Herbicide prepared by binary combination of oxyfluorfen and pendimethalin and preparation method thereof

Abstract

The invention provides a herbicide prepared by binary combination of oxyfluorfen and pendimethalin and preparation method thereof. The herbicide consists of the following components in percentage by mass: 3 to 10 percent of oxyfluorfen, 10 to 30 percent of pendimethalin, 5 to 15 percent of synergist, 8 to 20 percent of emulsifier and the balance of solvent. The preparation method comprises the following steps of: mixing the oxyfluorfen and the solvent in the mass ratio and stirring the mixture; mixing the pendimethalin and the solvent and stirring the mixture; mixing the obtained solution; adding the emulsifier, the synergist and the obtained mixture in a reaction kettle, and stirring the mixture in the reaction kettle for 10 to 15 minutes; adding the remained solvent into the mixture, and stirring the mixture for 20 to 30 minutes; and performing standing, filtering, filling and sampling analysis to obtain the finished product. The herbicide is a high-efficiency contact type broad-spectrum herbicide; when the herbicide is used for controlling annual gramineae and cyperaceae monocotylous and dicotyledons weed,, such as soy beans, wheat, potatoes, cotton, tobacco, vegetables and melon-fruit plants, in tea gardens and orchards, the effect is produced in 2 to 3 hours, and the weed is died in 3 to 5 days, and after one time of pesticide application, the harmful weed can be removed in the whole growing periods of plants. The dosage of the herbicide is 25 to 35 grams per mu, and the application cost of the herbicide is 57 to 43 percent lower than the sole application cost of the oxyfluorfen or the pendimethalin.

Description

technical field The invention relates to a herbicide and a preparation method thereof, in particular to a herbicide obtained by binary compounding of diphenyl ether oxyfluorfen and aniline herbicide pendimethalin and a preparation method thereof. Background technique Oxyflufen is a contact herbicide that works in the presence of light. Pre-emergence and early post-emergence applications work best. Pendimethalin is an aniline broad-spectrum herbicide, which is effective in controlling annual weeds in dryland crops. Contents of the invention The purpose of the present invention is to solve the problem that the above herbicides cannot kill all the weeds at one time, and to provide a herbicide compounded with oxyfluorfen and pendimethalin and its preparation method, referred to as " Baiqian · Sirius 4" and its preparation method. The technical scheme that realizes the object of the present invention: A herbicide made of binary compound of oxyfluorfen and pendimethalin, ...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to solve the problem that the above herbicides cannot kill all the weeds at one time, and to provide a h

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