Pinoxaden and clodinafop-propargyl compound emulsifiable oil and preparation method thereof

Abstract

The invention discloses pinoxaden and clodinafop-propargyl compound emulsifiable oil and a preparation method thereof, and relates to the technical field of prevention and control on annual weeds in winter wheat fields. The pinoxaden and clodinafop-propargyl compound emulsifiable oil is at least prepared from 2.5 parts of pinoxaden, 5 parts of clodinafop-propargyl, 7.5 parts of tristyrylphenol polyoxyethylene ether, 7.5 parts of distyrylphenol formaldehyde condensate polyoxyethylene ether, 15 parts of calcium dodecyl benzene sulfonate and the balance xylene which complements the materials to 100 parts. The preparation method comprises the steps that pinoxaden and clodinafop-propargyl are added into xylene to be stirred until pinoxaden and clodinafop-propargyl are completely dissolved, the remaining materials are added and then stirred and mixed to be uniform through a reaction kettle, sampling is performed to analyze the content, standing, filtering, packaging and secondary sampling for content analyzing are performed after a sample is qualified, and warehousing is performed after a second sample is qualified. Accordingly, when the compound pinoxaden and clodinafop-propargyl compound emulsifiable oil with the concentration of 7.5% is blended according to the proportion of 1:2, the obvious synergistic effect can be achieved, and preparations blended with the other proportions cannot achieve the obvious synergistic effect.

Description

technical field [0001] The invention relates to the technical field of annual weed prevention and control in winter wheat fields, in particular to a compound emulsifiable concentrate of pinoxaden and clodinafop-propargyl and a preparation method thereof. Background technique [0002] At present, there are existing herbicidal compositions used for the control of annual weeds in winter wheat fields such as sage and brome, for example, the Chinese patent "CN102283217A" discloses a "herbicidal combination containing florasulam and pinoxaden "Material", wherein the active ingredients are florasulam and pinoxaden, and the ratio of the two is 1-60%: 1-60%. Another Chinese patent "CN102326562A" discloses a "herbicidal composition containing mefentrazone and pinoxaden", in which the effective active ingredients are mefentrazone and pinoxaden, and the ratio of the two is 1-60 %: 1 to 60%. [0003] The inventor has verified through long-term experiments that the above-mentioned sever...

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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 s

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