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A kind of mixed herbicide comprising diflufenamide and amfentrazone and its preparation method

A technology of diflufenapyr and amiflufen, which is applied in the field of preparation of mixed herbicides, can solve the problems of limited herbicidal spectrum and potential safety hazards of pure herbicides, and achieves reduction of pesticide dosage, high safety, and herbicidal effects. The effect of spectral width

Active Publication Date: 2016-05-04
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of limited herbicide spectrum and potential safety hazards in the prior art, and provide a highly efficient and safe mixed herbicide

Method used

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  • A kind of mixed herbicide comprising diflufenamide and amfentrazone and its preparation method
  • A kind of mixed herbicide comprising diflufenamide and amfentrazone and its preparation method
  • A kind of mixed herbicide comprising diflufenamide and amfentrazone and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] According to the conventional preparation production method, the mass percentage of the finally obtained mixed herbicide is measured, taking 70% of diflufenican and 5% of amfentrazone, adding agricultural adjuvant: 6% of sodium methylene bis-tetrasulfonate, Sodium lignosulfonate 5%, mix evenly, and add kaolin continuously during the stirring process, so that the mass ratio of the whole mixture reaches 100%, and according to the general steps, the mixed mass ratio of diflufenican and amfentrazone is 75% wettable powder herbicide blend.

Embodiment 2

[0031] According to the conventional preparation production method, measured by the mass percentage of the finally obtained mixed herbicide, take 15% diflufenican, 5% amfenflumele, add agricultural auxiliaries: 3% alkylphenol polyoxyethylene ether, castor Sesame oil polyoxyethylene ether 2%, xanthan gum 0.1%, xylene 20%, ethylene glycol 5%, mix well, and add water continuously during the stirring process, so that the mass ratio of the whole mixture reaches 100%, and according to the general The step is to form a water-emulsion mixed herbicide in which the mixed mass ratio of diflufenican and amfentrazone is 20%.

Embodiment 3

[0033] According to the conventional preparation production method, the mass percentage of the finally obtained mixed herbicide is measured, taking 50% of diflufenican, 20% of amfenflumele, adding agricultural auxiliaries: 5% of sodium lignosulfonate, dodecane Base sulfate 2%, ammonium sulfate 5%, mix well, and add kaolin continuously during the stirring process, so that the mass ratio of the whole mixture reaches 100%, and follow the general steps to form a mixture of diflufenamide and amfentrazone A water-dispersible granular mixed herbicide with a mass ratio of 70%.

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Abstract

The invention belongs to the technical field of chemical synthesis and provides a mixed herbicide containing two active ingredients, namely diflufenican and amicarbazone, and a preparation method and an application of the mixed herbicide. Mass ratio of diflufenican to amicarbazone in the mixed herbicide is 1-70:1-20. The total mass of diflufenican and amicarbazone is 6-75% of the mass of the herbicide. By the use of the mixed herbicide, various grasses and broadleaved weeds in corn fields can be controlled and eliminated. The mixed herbicide provided by the invention has advantages of high herbicidal activity, wide herbicidal spectrum, long persistent period, high safety, efficient broad spectrum and good environmental compatibility, is safe to human and livestock, and is an excellent chemical herbicide for the corn crop.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a mixed herbicide comprising two active ingredients of diflufenican and amfentrazone, and a preparation method and application of the mixed herbicide. Background technique [0002] Diflufenican, chemical name: N-(2,4-difluorophenyl)-2-[(3-trifluoromethyl)phenoxy]-3-pyridineanilide. The drug is a carotenoid biosynthesis inhibitor. The content of carotenoids in the weed plants that absorb the drug decreases, resulting in the destruction of chlorophyll and cell rupture. The weeds appear as discolored or white young shoots, and finally the plants wilt and die. Mainly used in corn, soybean and wheat fields to control a variety of annual grass weeds and some broad-leaved weeds. Especially for the removal of pig's calamity and mother-in-law. [0003] Amicarbazone is a triazolinone herbicide, chemical name: 4-amino-5-oxo-3-isopropyl-N-tert-butyl-1,2,4-triazole-1 - Formamide. It is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/653A01P13/00A01N43/40
Inventor 程青云彭永强郭崇友张宝俊高瑞花
Owner NANJING HUAZHOU PHARMA
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