Bentazone-containing three-component herbicidal composition used for rice direct sowing field

Abstract

The invention discloses a bentazone-containing three-component herbicidal composition used for a rice direct sowing field. The herbicidal composition includes active ingredients, and the active ingredients refer to cyhalofop-butyl, bentazone and pyribenzoxim at a mass ratio of (1-20):(10-50):(1-10). The herbicidal composition used for the rice direct sowing field has a synergistic effect, and is mainly sprayed in the rice direct sowing field about 10 days after rice plants are transplanted so as to control barnyard grass, leptochloa chinensis and other gramineous weeds which grow vigorously in the rice direct sowing field and also control rotala indica, monochoria vaginalis, euphorbia helioscopia grass and other broadleaf weeds and eleocharis yokoscensis, difformed galingale herb and other cyperaceous weeds. The herbicidal composition has the advantages of being high in herbicidal activity, wide in herbicide controlling spectrum, convenient to use and safe to the rice plants.

Description

technical field [0001] The invention belongs to the technical field of pesticide herbicides, in particular to a ternary herbicide composition for direct-seeding rice fields containing bentazone. Background technique [0002] Rice is one of the main grain crops in my country. Its sown area accounts for about 18.5% of the country's total sown area, and rice production accounts for 39.23% of the total grain production. Therefore, the increase or decrease of rice production has a decisive impact. However, all kinds of weeds have affected the yield of rice all the time. According to investigations, the loss of rice yield in fields damaged by weeds is generally 10-20%, and serious loss is 40-50%. In recent years, a labor-saving and water-saving planting method of live-seeding rice has risen rapidly, and its weed control is particularly important. Among them, barnyardgrass, stephenia and other gramineous weeds have a greater impact and are more difficult to control, followed by Br...

AI Technical Summary

Problems solved by technology

It is mainly used for rice, soybean, peanut, wheat and other crops to control broad-leaved weeds and sedge weeds, and is ineffective against gramineous weeds

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