Oxadiazon and butralin compound missible oil and preparation method thereof

Abstract

The invention discloses oxadiazon and butralin compound missible oil and a preparation method thereof, and relates to the technical field of rice transplanting field annual gramineae weed and broad leaf weed control. The oxadiazon and butralin compound missible oil is at least prepared from 8 parts of oxadiazon, 24 parts of butralin, 7.5 parts of triphenylethylene phenol polyethenoxy ether, 7.5 parts of toluylene phenol-formaldehyde condensation compound polyethenoxy ether, 15 parts of calcium dodecyl benzene sulfonate and complemented 10 parts of xylene. The oxadiazon and the butralin are added into xylene to be stirred till thorough dissolution, then, remaining materials are added and stirred and mixed to be uniform through a reaction kettle, the content is sampled and analyzed, standing, filtering and packing are performed after qualification, the content is sampled and analyzed again, and storage is performed after qualification. The oxadiazon and butralin compound missible oil with the concentration being 32% compounded on the basis of the ratio being 1:3 can enlarge the obvious synergistic effect, and the oxadiazon and butralin compound missible oil compounded on the basis of other ratios cannot enlarge the obvious synergistic effect.

Description

technical field [0001] The invention relates to the technical field of prevention and control of annual gramineous weeds and broad-leaved weeds in rice transplanting fields, and in particular relates to a compound cream of oxadiazone and zhongbutazone and a preparation method thereof. Background technique [0002] At present, the existing herbicidal compositions used for the control of annual gramineous weeds and broad-leaved weeds in transplanted rice fields such as barnyard grass, purslane, and crabgrass, for example, Chinese patent "CN 101069507 A" discloses a "Herbicide combination", its components and weight percent are respectively 5-20% of clomazone, 30-60% of xylene, 20-40% of secbutaline and 5-15% of mixed emulsifier. In addition, Chinese patent "CN 101485319 A" discloses a "herbicidal composition", wherein oxadiazon and Zhongbutazone are used as active ingredients, and the weight ratio of the active ingredients is oxadiazon: Zhongbutazone=1: 0.5~ 50. [0003] The...

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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 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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