Oxadiazon-containing herbicide composition

Abstract

The invention discloses a herbicide composition, and particularly discloses a herbicide composition taking pyroxasulfone and oxadiazon as active ingredients and used for preventing and killing weeds in a soybean field. The weight ratio of pyroxasulfone to oxadiazon in the active ingredients of the composition is 1:108 to 36:3, and the weight percent of the active ingredients in the composition is5-90%. The compound herbicide can be prepared into dosage forms of wettable powder, cream, a suspending agent, a micro-emulsion and the like. The herbicide composition can prevent and kill various weeds in the soybean filed at the same time, obviously improves the effect on preventing the weeds in the soybean field, is low in the use level of effective ingredients, is low in cost, is safe for thesoybean and afterreap crops, and is an ideal herbicide.

Description

【Technical field】 [0001] The invention discloses a herbicide composition for soybean fields, in particular a herbicide composition for controlling weeds in soybean fields with pyrazafen and oxadiazone as active ingredients. 【Background technique】 [0002] Soybean is the most nutritious and easily digestible food in the legume family. It is rich in protein and is an important source of food and feed. The canopy coverage of leguminous crops in the early growth stage is small, and it is easy to breed a variety of grasses and broad-leaved weeds. The main weeds are barnyardgrass, foxtail, crabgrass, goosegrass, cocklebur, amaranth, nightshade, quinoa, Purslane, Abutilon, etc. At present, chemical weed control is still the main weed control method, but due to the continuous single use of herbicides, the problem of weed resistance to herbicides is becoming more and more serious. At the same time, when weeds occur in soybean fields, the grass phases are complex, grass weeds, broad...

AI Technical Summary

Problems solved by technology

It can effectively control broad-leaved weeds, and it has better control effect on Abutilon, barnyard grass, nightshade, iron amaranth, retroverted amaranth, quinoa, etc. less effective

[0009] Herbicide compositions containing metazazone or oxadiazone have been reported in the literature. For example, the patent CN201710105849.9 discloses that the combination of oxadiazone and metolachlor can be used for weeding in soybean fields, but the composition is harmful to some Gramineae weed control effect is not very good; patent CN201510712580.1 discloses the suspension composition composition of pyrazafen and triflumezin, which can be applied to weeding in soybean field, wheat field and corn field, but the composition is harmful to soybean field part Poor control of broadleaf weeds

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