methods 0.000 description 2
- 230000029553 photosynthesis Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000001243 protein synthesis Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000009885 systemic effect Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 230000014616 translation Effects 0.000 description 2
- SQAINHDHICKHLX-UHFFFAOYSA-N 1-naphthaldehyde Chemical compound C1=CC=C2C(C=O)=CC=CC2=C1 SQAINHDHICKHLX-UHFFFAOYSA-N 0.000 description 1
- FLFIGQYIQCUHBS-UHFFFAOYSA-N 2-(4-chloro-2-methylphenoxy)acetic acid Chemical compound ClC1=CC(=C(OCC(=O)O)C=C1)C.ClC1=CC(=C(OCC(=O)O)C=C1)C FLFIGQYIQCUHBS-UHFFFAOYSA-N 0.000 description 1
- PQVHMOLNSYFXIJ-UHFFFAOYSA-N 4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]pyrazole-3-carboxylic acid Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(N1CC2=C(CC1)NN=N2)=O)C(=O)O PQVHMOLNSYFXIJ-UHFFFAOYSA-N 0.000 description 1
- 241000270728 Alligator Species 0.000 description 1
- 241000428811 Alternanthera Species 0.000 description 1
- 241000223600 Alternaria Species 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000031023 Amana edulis Species 0.000 description 1
- 244000242024 Conyza bonariensis Species 0.000 description 1
- 235000004385 Conyza canadensis Nutrition 0.000 description 1
- 241000234646 Cyperaceae Species 0.000 description 1
- 244000075634 Cyperus rotundus Species 0.000 description 1
- 235000016854 Cyperus rotundus Nutrition 0.000 description 1
- 244000152970 Digitaria sanguinalis Species 0.000 description 1
- 235000010823 Digitaria sanguinalis Nutrition 0.000 description 1
- 206010059866 Drug resistance Diseases 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
- 235000014820 Galium aparine Nutrition 0.000 description 1
- 239000005561 Glufosinate Substances 0.000 description 1
- QWCKQJZIFLGMSD-VKHMYHEASA-N L-alpha-aminobutyric acid Chemical compound CC[C@H](N)C(O)=O QWCKQJZIFLGMSD-VKHMYHEASA-N 0.000 description 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 1
- 108091005461 Nucleic proteins Proteins 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 235000010086 Setaria viridis var. viridis Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- DGLFSNZWRYADFC-UHFFFAOYSA-N chembl2334586 Chemical compound C1CCC2=CN=C(N)N=C2C2=C1NC1=CC=C(C#CC(C)(O)C)C=C12 DGLFSNZWRYADFC-UHFFFAOYSA-N 0.000 description 1
- 210000003763 chloroplast Anatomy 0.000 description 1
- 238000012136 culture method Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 102000005396 glutamine synthetase Human genes 0.000 description 1
- 108020002326 glutamine synthetase Proteins 0.000 description 1
- 244000230342 green foxtail Species 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 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 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 description 1
- 229940073769 methyl oleate Drugs 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 238000001668 nucleic acid synthesis Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- QIIPQYDSKRYMFG-UHFFFAOYSA-N phenyl hydrogen carbonate Chemical compound OC(=O)OC1=CC=CC=C1 QIIPQYDSKRYMFG-UHFFFAOYSA-N 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
- 239000004563 wettable powder 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
- 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
- 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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a weeding composition and application thereof. The weeding composition comprises an active ingredient A and an active ingredient B. Wherein the active ingredient A is glufosinate-ammonium and the active ingredient B comprises 2-methyl-4-chloro. The weight ratio of the active ingredient A to the active ingredient B is 80: 1-1: 20. The herbicidal composition can be used for controlling perennial grassy weeds, broadleaf weeds and sedge weeds. By compounding various active ingredients, the low-temperature control effect and the control efficiency of perennial weeds can be improved, the weed control speed is improved, the weed control spectrum is expanded, and the dosage of the herbicide is reduced.
Description
Technical Field
The invention relates to a weeding composition, in particular to a weeding composition containing glufosinate-ammonium and application thereof in agriculture.
