A herbicide composition containing pinoxaden and its application

Abstract

The invention relates to a herbicide composition, which consists of pinoxaden and sulfonylurea herbicides. The herbicide composition of the present invention is compounded by pinoxaden and sulfonylurea herbicides such as iodosulfuron-methyl sodium salt, monosulfuron-methyl or tribenuron-methyl, and the compounding performance of the two active ingredients within a certain ratio range Excellent synergistic effect, the mixed composition significantly improves the herbicidal effect compared with a single agent, thereby reducing the dosage, reducing the cost of pesticides for farmers, and reducing the adverse impact of pesticides on the ecological environment.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a herbicide composition containing pinoxaden and its application. Background technique [0002] Wheat is one of the main crops in my country. Its planting area and output are second only to rice. It is not only the main food resource but also an important industrial raw material, and occupies an important position in the national economy. However, weeds have always occurred in varying degrees in my country's wheat fields. The weed damage rate in wheat fields is about 75%, which reduces yield by about 15%, and can reduce yield by more than 80%, which is an important factor affecting wheat quality and yield. In recent years, with the change of planting system and cultivation management, some new weed types and some non-agricultural land malignant weeds have developed rapidly in wheat fields, and new weed communities have formed. The single and continuous use of chemical herbici...

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Problems solved by technology

[0010] Monosulfuron-ester (Monosulfuron-ester), chemical name: N-[2'-(4'-methyl)pyrimidinyl]-2-methylcarboxylate benzenesulfuronyl urea, see formula IV above for the structural formula, monosulfuron-ester Ester is a new type of sulfonylurea herbicide with super efficient systemic conduction. It has the same mechanism of action as other sulfonylurea herbicides and is an acetolactate synthase (ALS) inhibitor. It can be used for winter and spring wheat fields to control fields Annual and perennial broad-leaved weeds such as quinoa, succulents, and Artemisia argyi have very good control effects. As a super-efficient creative pesticide with independent intellectual property rights in my country, monosulfuronate has a small amount of ultra-high efficiency, slight toxicity, and medicinal properties. It has the characteristics of stable efficacy, environmental friendliness, and moderate application cost. The disadvantage is that it is ineffective against grass weeds in the field.

[0015] CN201310737771.4 discloses a herbicidal composition containing flucarbasulfuron-methyl and monosulfuron-methyl. Both components belong to sulfonylurea herbicides and have the same mechanism of action. The same mechanism of action is used to kill weeds, which is easy to use Weeds are resistant to it

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