Penoxsulam-oxadiargyl compound dispersible oil suspended agent, and preparation method thereof

Abstract

The invention discloses a penoxsulam-oxadiargyl compound dispersible oil suspended agent, and a preparation method thereof, and belongs to the technical field of prevention of annual weed in transplanted rice fields. 100 parts of the penoxsulam-oxadiargyl compound dispersible oil suspended agent is prepared from at least 5 parts of penoxsulam, 10 parts of oxadiargyl, 6 parts of sodium methylene bis-naphthalene sulfonate, 2 parts of xanthan gum, 2 parts of ammonium lauryl sulfate, 15 parts of emulsifying agent 602, and the balance methyl oleate. The preparation method comprises following steps: the raw materials are pumped into a preparing vessel for mixing stirring, are subjected to preliminary grinding using a colloid mill, and are subjected to fine grinding using a sand mill; sampling analysis is carried out; and a qualified product is subjected to filtering, weighing, and packaging, and then is put in storage. The 15% penoxsulam-oxadiargyl compound dispersible oil suspended agent prepared at a penoxsulam / oxadiargyl ratio of 1:2 is capable of achieving obvious synergistic effect in preventing annual weed in transplanted rice fields, and the penoxsulam-oxadiargyl compound dispersible oil suspended agent prepared at other penoxsulam / oxadiargyl ratio is not capable of achieving obvious synergistic effect.

Description

technical field [0001] The invention relates to the technical field of annual weed control in rice transplanting fields, in particular to a penoxsulam-propargyl oxadiazone compound dispersible oil suspension 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 Moshangcai, yanzicai, bermudagrass, and knotweed, for example, Chinese patent CN 102283214 A discloses a " The herbicidal composition of fenoxyfen", the herbicidal composition contains 1-50% of active ingredient A bispyribac, 1-70% of active ingredient B, auxiliary agent and other excipients, and the active ingredient B is selected from the group consisting of: promethazine and clofenac Grass pine and oxadiazone can be made into wettable powder, water dispersible granule, suspension concentrate, suspoemulsion, microemulsion, and water emulsion. Another Chinese patent CN 101926350 A disc...

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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