Background
The chemical name of the refined glufosinate-ammonium is 4- [ hydroxy (methyl) phosphonyl]L-homoalanine, readily soluble in water, poorly soluble in organic solvents, stable to light, melting point 214-216 ℃ and the formula: c5H12NO4P; molecular weight: 181.1, respectively; the structural formula is as follows:
the glufosinate-ammonium belongs to a non-conductive contact herbicide, and is used for preventing and controlling weeds by inhibiting glutamine synthetase, so that the metabolic disturbance of nitrogen in a plant body and the cumulative poisoning of nitrogen are caused, the synthesis and photosynthesis of chloroplast are hindered, and finally the plant is dead. The refined glufosinate-ammonium has the advantages of low toxicity, high safety, wide weeding spectrum, high activity, high weeding speed and the like. In addition, the refined glufosinate-ammonium has good water solubility and is convenient to process and mix for use.
2-methyl-4-chlorophenoxyacetic acid (2-methyl-4-chlorophenoxyacetic acid) belongs to phenoxy carboxylic acid selective herbicide, has strong systemic conductivity, is mainly used for post-emergence stem and leaf treatment, and the medicament passes through cuticle and cytoplasmic membrane and is finally conducted to each part to generate different influences on nucleic acid and protein synthesis at different parts, inhibit nucleic acid metabolism and protein synthesis at the top of plants, stop growing points from growing, and ensure that young leaves cannot stretch until photosynthesis can not normally proceed; the medicament is conducted to the lower part of the plant, so that the synthesis of nucleic acid and protein of the stem tissue of the plant is increased, the abnormal division of cells is promoted, the root tip is expanded, the capability of absorbing nutrients is lost, the stem is distorted and deformed, the sieve tube is blocked, the phloem is damaged, and the transportation of organic matters is blocked, so that the normal living capability of the plant is damaged, and finally the plant is dead. The chemical structural formula is as follows:
however, long-term use of the glufosinate-ammonium or 2-methyl-4-chloro single agent can easily cause drug resistance, so that the dosage is increased, the environmental impact is increased, the prevention and treatment effect is reduced, and the medication cost is increased.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a herbicidal composition, which comprises glufosinate-ammonium as one of the active ingredients, and is compounded with 2-methyl-4-chloro to achieve the effects of improving the low-temperature control effect and the control efficiency of perennial weeds, increasing the weed control speed, expanding the weed control spectrum, and reducing the dosage of the herbicide.
According to one aspect, the invention provides a weeding composition, which comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is glufosinate-ammonium, the active ingredient B comprises 2-methyl-4-chloro, and the weight ratio of the active ingredient A to the active ingredient B is 80: 1-1: 20.
The weight percentage of the active ingredient A and the active ingredient B is 10-60% based on the total weight of the weeding composition.
According to a specific embodiment, the effective amount of the herbicidal composition is 50 to 150g (a.i.)/ha.
According to another embodiment, the herbicidal composition comprises, based on the total weight of the herbicidal composition: 1-50% of refined glufosinate-ammonium, 1-15% of 2-methyl-4-chloro and 3-40% of composite auxiliary.
According to a specific embodiment, the herbicidal composition comprises, based on the total weight of the herbicidal composition: 1-50% of refined glufosinate-ammonium, 1-15% of 2-methyl-4-chloro, 1-25% of lignosulfonate, 2-10% of alkyl naphthalene formaldehyde condensate sodium sulfonate and the balance of water.
According to another embodiment, the herbicidal composition comprises, based on the total weight of the herbicidal composition: 1-50% of refined glufosinate-ammonium, 1-15% of 2-methyl-4-chloro, 3-18% of tallow amine polyoxyethylene ether, 5-15% of polyoxyethylene sorbitan monolaurate and 20-50% of water.
The weeding composition also comprises one or more auxiliary agents of fillers, emulsifiers, thickeners, antifreezing agents, dispersing agents, binders, stabilizers, safeners and synergists.
Optionally, the formulation of the herbicidal composition is selected from aqueous solutions, wettable powders, dusts, granules, microemulsions, aqueous emulsions, oil suspensions, aqueous suspensions and colloids.
According to another aspect of the present invention, the present invention also provides use of the herbicidal composition for controlling weeds.
