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Herbicide mixture and its preparation method and application method

A herbicide and solvent technology, applied in the field of compound herbicides and their preparation, can solve the problems of incomplete dead weeds and phytotoxicity of wheat, and achieve the effects of good product effect, low control cost and unique mechanism of action

Inactive Publication Date: 2012-05-09
HUAZHONG NORMAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mefentrazone used alone often causes phytotoxicity to wheat. Due to its contact killing effect, the weeds are not completely dead.

Method used

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  • Herbicide mixture and its preparation method and application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Get 1% of clofenac, 1% of mefentrazone,

[0028] Emulsifier 500#12%, make up to 100% with solvent, and make 2% emulsifiable concentrate through mixing process.

Embodiment 2

[0029] Example 2: Take 1% of chlorfenac, 20% of mefentrazone, 2% of wetting agent, and 8% of dispersing agent, make up to 100% with diatomaceous earth, mix and pulverize to make 21% wettable powder.

Embodiment 3

[0030] Example 3: Take 30% of chlorfenox, 2% of mefentrazone, 2% of wetting agent, and 8% of dispersing agent, make up to 100% with kaolin, and make 32% by mixing, pulverizing, granulating, drying, etc. Water dispersible granules.

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PUM

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Abstract

The invention provides a herbicide mixture and its preparation method and application method. The herbicide mixture comprises, in mass percent, 1 to 75% of clacyfos, 1 to 20% of carfentrazone-ethyl and an accessory. The preparation method is to mix and process 1 to 75 parts by weight of clacyfos, 1 to 20 parts by weight of carfentrazone-ethyl and the balance of the accessory. The herbicide mixture is applied when wheat is in a period from trefoil stage before winter or from returning green stage to jointing stage and when broadleaf weeds are in a seedling stage. The invention relates to the clacyfos and carfentrazone-ethyl binary herbicide mixture used for controlling broadleaf weeds in wheat fields and its preparation method and application method; the herbicide mixture in the invention has the advantages of a simple production process, a good effect, broad weed control spectrum, special efficacy on broadleaf weeds, no harm to wheat, no influence on succeeding crops, low control cost, convenient usage and capacity of reducing pollution to environment and influence on health of human bodies.

Description

technical field [0001] The invention relates to a field herbicide used for crops and a preparation method and a use method thereof, in particular to a compound herbicide and a preparation method and a use method thereof. Background technique [0002] Chlorylglufosinate was developed and developed by He Hongwu of Central China Normal University and others, and promoted and applied by Shandong Qiaochang Chemical Co., Ltd. It is a new type of herbicide with independent intellectual property rights in my country, which belongs to substituted phenoxyacetyl hydroxyphosphonic acid ester compounds. Chlorophosphoric acid has the advantages of high activity, broad herbicidal spectrum, systemic property, etc., and has the characteristics of low toxicity, low residue, and safety to the ecological environment. However, glufosinate alone has unavoidable disadvantages, such as: poor effect on certain vicious weeds, such as pig scorpion and wheatgrass; the weed killing speed is relatively s...

Claims

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Application Information

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IPC IPC(8): A01N57/22A01N43/653A01P13/00
Inventor 贺红武王春源谭效松张双应张海娟丁继鹏杨开峰彭浩张连举马超
Owner HUAZHONG NORMAL UNIV
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