Weedicide prepared from oxyfluorfen and fluazifop-butyl binary combination and preparation method thereof

Abstract

The invention relates to a weedicide prepared from oxyfluorfen and fluazifop-butyl binary combination and a preparation method thereof. The weedicide is prepared from the following ingredients by mass percent: 3 to 10 percent of oxyfluorfen, 8 to 20 percent of fluazifop-butyl, 5 to 15 percent of surface active agent, 6 to 20 percent of emulsifying agent and the balance of solvent. The preparation method comprises the following steps: adding the solvent into the oxyfluorfen to be mixed and stirred according to the mass percent; adding the solvent into the fluazifop-butyl to be mixed and stirred; mixing and stirring the two solution; simultaneously taking and adding the emulsifying agent and the surface active agent into a reaction kettle to be stirred for 10 to 15 minutes; then, adding the balance solvent to be stirred for 20 to 30 minutes; and then, carrying out still standing, filtering, filling and sampling analysis to obtain finished products. The weedicide belongs to a high-efficiency broad-spectrum weedicide used in periods with four to six leaves of crop weeds for tea gardens, fruit tree gardens, grapes, tobacco, cabbages, hot peppers, potatoes, sweet potatoes, soybeans, flax, rubber, forestry nursery and the like, the application quantity is between 45 and 55g per mou, the goal of no crop smothering in the whole growing time of crops can be completely realized through one-setp weedicide application, and the weedicide application cost is 29.8 percent to 30.6 percent lower than that of single application of the oxyfluorfen and the fluazifop-butyl.

Description

technical field [0001] The invention relates to a herbicide and a preparation method thereof, in particular to a herbicide obtained by binary compounding of a diphenyl ether oxyfluorfen and a phenoxycarboxylic acid herbicide fenthide and a preparation method thereof. Background technique [0002] Oxyflufen is a contact herbicide that works in the presence of light. Pre-emergence and early post-emergence applications work best. Wenshade is a phenoxycarboxylic acid herbicide, which is effective in controlling annual weeds in dryland crops. However, the single application of the two kinds of single doses cannot achieve no weed damage in the whole growth period of crops. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the above-mentioned herbicides cannot reach the problem of no weed damage in the whole growth period of the crops with one application, and to provide a herbicide compounded with oxyfluorfen and fenzaide bina...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the above-mentioned herbicides cannot reach the problem of no weed damage in the whole growth period of the crops with one application, and to provide a herbicide compounded with oxyfluorfen and fenzaide binary compound and its preparation method. Abbreviated as "Baishechu·Sirius No. 7" and its preparation method

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