Pinoxaden-containing herbicide composition and application thereof

Abstract

The invention relates to a pinoxaden-containing herbicide composition, which comprises the following components in percentage by mass: 0.5%-10% of pinoxaden, 0.5%-10% of clodinafop-propargyl or florasulam, 5%-20% of a cosolvent, 20%-87.9% of a solvent, 5%-20% of an emulsifier, 0.1%-5% of a stabilizer and 0.5%-20% of a safener. According to application requirements, several components are compounded and processed into an emulsifiable concentrate product, the synergistic interaction is obvious, and the usage amount is obviously reduced. Meanwhile, by screening and adding a cosolvent with higherboiling point and capable of forming effective complexation and the solvent, the solubility and the heat stability are improved, and the defect that pinoxaden in a product system is easy to decomposeis overcome.

Description

technical field [0001] The invention belongs to the technical field of pesticides and relates to a herbicidal composition containing pinoxaden. Background technique [0002] Wheat is the most important food crop in northern my country, with an annual planting area of ​​25 million hectares nationwide. In recent years, with rising prices, the planting area has increased. Chemical weeding has become one of the main means of controlling weeds in wheat fields in agriculture. [0003] However, chemical methods of weeding have been carried out for a long time, and my country’s winter wheat faces three problems in weed control: First, the long-term use of weed control for broad-leaved weeds such as Benuron has resulted in dominant broad-leaved weeds in wheat fields (such as Artemisia sorenzo, shepherd’s purse, etc.) Resistance generally occurs; second, due to the single long-term use of herbicides against broad-leaved weeds, resulting in the double effect of weeds, some grass weeds ...

AI Technical Summary

Problems solved by technology

[0003] However, chemical methods of weeding have been carried out for a long time, and my country’s winter wheat faces three problems in weed control: First, the long-term use of weed control for broad-leaved weeds such as Benuron has resulted in dominant broad-leaved weeds in wheat fields (such as Artemisia sorenzo, shepherd’s purse, etc.) Resistance generally occurs; second, due to the single long-term use of herbicides against broad-leaved weeds, resulting in the double effect of weeds, some grass weeds and some difficult-to-control disasters, etc.) emerge in endlessly; third, herbicide damage occurs frequently

However, pinoxaden also has three major problems: first, it will cause phytotoxicity to wheat and barley seedlings; second, long-term single use will lead to outstanding weed resistance; third, it is easy to decompose

Due to the complexity of the solubilizing mechanism, many of the mechanisms are still unclear. Therefore, there is no clear rule to follow in the selection of the solubilizing agent. Generally, the water-soluble intermolecular complexes and complexes can only be selected according to the properties of the drug. Substances of salt or association