Weeding composition containing metamifop

Abstract

The invention relates to a herbicide composition, and particularly relates to a weeding composition containing chlorpromazine sulfometuron methyl and metamifop as active ingredients for preventing and removing weeds of a paddy field. The weight ratio of the active ingredients chlorpromazine sulfometuron methyl to metamifop in the composition is (1:40) to (32:5); and the percent content of the active ingredients in the composition is 1-80%. The weeding composition is reasonable in components, and good in weed effect; the herbicide controlling spectrum is expanded; the drug delivery times is reduced; the prevention and control cost is reduced; the weed insecticide resistance is delayed; and the weeding composition is safe to rice and is an ideal herbicide.

Description

【Technical field】 [0001] The invention belongs to the technical field of pesticides, and in particular relates to a herbicide composition with promasulfuron-methyl and fenpyramid as active components, which is used for controlling weeds in paddy fields. 【Background technique】 [0002] my country is a large agricultural country, and rice is one of the crops with the largest planting area in our country. In order to ensure the high and stable yield of rice, the country has invested in various aspects, especially the promotion and application of science and technology. Rice is often harmed by various weeds during the growth period. These weeds have strong vitality and compete with rice seedlings for nutrients, water, sunlight, growth space, etc., seriously affecting the growth and development of rice seedlings, resulting in a decline in rice production or even failure . With the development of agricultural science and technology, the popularization and application of chemical ...

AI Technical Summary

Problems solved by technology

[0004] Mefenpyramid is an aryloxyphenoxypropionate herbicide developed by the Korea Chemical Technology Research Institute. It is an acetyl-CoA carboxylase (ACCase) inhibitor. The whole plant accumulates in the plant meristem, inhibits the activity of acetyl-CoA carboxylase, causes fatty acid synthesis to be blocked, causes leaf yellowing, and finally kills weeds. It can effectively control the main grass weeds in rice fields, and has low toxicity. , is environmentally safe, has wide compatibility, and is expected to be used for weeding other crops and lawns. It is a promising herbicide, but the herbicide is ineffective against broadleaf and sedge weeds

[0005] There have been a lot of literature reports on herbicide compositions containing promasulfuron-methyl or fenoxazone. For example, patent CN103271066A discloses that promasulfuron-methyl and pyrazosulfuron-methyl are used for weeding in paddy fields. The two active ingredients The mechanism of action is the same, and the control effect of the composition on the main gramineous weeds in the paddy field is relatively poor; the patent CN101965838A discloses a herbicide composition mixed with fenpyramid and cyhalofop-ethyl, the two active ingredients have the same mechanism of action, and can kill weeds The spectrum is similar, and the composition has special effects only on gramineous weeds, and is ineffective on broad-leaved and sedge weeds; patent CN102724876A describes a synergistic herbicide composition containing fluroxypyr and fenoxen for controlling rice Unwanted vegetation in the field, the composition containing two active ingredients can be further used in conjunction with other herbicides such as propyrisulfuron (propyrisulfuron) to control a wider range of undesired vegetation, but there is no literature yet to disclose There is no relevant biometric data to support the combination of promasulfuron-methyl and fenpyramid alone

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