Mesosulfuron and clodinafop-propargyl compound dispersible oil suspending agent and preparation method thereof

Abstract

The invention discloses a mesosulfuron and clodinafop-propargyl compound dispersible oil suspending agent and a preparation method thereof and relates to the technical field of control of weeds in a wheat field. The mesosulfuron and clodinafop-propargyl compound dispersible oil suspending agent is prepared from 3 parts of mesosulfuron, 21 parts of clodinafop-propargyl, 3 parts of fatty alcohol-polyoxyethylene ether, 5 parts of styrylphenol polyoxyethylene ether, 0.5 part of xanthan gum, 0.3 part of sodium benzoate, 0.5 part of defoamer and 66.7 parts of deionized water. The preparation method comprises the following steps of pumping the raw materials into a preparation reactor for mixing and stirring; primarily grinding the raw materials by a colloid mill, and then finely grinding by a sand grinder; sampling and analyzing; after the mixture is qualified, filtering, metering, packaging and warehousing. According to the mesosulfuron and clodinafop-propargyl compound dispersible oil suspending agent, when being prepared by mixing and compounding to be 24 percent according to the proportion of 1:7, an obvious synergistic effect range can be reached, which cannot be realized by preparations mixed according to other proportions.

Description

technical field [0001] The invention relates to the technical field of weed prevention and control in wheat fields, in particular to a dispersible oil suspending agent compounded with mesosulfuron-methyl and clodinafop-propargyl and a preparation method thereof. Background technique [0002] At present, the existing herbicidal compositions used for the control of weeds in wheat fields such as A. japonica and bluegrass, for example, the Chinese patent "CN103404528A" discloses a "methylsulfuron-methyl compound herbicide", which is effective The active ingredients are disulfuron-methyl and acesulfame or florasulam, and the ratio of the two is 1:20-20:1. Another Chinese patent "CN102792960A" discloses a "herbicide composition containing sulfasulfuron-methyl and rimsulfuron-methyl", in which the effective active ingredients are rimsulfuron-methyl and rimsulfuron-methyl, both The matching ratio is 1:15~10:1. [0003] The inventor has verified through long-term experiments that t...

AI Technical Summary

Problems solved by technology

For example, the prepared dispersible oil suspension concentrate is easy to cause the product to stick, it is not easy to disperse and suspend in water, or to block the nozzle, and to settle in the sprayer, etc., resulting in uneven spraying and local phytotoxicity of the crops. There are different defects in the selection of additives and fillers

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

Images