The weeding composition has the following advantages because the components contain the glufosinate-ammonium, and the glufosinate-ammonium is matched with the 2-methyl-4-chloro compound and optionally the compound auxiliary agent: the high efficiency and excellent water solubility of the refined glufosinate-ammonium are fully utilized, so that the use dosage of the pesticide preparation is reduced, and the use of an organic solvent is reduced or even avoided; selectivity of 2-methyl-4-chloro to grassy weeds, broadleaf weeds and cyperaceae weeds is utilized; the absorption of the plant medicine is enhanced by utilizing the bonding effect among the refined glufosinate-ammonium, the 2-methyl-4-chlorine and the compound auxiliary agent, so that the weeding activity of the refined glufosinate-ammonium and the 2-methyl-4-chlorine is more fully exerted, the control efficiency of the compound weeding composition on perennial weeds is further improved, the control efficiency of low-temperature control and perennial weeds is improved, the weed control speed is improved, and the application range of the pesticide is expanded.
Therefore, the weeding composition has more remarkable synergistic effect compared with the single use of the glufosinate-ammonium and the 2-methyl-4-chloro. In particular, the herbicidal compositions according to the invention are particularly suitable for controlling perennial grassy weeds, broad-leaved weeds and sedge weeds, such as goosegrass, alternanthera philoxeroides, barnyard grass, green bristlegrass, large crabgrass, cyperus rotundus, edible tulip, mitsubishi, monochoria vaginalis, horseweed, etc.
Detailed Description
The weeding composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is glufosinate-ammonium and the active ingredient B comprises 2-methyl-4-chloro.
The weight ratio of the active ingredient A to the active ingredient B can be 80: 1-1: 20, preferably 50: 1-1: 15, more preferably 40: 1-1: 10, most preferably 30: 1-1: 10, and can be, for example, 25:1, 15:1, 10:1, 5:1, 1:1, 1: 5.
According to a specific embodiment, the above herbicidal composition further comprises a complex adjuvant. The herbicidal composition comprising, based on the total weight of the herbicidal composition: 1-50% (preferably 5-45%, more preferably 15-30%, for example 25%) of glufosinate-ammonium, 1-15% (preferably 3-10%, more preferably 5-7%, for example 6%) of 2-methyl-4-chloro, and 3-40% (preferably 3-30%, more preferably 7-25%, for example 10-15%) of a compounding aid. For example, the composite auxiliary agent can be a combination of lignosulfonate and sodium alkyl naphthalene formaldehyde condensate in a weight ratio of 10: 1-1: 5 (e.g. 8: 1-1: 3, preferably 5:1, 1:3), or a combination of tallow amine polyoxyethylene ether and polyoxyethylene sorbitan monolaurate in a weight ratio of 15: 1-1: 5 (e.g. 10: 1-1: 5, preferably 5: 1-1: 2).
The sodium alkylnaphthalene formaldehyde condensate sulfonate can be, for example, sodium alkylnaphthalene formaldehyde condensate sulfonate of C12 to C18, preferably sodium dodecylnaphthalene formaldehyde condensate sulfonate.
Preferably, the above herbicidal composition comprises, based on the total weight of the herbicidal composition: 1-50% of refined glufosinate-ammonium, 1-15% of 2-methyl-4-chloro, 1-25% of lignosulfonate, 2-10% of alkyl naphthalene formaldehyde condensate sodium sulfonate and the balance of water.
Optionally, the herbicidal composition comprises, based on the total weight of the herbicidal composition: 1-50% of refined glufosinate-ammonium, 1-15% of 2-methyl-4-chloro, 3-18% of tallow amine polyoxyethylene ether, 5-15% of polyoxyethylene sorbitan monolaurate and 20-50% of water
Preferably, the herbicidal composition of the present invention may further comprise 1 to 5% by weight of an organic solvent, preferably 1.5 to 3.5%, e.g. 2%, 2.5%.
The organic solvent is selected from ethanol, methanol, N-dimethylformamide, dimethyl sulfoxide, and cyclohexanone.
The weeding composition can also comprise an oily matrix such as methyl oleate and the like, and is used for preparing formulations such as oil emulsion and the like.
Further, the above herbicidal composition may further comprise one or more adjuvants selected from fillers, emulsifiers, thickeners, antifreezes, dispersants, binders, stabilizers, safeners and synergists.
Specifically, the above herbicidal composition may further comprise a surfactant selected from the group consisting of fatty alcohol sulfates, ligninsulfonates, polycarboxylates, naphthalenesulfonates.
The filler used in the present invention may be selected from kaolin, bentonite, white carbon black, light calcium carbonate.
The percentage of the active ingredient is 10 to 60%, preferably 15 to 55%, more preferably 25 to 40%, for example 30%, based on the total weight of the herbicidal composition.
