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Herbicide composition containing glyphosate, MCPA (2-methyl-4-chloro-phenoxyacetic acid) and carfentrazone-ethyl

A glyphosate and herbicide technology, applied in the field of herbicide compositions containing glyphosate, 2-methyl-4-chlor and fenflumezone, can solve the problem of aggravating herbicide residues, slow weeding speed of glyphosate, and limited efficacy To achieve the effect of reducing the amount and frequency of use, delaying the emergence of resistant individuals, and increasing the speed of weeding

Inactive Publication Date: 2014-01-22
GUANGXI SANJING CHEM SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Imperata cottage, ghost needle grass, iron mango, goosegrass, and small fly canopy are common weeds in a variety of crop fields, woodlands, and non-cultivated land, and glyphosate, 2-methyl-4-chlor or mefentrazone alone cannot At the same time, it can effectively control these weeds. To achieve the desired control effect, the only way to increase the amount of pesticides is to apply
However, achieving the control effect by increasing the dosage will inevitably increase the herbicide residue, cause phytotoxicity to crops and increase the cost of control
Moreover, in practical application, the herbicide speed of using glyphosate alone is slow, and it is easily affected by bad weather such as low temperature and rainfall, which limits the efficacy of the drug.
In addition, long-term use of a single herbicide often leads to the emergence of weed resistance, thereby reducing the control effect of herbicides

Method used

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  • Herbicide composition containing glyphosate, MCPA (2-methyl-4-chloro-phenoxyacetic acid) and carfentrazone-ethyl
  • Herbicide composition containing glyphosate, MCPA (2-methyl-4-chloro-phenoxyacetic acid) and carfentrazone-ethyl
  • Herbicide composition containing glyphosate, MCPA (2-methyl-4-chloro-phenoxyacetic acid) and carfentrazone-ethyl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1 (32.1% glyphosate · 2 methyl 4 chloride · fentrazone wettable powder):

[0034] By weight percentage, glyphosate potassium salt (calculated as glyphosate) 30%, 2-methyl-4-chloride sodium (calculated as 2-methyl-4-chloride) 2%, fenflumezone 0.1%, calcium lauryl sulfate 3 %, sodium lignosulfonate 7%, sodium methylene bis-naphthalene sulfonate 2%, and the balance is light calcium carbonate.

[0035] According to the conventional pesticide preparation processing technology, according to the above formula, glyphosate, 2-methyl-4-chloride, fenflumezone, calcium lauryl sulfate, sodium lignin sulfonate, sodium methylene bis-naphthalene sulfonate, light calcium carbonate Add it into a mixer in turn and mix thoroughly, and the uniformly mixed material is put into a jet mill and pulverized until the fineness reaches 325 mesh, and a wettable powder of the composition with an active ingredient content of 32.1% is obtained.

Embodiment 2

[0036] Embodiment 2 (65% glyphosate · 2 methyl 4 chlorine · fentrazone wettable powder):

[0037] By weight percentage, glyphosate ammonium salt (calculated as glyphosate) 45%, 2-methyl-4-chloride potassium salt (calculated as 2-methyl-4-chloride) 10%, fenflutrazone 15%, sodium lauryl sulfate 2%, sodium lignosulfonate 3%, sodium lauryl ether sulfate 1%, and the balance is light calcium carbonate.

[0038] According to the above formula, add glyphosate, 2-methyl-4-chloride, fenflutrazone, sodium lauryl sulfate, sodium lignosulfonate, sodium lauryl ether sulfate, and light calcium carbonate into the mixer in turn and mix thoroughly. The homogenized material was put into a jet mill and pulverized until the fineness reached 325 mesh, and a composition wettable powder with an active ingredient content of 65% was obtained.

Embodiment 3

[0039] Embodiment 3 (66% glyphosate · 2 methyl 4 chlorine · fentrazone wettable powder):

[0040] By weight percentage, glyphosate sodium salt (calculated as glyphosate) 35.8%, 2-methyl-4-chloride sodium salt (calculated as 2-methyl-4-chloride) 30%, fenflumezone 0.2%, sodium lauryl sulfate 5%, calcium lignosulfonate 3%, sodium butylnaphthalene sulfonate 2%, and the balance being kaolin.

[0041] According to the conventional pesticide preparation processing technology, according to the above formula, add glyphosate, 2-methyl-4-chlor, fentrazone, sodium lauryl sulfate, sodium lignin sulfonate, sodium butylnaphthalene sulfonate, and kaolin into the mixer in sequence Mix well in the medium, and the uniformly mixed material is put into a jet mill and pulverized until the fineness reaches 325 mesh, and a composition wettable powder with an active ingredient content of 66% is obtained.

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Abstract

The invention discloses a herbicide composition containing glyphosate, MCPA (2-methyl-4-chloro-phenoxyacetic acid) and carfentrazone-ethyl. The herbicide composition is characterized in that the pesticide active ingredients of the composition are glyphosate or salts thereof, MCPA or salts or esters thereof and carfentrazone-ethyl; based on the herbicide composition, the weight percent of the pesticide active ingredients is 31.1-85%, wherein the weight percent of the glyphosate or salts thereof is 30-70%, the weight percent of the MCPA or salts or esters thereof is 1-30%, the weight percent of the carfentrazone-ethyl is 0.1-20% and the balance is non-pesticide ingredients. The dosage forms of the herbicide composition are wettable powder, water dispersible granules, soluble powder, soluble granules, aqueous solutions, emulsion in water and microemulsion. The composition has the advantages that after compounding, the herbicide composition has obvious synergistic effects, expands the weed control spectrum, increases the weed control speed, obviously reduces the usage amount and numbers of use of herbicides and can be applied to controlling imperata cylindrica, Bidens pilosa, dicranopteris dichotoma, eleusine indica, erigeron canadensis and other weeds in arable lands and non-arable lands.

Description

technical field [0001] The invention belongs to the technical field of agricultural herbicides, and in particular relates to a herbicide composition, especially a herbicide combination with glyphosate or its salt, 2-methyl-4-chlor or its salt or its ester, and mefentrazone as active ingredients The herbicide composition can be applied to control weeds such as Imperata cylindrica, Bidens pilosa, Dicranopteris dichotoma, Eleusine indica, Erigeron canadensis and the like. technical background [0002] Glyphosate is also known as Roundup and Zhencaoning. The English common name is glyphosate, CA registration number: 1071-83-6, and the chemical name is N-(phosphomethyl)glycine. Molecular formula C 3 h 8 NO 5 P, molecular weight 169.09. It is an organophosphorus herbicide and a systemic herbicide absorbed by stems and leaves. It mainly inhibits enolacetonyl shikimelin phosphate synthase in the body, thereby inhibiting the conversion of shikime to phenylalanine and tyrosine An...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/20A01P13/00A01N39/04A01N43/653
Inventor 赖开平韦少平叶一强李致宝张丽娟韦茂春易芬远方峰梁子宁
Owner GUANGXI SANJING CHEM SCI & TECH
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