Binary herbicide composition containing hydroxyphenylpyruvate dioxygenase inhibitor and tribenuron-methyl as well as preparation and application thereof

Abstract

The invention relates to a binary herbicide composition. The binary herbicide composition comprises a hydroxyphenylpyruvate dioxygenase inhibitor and tribenuron-methyl, wherein the mass ratio of the hydroxyphenylpyruvate dioxygenase inhibitor to the tribenuron-methyl is (1.125 to 72) : 1. According to the binary herbicide composition, the two herbicides are scientifically proportioned, so that theweeding spectrum can be expanded for preventing and eliminating annual and perennial broadleaf weeds in wheat fields in one step, and a good total prevention and control effect on the weeds is achieved; the two herbicides are matched to realize a synergistic effect; after the hydroxyphenylpyruvate dioxygenase inhibitor and the tribenuron-methyl are compounded, the dosage of the tribenuron-methylcan be reduced and the resistance to the tribenuron-methyl is alleviated.

Description

technical field [0001] The invention belongs to the technical field of pesticide herbicides, and in particular relates to a binary herbicide composition containing quinatrione and tribenuron-methyl, as well as its preparation and application. Background technique [0002] Wheat is one of the three major food crops in my country. Its planting area and total output are second only to rice. The national planting area is more than 30 million hectares, about 450 million mu, accounting for 22%-30% of the country's cultivated land area, about 20%-27% of the sown area, the total wheat output is about 100 million tons, reaching 22% of the total grain output (Wu Mingrong et al., 2013, Pesticides). Wheat is the main commodity grain and strategic reserve grain variety in my country, and plays an important role in grain production, circulation and consumption. The development of wheat production is of great significance to the development of my country's national economy and people's live...

AI Technical Summary

Problems solved by technology

Reasonable compounding or compounding of chemical herbicides can expand the herbicidal spectrum, improve the control effect, extend the application period, reduce the dosage, reduce the risk of phytotoxicity, reduce the residue, and delay the occurrence and development of weed resistance and drug resistance Therefore, choosing the appropriate compound or mixture of herbicides is one of the most effective and economical methods to solve the above problems; however, due to the complex mechanism of action between the mixture of pesticides, whether the synergy after combination is affected by many factors , can only be verified by relying on experimental results, and cannot be expected

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