The dosage form of the weeding composition is selected from water aqua, wettable powder, granules, suspending agent, microemulsion, emulsion in water, oil suspending agent, water suspending agent and colloidal agent.
The weeding composition is preferably an aqueous agent, and can quickly form a medicinal film by being diluted by water before use and then sprayed on a target. The weeding composition disclosed by the invention is strong in systemic conductivity, and the effect duration is prolonged, so that the utilization rate of the agent is high, the dosage of the agent is reduced, and the environment-friendly effect is more remarkable.
The herbicidal composition is used in an effective amount of 50 to 150g (a.i.)/ha, preferably 60 to 120g (a.i.)/ha, 65 to 115g (a.i.)/ha, more preferably 75 to 100g (a.i.)/ha, for example 85g (a.i.)/ha, 90g (a.i.)/ha, 95g (a.i.)/ha.
The herbicidal compositions according to the present invention may be provided in the form of a finished formulation, i.e. the ingredients of the composition have been mixed, or the ingredients of the composition may be provided in a single dose, mixed directly in a tank or tank prior to use and then diluted to the desired concentration.
In the weeding composition, the refined glufosinate-ammonium contains carboxyl, hydroxyl, amino and phosphonyl in a molecular structure, and the 2-methyl-4-chlorine contains carboxyl, ether bond and-Cl in a molecular structure, so that the active ingredient and a compound auxiliary agent, such as ether bond in tallow amine polyoxyethylene ether, a plurality of ether bonds and ester groups in lignosulfonate, alkyl naphthalene formaldehyde condensate sodium sulfonate or polyoxyethylene sorbitan monolaurate, can form a three-dimensional net hydrogen bond structure, can be better attached to the surface of a plant and penetrate through a waxy layer of the epidermis of the plant, the absorption efficiency of a medicament is improved, the weeding rate is improved, and the prevention rate is improved. Because the refined glufosinate-ammonium, the 2-methyl-4-chlorine, the lignosulfonate, the tallow fatty amine polyoxyethylene ether, the alkyl naphthalene formaldehyde condensate sodium sulfonate or the polyoxyethylene sorbitan monolaurate have excellent water solubility and biodegradability, the weeding effect can be improved.
The weeding composition can be used for preventing and controlling weeds in cultivated land and non-cultivated land by compounding the refined glufosinate-ammonium and the 2-methyl-4-chloro compound. Especially for perennial grassy weeds, broad-leaved weeds and sedge weeds, the weeding composition has obviously better control effect at lower temperature.
Furthermore, by combining the refined glufosinate-ammonium, the 2-methyl-4-chloro and the specific compound auxiliary agent, the contact mode of the medicine liquid drops and the surface of the plant is improved, and the conduction efficiency is improved. Therefore, the specific combination of the glufosinate-ammonium, the 2-methyl-4-chloro and the compound auxiliary agent further improves the weeding efficiency of the weeding composition.
Examples
The composition of the invention takes the refined glufosinate-ammonium as an active ingredient (A) and 2-methyl-4-chloro as an active ingredient (B) to form binary compounding, and the combination of the two components has obvious synergistic effect on weed control.
Indoor toxicity test
The determination method comprises the following steps: an indoor pot culture method, wherein herba Monochasmatis and Alternanthera philoxeroides are subjected to stem and leaf treatment by using a spray tower. Determining fresh weight inhibition rate 20d after medicine application, and calculating ED50Value and co-toxicity coefficient, and the herbicidal activity of the agent is evaluated.
The method for evaluating the binary herbicide combined action mode by using the Sun Yunpei co-toxicity coefficient method has the following formula:
in the formula:
ATI-measured toxicity index of mixed agent;
S-ED 50/90 for standard agents;
M-ED 50/90 in admixture;
TTI＝A×PA+B×PB
in the formula:
TTI-theoretical virulence index of the mixture;
A-A agent virulence index;
B-B agent virulence index;
the percentage content of the PA-A medicament in the mixture;
the percentage content of the PB-B medicament in the mixture;
in the formula:
CTC-co-toxicity coefficient;
ATI-measured toxicity index of mixed agent;
TTI-theoretical virulence index of the mixture.
And (3) judging standard: CTC > 120 is synergistic; CTC less than 80 is antagonistic; 80 < CTC < 120 is additive.
