Oxadiazon-triafamone compounded suspending agent and preparation method thereof

Abstract

The invention provides an oxadiazon-triafamone compounded suspending agent and a preparation method thereof and relates to the technical field of prevention and control of annual weeds in transplanting paddy fields. The oxadiazon-triafamone compounded suspending agent is at least prepared from the following components in parts by weight (100 parts in total): 33 parts of oxadiazon, 3 parts of triafamone, 3 parts of fatty alcohol-polyoxyethylene ether, 3 parts of styrylphenol polyoxyethylene ether, 0.3 part of xanthan gum, 0.4 part of sodium benzoate, 0.3 part of a defoaming agent and the balance of deionized water. The preparation method comprises the following steps of: extracting all the raw materials into a preparation kettle, mixing, stirring, carrying out primary grinding by virtue of a colloid mill, carrying out fine grinding by virtue of a sand mill, carrying out sampling and analysis, and after the sample is qualified, carrying out filtration, measurement, packaging and warehousing. According to the preparation method, the compounded suspending agent including 36% of oxadiazon and triafamone in a ratio of 11 to 1 has the effect of effectively expanding the action range, but preparations blended in other proportions do not have the effect.

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 oxadiazone and flunmezone-sulfentrazone and a preparation method thereof. Background technique [0002] At present, the existing herbicidal composition for preventing and treating annual weeds in transplanted rice fields, for example, Chinese patent CN104886099 A discloses a "paddy field herbicidal composition", which consists of active ingredients A, B and suitable pesticide adjuvants , wherein the active ingredient A is Fluoxaflun-methyl, and the active ingredient B is selected from one of promethazone-methyl, pyrazosulfuron-methyl, and chlorpyrazosulfuron-methyl; the weight of the active ingredients A and B in the composition The ratio is 10:1-1:10, the weight percentage of the sum of active ingredients A and B in the composition is 0.1%-90%, and the rest is pesticide adjuvants. Another...

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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