Multiple herbicidal composition for paddy rice field

Abstract

The invention discloses a multiple herbicidal composition for paddy rice field and an application of same. The herbicidal composition includes the following active components: cyhalofop-butyl, fluroxypyr-mepthyl, fenoxaprop-p-ethyl and a safety agent isoxadifen-ethyl, wherein weight ratio of the cyhalofop-butyl, the fluroxypyr-mepthyl to the fenoxaprop-p-ethyl is (8-24):(1-5):(1-5), and the weightratio of the fenoxaprop-p-ethyl to the isoxadifen-ethyl is 1-2:1. The multiple herbicidal composition has a synergistic effect and can be used for preventing and removing annual weeds in the paddy rice field, is significantly better than single preparation in effect, is enlarged in herbicidal spectrum and reduced in usage amount, reduces environment pollution, delays generation of drug resistanceof weeds, and is an excellent novel medicine composition for preventing and removing the annual weeds in the paddy rice field.

Description

technical field [0001] The invention belongs to the field of agrochemicals, and in particular relates to a paddy field multi-component herbicide composition aimed at solving the problem of controlling annual weeds in paddy fields. Background technique [0002] Cyhalofop-butyl is the only aryloxyphenoxypropionic acid herbicide that is highly safe for rice. It has a systemic transduction effect, is absorbed by the leaves and leaf sheaths of the plant, conducts in the phloem, and accumulates in the plant. In the meristem area of ​​the body, the inhibition of acetyl-CoA carboxylase (ACCase) stops the synthesis of fatty acids, the growth and division of cells cannot be carried out normally, the membrane system and other lipid-containing structures are destroyed, and finally the plant dies. Cyhalofop-ethyl is mainly used to control important grass weeds, such as daughters, crabgrass, paspalum, foxtail, goosegrass, etc. It is ineffective against sedges and broad-leaved weeds. [0...

AI Technical Summary

Problems solved by technology

[0006] Farmland weeds are complex and diverse, and the application of chemical agents is one of the most effective chemical means to control agricultural weeds; it is a good solution to control agricultural weeds with new compounds without cross-resistance; however, transnational Although the company has a strong technical reserve and experience in new product development, there is an unavoidable fact that it is becoming more and more difficult to develop new formulations, efficient and environmentally friendly green pesticides in a timely manner, and the input-output ratio is also increasing. , the R&D cycle continues to grow, super weeds are becoming more and more serious, the speed of R&D is hard to match the speed of weed resistance, and this trend cannot be reversed

Other methods, such as crop layout adjustment, rotation of different pesticides, etc., are difficult to achieve obvious effects in actual operation.

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