The combination of glufosinate-ammonium and 2-methyl-4-chloro was tested according to the indoor toxicity test described above, and the co-toxicity coefficient was calculated according to the grandsinope co-toxicity coefficient method, and the results are shown in tables 1 and 2.
TABLE 1 toxicity test results of refined glufosinate-ammonium and 2-methyl-4-chloro binary-compound-pairing monochoria vaginalis fresh weight
TABLE 2 toxicity test results of binary combination of glufosinate-ammonium and 2-methyl-4-chloro-p-alternanthera philoxeroides
As can be seen from the toxicity test results of the binary complex reagent of glufosinate-ammonium and 2-methyl-4-chloro shown in the tables 1 and 2, the binary complex reagent of glufosinate-ammonium and 2-methyl-4-chloro has a co-toxicity coefficient of more than 120 in a specific weight ratio range for the monochoria vaginalis and the alligator alternanthera respectively, and has a remarkable synergistic effect.
Preparation of (di) refined glufosinate-ammonium + 2-methyl-4-chlorine binary compound preparation
Example 160% aqueous solution (10% glufosinate-ammonium + 2% methyl-4-chloro 50%)
Dissolving 10% of refined glufosinate-ammonium and 50% of 2-methyl-4-chloro in partial water, adding 20% of sodium lignosulfonate, 2% of sodium dodecyl naphthalene formaldehyde condensate sulfonate and the rest water to make up to 100%, adding the mixture into a blending kettle, and uniformly stirring to obtain the refined glufosinate-2-methyl-4-chloro water agent.
Example 240% aqueous solution (refined glufosinate-ammonium 36% +2 methyl-4-chloro-4%)
Dissolving 36% of refined glufosinate-ammonium and 4% of 2-methyl-4-chloro in water, adding 5% of sodium lignosulfonate, 15% of sodium dodecyl naphthalene formaldehyde condensate and the balance of water to make up to 100%, adding the mixture into a blending kettle, and uniformly stirring to obtain the refined glufosinate-2-methyl-4-chloro water agent.
Example 324% aqueous solution (refined glufosinate-ammonium 12% +2 methyl-4-chloro 12%)
Dissolving 12% of refined glufosinate-ammonium and 12% of 2-methyl-4-chloro in water, adding 15% of tallow amine polyoxyethylene ether, 1% of polyoxyethylene sorbitan monolaurate and the rest water to make up to 100%, adding the materials into a blending kettle, and uniformly stirring to obtain the refined glufosinate-2-methyl-4-chloro water agent.
EXAMPLE 411% aqueous solution (1% +2 methyl 4 chloro 10% glufosinate ammonium)
Dissolving 1% of refined glufosinate-ammonium and 10% of 2-methyl-4-chloro in water, adding 2% of tallow amine polyoxyethylene ether, 10% of polyoxyethylene sorbitan monolaurate and the balance of water to make up to 100%, adding the materials into a blending kettle, and uniformly stirring to obtain the refined glufosinate-2-methyl-4-chloro water agent.
Comparative example 1
Dissolving 36% of refined glufosinate-ammonium and 4% of 2-methyl-4-chloro in water, adding 20% of sodium dodecyl naphthalene formaldehyde condensate sulfonate and the rest water to make up to 100%, adding the mixture into a blending kettle, and uniformly stirring to obtain the refined glufosinate-2-methyl-4-chloro water aqua.
Comparative example 2
Dissolving 36% of refined glufosinate-ammonium and 4% of 2-methyl-4-chloro in water, adding 20% of sodium lignosulphonate and the balance of water to make up to 100%, adding the materials into a blending kettle together, and stirring uniformly to obtain the refined glufosinate-2-methyl-4-chloro water agent.
Comparative example 3
Dissolving 40% of refined glufosinate-ammonium in water, adding 5% of sodium lignosulfonate, 15% of sodium dodecyl naphthalene formaldehyde condensate and the rest water to make up to 100%, adding the components into a blending kettle together, and stirring uniformly to obtain the refined glufosinate-ammonium aqua.
Comparative example 4
Dissolving 40% of 2-methyl-4-chloro in water, adding 5% of sodium lignosulfonate, 15% of sodium dodecyl naphthalene formaldehyde condensate and the rest water to make up to 100%, adding the components into a blending kettle together, and uniformly stirring to obtain the 2-methyl-4-chloro water agent.
