Binary herbicide prepared by compounding oxyfluorfen with fluazifop-butyl and preparation method thereof

Abstract

The invention relates to a binary herbicide prepared by compounding oxyfluorfen with fluazifop-butyl and a preparation method thereof. The herbicide consists of the following components in percentage by mass: 3 to 10 percent of oxyfluorfen, 8 to 20 percent of fluazifop-butyl, 5 to 15 percent of surfactant, 6 to 20 percent of emulsifier and the balance of solvent. The preparation method comprises the following steps of: adding the solvent into the oxyfluorfen for mixing and stirring; adding the solvent into the fluazifop-butyl for mixing and stirring; mixing and stirring; adding the emulsifier and the surfactant into a reaction kettle, stirring for 10 to 15 minutes; adding the rest of solvent and stirring for 20 to 30 minutes; and standing, filtering, filling and performing sampling analysis to obtain a finished product. The herbicide is a high-efficiency broad-spectrum herbicide, and is used for removing 4 to 6 leaves period of weeds in a tea garden, a fruit orchard and a forestry nursery, and for crops such as grape, tobacco, cabbage, chilli, potato, sweet potato, soybean, flax, rubber and the like; after 45 to 55g of herbicide is applied to each mu at one time, the weeds can be completely removed in the whole growth period of the crops; and the application cost is respectively 29.8 to 30.6 percent lower than that of the oxyfluorfen and the fluazifop-butyl which are separately applied.

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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