Aminopyralid and clopyralid compounding aqueous agent and preparation method thereof

Abstract

The invention provides an aminopyralid and clopyralid compounding aqueous agent and a preparation method thereof, and relates to the technical field of prevention and control of annual broadleaf weeds in brassica campestris fields, wherein the aminopyralid and clopyralid compounding aqueous agent is prepared from 6 parts by weight of aminopyralid, 24 parts by weight of clopyralid, 3 parts by weight of fatty alcohol polyoxyethylene ether, 5 parts by weight of styryl phenol polyoxyethylene ether, and 62 parts by weight of deionized water. The preparation method comprises: pumping all raw materials into a preparing kettle, carrying out mixing stirring, carrying out primary grinding through a colloid mill, carrying out fine grinding through a sand mill, sampling and analyzing, filtering after qualifying, metering, packaging, and warehousing. According to the present invention, the aminopyralid and clopyralid compounding aqueous agent provides excellent prevention and control effects on annual broadleaf weeds in brassica campestris fields, the significant synergetic effect of the aminopyralid and the clopyralid can be achieved, the suspension rate, the persistent foaming property, the wet sieve test, the thermal storage stability and other performances of the aminopyralid and clopyralid compounding aqueous agent are significantly superior to the performances of the products prepared according to other ratios, and the significant synergetic effect can be provided when the compounded 30% aminopyralid and clopyralid compounding aqueous agent according to a ratio of 1:4 is subjected to mixing use.

Description

Technical field [0001] The invention relates to the technical field of annual broadleaf weed control in rape fields, and specifically to a compound aqueous agent of clopyralid and clopyralid and a preparation method thereof. Background technique [0002] Currently, there are existing herbicides used to control annual broadleaf weeds in rape fields. For example, the Chinese patent "CN104381296A" discloses a "herbicidal composition containing clopyralid and glyphosate", using a weight ratio of 1:5~5:1 compound of amlopyralid and glyphosate. Another Chinese patent "CN102326557A" discloses a "herbicidal composition containing mefenacetate and clopyridinic acid", which uses clopyridinic acid and clopyridinic acid in a mass ratio of 0.1 to 80:0.1 to 80 for compounding. match. [0003] The inventor has verified through long-term experiments that the above-mentioned herbicidal compositions mainly have the following defects: [0004] 1) By testing several specific ratios disclosed...

AI Technical Summary

Problems solved by technology

For example, wettable powder is easy to cause product sticking, is not easy to disperse and suspend in water, or clogs the nozzle, and causes precipitation in the sprayer, resulting in uneven spraying

[0006] 3), compounding problem, by carrying out toxicity test, thermal storage stability test and mixing co-toxicity coefficient measurement to several specific proportions disclosed by the above-mentioned several herbicidal compositions, it is found that no obvious synergistic effect can be achieved

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