Comparative example 5
Dissolving 12% of refined glufosinate-ammonium and 12% of 2-methyl-4-chloro in water, adding 16% of tallow amine polyoxyethylene ether and the rest water to make up to 100%, adding the materials into a blending kettle together, and stirring uniformly to obtain the refined glufosinate-2-methyl-4-chloro water aqua.
Comparative example 6
Dissolving 12% of refined glufosinate-ammonium and 12% of 2-methyl-4-chloro in water, adding 16% of polyoxyethylene sorbitan monolaurate and the rest water to make up to 100%, adding the mixture into a blending kettle, and stirring uniformly to obtain the refined glufosinate-2-methyl-4-chloro aqueous solution.
(III) test of drug efficacy
The test method comprises the following steps: the test was conducted in a laboratory transplantation laboratory, and predetermined amounts of each drug were weighed according to the area of the test area, and the spray treatment was repeated 3 times for each dose treatment. The medicine is applied at 15 ℃ and 30 ℃ respectively, the fresh weight of each treatment area is weighed after 15 days, and the fresh weight control effect is calculated. The results are shown in Table 3.
TABLE 3 Effect of Alternanthera philoxeroides
As can be seen from the data in table 3, according to the refined glufosinate-2-methyl 4 chloride binary compound preparation of the embodiments 1 to 4 of the present invention, in combination with a specific active ingredient ratio and a specific ratio of the compound auxiliary agent, the synergistic effect of the refined glufosinate and the 2-methyl 4 chloride active ingredient combination and the compound auxiliary agent sodium lignosulfonate and sodium dodecylnaphthalene formaldehyde condensate or polyoxyethylene tallow amine and polyoxyethylene sorbitan monolaurate is utilized, and the control effect of the compound preparation on alternanthera philoxeroides can be significantly improved, especially, the good low-temperature control effect is ensured at a low dose of 50 to 150g a.i./ha.
The agents of comparative examples 1 to 6, which do not contain the specific combination of ingredients in the above specific ratio, are significantly inferior to the respective agents of the examples of the present invention in the low-temperature controlling effect on alternaria barbata.
Claims (9)
1. The weeding composition is characterized by comprising an active ingredient A and an active ingredient B, wherein the active ingredient A is glufosinate-ammonium, the active ingredient B comprises 2-methyl-4-chloro, and the weight ratio of the active ingredient A to the active ingredient B is 80: 1-1: 20.
2. A herbicidal composition according to claim 1, wherein the weight percentage of active ingredient a and active ingredient B is 10 to 60% based on the total weight of the herbicidal composition.
3. A herbicidal composition according to claim 1 or 2, wherein the effective amount of the herbicidal composition is 50 to 150g (a.i.)/ha.
4. A herbicidal composition according to claim 1 or 2, wherein the herbicidal composition comprises, based on the total weight of the herbicidal composition: 1-50% of refined glufosinate-ammonium, 1-15% of 2-methyl-4-chloro and 3-40% of composite auxiliary.
5. The herbicidal composition of claim 4, wherein the herbicidal composition comprises, based on the total weight of the herbicidal composition: 1-50% of refined glufosinate-ammonium, 1-15% of 2-methyl-4-chloro, 1-25% of lignosulfonate, 2-10% of alkyl naphthalene formaldehyde condensate sodium sulfonate and the balance of water.
6. The herbicidal composition of claim 4, wherein the herbicidal composition comprises, based on the total weight of the herbicidal composition: 1-50% of refined glufosinate-ammonium, 1-15% of 2-methyl-4-chloro, 3-18% of tallow amine polyoxyethylene ether, 5-15% of polyoxyethylene sorbitan monolaurate and 20-50% of water.
7. A herbicidal composition according to claim 1 or 2, wherein the herbicidal composition further comprises one or more adjuvants selected from the group consisting of fillers, emulsifiers, thickeners, antifreeze agents, dispersants, binders, stabilizers, safeners and synergists.
8. The herbicidal composition according to claim 1 or 2, wherein the formulation of the herbicidal composition is selected from the group consisting of aqueous agents, wettable powders, dusts, granules, microemulsions, aqueous emulsions, oil suspensions, aqueous suspensions and colloids.
9. Use of the herbicidal composition according to any one of claims 1 to 8 for controlling weeds.
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| CN115428794A (en) * | 2021-12-20 | 2022-12-06 | 南宁市德丰富化工有限责任公司 | A herbicidal composition containing 2,4-D acid and refined glufosinate-ammonium |
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