Cyhalofop-butyl and pyriftalid compound suspending agent and preparation method thereof

Abstract

The invention provides a cyhalofop-butyl and pyriftalid compound suspending agent and a preparation method thereof, and relates to the technical field of prevention and control of annual weeds in transplantation rice fields. According to the present invention, 100 parts of the cyhalofop-butyl and pyriftalid compound suspending agent is prepared at least from 10 parts of cyhalofop-butyl, 15 parts of pyriftalid, 3 parts of fatty alcohol polyoxyethylene ether, 3 parts of styrylphenol polyoxyethylene ether, 0.3 part of xanthan gum, 0.4 parts of sodium benzoate, 0.3 part of an anti-foaming agent, and the balance of deionized water; the preparation method comprises: sucking all raw materials into a preparation kettle, carrying out mixing stirring, carrying out primary grinding with a colloid mill, carrying out fine grinding with a sand mill, sampling and analyzing, filtering after achieving the qualified standard, metering, packaging, and warehousing; and the obvious synergistic effect can be provided when the 25% cyhalofop-butyl and pyriftalid compound suspending agent is subjected to mixing use according to the ratio of 2:3 while the obvious synergistic effect cannot be achieved with the other preparations being subjected to the mixing use according to a certain ratio.

Description

technical field [0001] The invention relates to the technical field of prevention and control of annual weeds in transplanted paddy fields, in particular to a compound suspending agent of cyhalofop-butyl and cyhalofop-ethyl and a preparation method thereof. Background technique [0002] At present, the existing herbicidal compositions for preventing and controlling annual weeds in transplanted paddy fields, for example, Chinese patent CN103975938 A discloses a "herbicidal composition for preventing and controlling annual weeds in paddy fields", the active ingredient of which is propyne Oxadiazone, pretilachlor and cyprosulfuron, the weight ratio of the oxadiazon, pretilachlor and cyprosulfuron is 1~50:1~80:1~40, propargyl oxazone The total weight percent content of oxalam, pretilachlor and cyprosulfuron in the composition is 0.1-85%. In addition, Chinese patent CN 103688969 A discloses a "herbicidal composition for controlling annual weeds in paddy fields". The weight perc...

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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