Herbicidal composition containing metamifop and fentrazamide

Abstract

The invention discloses a herbicidal composition containing metamifop and fentrazamide. Active ingredients of the herbicidal composition comprise metamifop and fentrazamide, wherein the mass ratio ofmetamifop to fentrazamide is (1-50):( 1-50). The herbicidal composition has a synergistic effect and is mainly applied to annual weeds and perennial weeds in a direct seeded rice field or a transplanting field, barnyard grass, leptochloa chinensis and other grassy weeds which are prevalent in the rice field can be prevented and removed, and crabgrass, eleusine indica, rotala indica, monochoria vaginalis, euphorbia helioscopia and other broad-leaved weeds and eleocharis yokoscensis, difformed galingale herb and other cyperaceae weeds can also be prevented; the herbicidal composition has the advantages of high herbicidal activity, a broad herbicidal spectrum and convenience for use, and is safe for rice and environment-friendly herbicide.

Description

technical field [0001] The invention belongs to the technical field of pesticide herbicides, and in particular relates to a herbicidal composition containing fenpyramid and tetramifen. Background technique [0002] Rice is one of the main food crops in my country. Rice is the staple food of about 60% of the country's population. Its sown area accounts for about 18.5% of the country's total sown area, and rice output accounts for 39.23% of the total grain output. Therefore, the increase or decrease of rice output have a significant 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...

AI Technical Summary

Problems solved by technology

The development of herbicides in paddy fields lags behind, and there are not many varieties. The widely used ones are bensulfuron-methyl, acetochlor, and tetrachloride. However, due to the long service life of these products, weeds have developed drug resistance. And they are not ideal for barnyardgrass and daughter

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