Compound herbicide containing saflufenacil, cyhalofop-methyl and penoxsulam and its application

Abstract

The invention relates to a composite herbicide containing pyribenzoxim, cyhalofop-butyl and penoxsulam and an application of the composite herbicide. The composite herbicide comprises the following main active ingredients in parts by weight: 0.1-20 parts of pyribenzoxim, 0.1-20 parts of cyhalofop-butyl and 0.1-30 parts of penoxsulam. On the basis of a lot of individualized studies, the advantages of the three active ingredients namely pyribenzoxim, cyhalofop-butyl and penoxsulam are brought into full play by mixing at an appropriate rate by the inventor, and the defect caused by adverse impacts of a conventional composite herbicide on crops, soil alleviation and the like are effectively overcome.

Description

technical field [0001] The invention relates to the field of herbicides, and relates to a compound herbicide containing saflufenacil, cyhalofop-methyl and penoxsulam and an application thereof. Background technique [0002] Herbicides, also known as herbicides, refer to agents that can completely or selectively kill weeds. Sodium chlorate, borax, arsenic acid, trichloroacetic acid have a deadly effect on any kind of vegetation, but because of their residual effects, they should not be used in the field. Selective herbicides, especially derivatives of nitrophenols, chlorophenols, and carbamic acids, are mostly effective. [0003] The development of herbicides in the world is gradually stabilizing, mainly developing varieties with high efficiency, low toxicity, broad spectrum, and low dosage, and disposable treatment agents with little environmental pollution have gradually become the mainstream. [0004] Pyribenzoxim, molecular formula C 32 h 27 N 5 o 8 , chemical name:...

AI Technical Summary

Problems solved by technology

In the component B of the above-mentioned invention, sulfonylureas include many products, and some sulfonylurea products such as ethametsulfuron, flucarbazone, chlorsulfuron, and metsulfuron-methyl have a long residual time in the soil. Forbidden, in addition, such as acylsulfuron-methyl, chlorimuron-methyl, nicosulfuron-methyl, epoxysulfuron-methyl, flurimsulfuron-methyl cannot be used in rice fields, if used, it will kill rice and cause extinction

The use of quinclorac in component B in rice transplanting fields and dry direct-seeding fields will cause severe phytotoxicity to rice, which will lead to a substantial reduction in yield

Bispyribac of component B cannot be used in japonica rice and glutinous rice fields, and it cannot be used in rice areas north of the Yangtze River. It is easy to cause phytotoxicity. In mild cases, the yield will be greatly reduced, and in severe cases, there will be no harvest.

The fenpyramid of component B can only be used in dry direct-seeding rice fields, not in water direct-seeding fields, rice throwing fields, and transplanting fields. It will cause phytotoxicity when used in southern rice areas and is ineffective against weeds

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