Simetryn, oxyfluorfen and butachlor complex missible oil and preparation method thereof

Abstract

The invention provides simetryn, oxyfluorfen and butachlor complex missible oil and a preparation method thereof, and relates to the technical field of prevention of annual weed in rice transplantation fields. The oil is prepared from 12 parts of simetryn, 8 parts of oxyfluorfen, 40 parts of butachlor, 3.75 parts of triphenylethylene-based phenol polyoxyethylene ether, 3.75 parts of toluylene-based phenol-formaldehyde condensate polyoxyethylene ether, 7.5 parts of calcium dodecylbenzene sulfona and 25 parts of xylene. Simetryn, oxyfluorfen and butachlor are added to xylene to be stirred and completely dissolved, the rest of the raw materials are then added, the mixture is evenly mixed by conducting stirring in a reaction kettle, sampling is conducted to analyze the content, standing, filtering and packaging are conducted after the content is qualified, sampling is conducted again to analyze the content, and storage is conducted after the content is qualified. The simetryn, oxyfluorfen and butachlor complex missible oil which is compounded by conducting blending according to the ratio of 3:2:10 and the content is 60%, the obvious synergism range can be achieved, and the obvious synergism effect can not be achieved through other preparations blended according to other ratios.

Description

technical field [0001] The invention relates to the technical field of annual weed prevention and control in rice transplanting fields, in particular to a compounded emulsifiable concentrate of siclofen, oxyfluorfen and butachlor and a preparation method thereof. Background technique [0002] At present, the existing herbicidal compositions used for the control of annual weeds in rice transplanting fields such as barnyardgrass, bermudagrass, moshangcai and yanzicai, for example, the Chinese patent "CN102461516A" discloses a "two-grass-containing A mixed herbicidal composition of ether and sigran and its application", wherein the effective active ingredients are bispyribac and sigran, and the ratio of the two is 0.1-99:0.1-99. Another Chinese patent "CN103931634A" discloses a "herbicide containing penoxsulam and its use", in which the effective active ingredients are penoxsulam, siclozin and 2-methyl-4-chlor or its derivatives, three The matching ratio is 1~10:1~50:1~50. ...

AI Technical Summary

Problems solved by technology

For example, the prepared 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, etc., resulting in uneven spraying and local phytotoxicity of crops. The main reason is that it helps There are different defects in the selection of agents 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

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