Herbicide composition containing halosulfuron-methyl and haloxyfop-R-methyl and application

Abstract

The invention discloses a herbicide composition containing halosulfuron-methyl and haloxyfop-R-methyl, the herbicide composition adopts halosulfuron-methyl and haloxyfop-R-methyl as main effective components, wherein the mass ratio of halosulfuron-methyl and haloxyfop-R-methyl is 1-5:12-80. The herbicide composition containing halosulfuron-methyl and haloxyfop-R-methyl has a remarkable control effect on preventing and killing one-year weeds in a sunflower field. The herbicide composition is prepared by the binary combination ofhalosulfuron-methyl and haloxyfop-R-methyl, although the usage amount of the effective components is reduced, compared with a single component, the herbicide composition produces the desired result more rapidly, and is more thorough in weeding and long in lasting period; meanwhile, the weeding spectrum is widened, the residual quantity and the toxicity are low after the herbicide composition is sprayed; the herbicide composition is safe to use and environmentally friendly, and has high safety to crops, and is an excellent chemical herbicide for sunflowers.

Description

technical field [0001] The invention belongs to the field of pesticides, and relates to a herbicidal composition containing chlorpyrazosulfuron-methyl and high-efficiency haloxyfop-pyl and its application. The herbicidal composition can be used for controlling annual weeds in sunflower fields. Background technique [0002] Halosulfuron-methyl, chemical name: 3-chloro-5-(4,6-dimethoxypyrimidin-2-ylaminocarbonylaminosulfonyl)-1-methylpyrazole-4- Methyl carboxylate. It is a sulfonylurea herbicide with a wide herbicidal spectrum, low dosage, high activity and strong selectivity. It is mainly used for controlling broadleaf weeds and Cyperaceae Tuoluo, ragweed, amaranth, wild watermelon seedlings, Polygonum, purslane, nightshade, cassia, morning glory, Cyperus cyperi, etc., but it is ineffective against gramineous weeds, and can be used for wheat, corn, rice, etc. crops and non-crops, but the requirements for application technology are relatively harsh, improper use can easily c...

AI Technical Summary

Problems solved by technology

For this reason, it is necessary to apply a large amount of herbicides for weed control every year to recover the loss of sunflower yield. Chemical weed control is one of the main means of weed control in farmland. Improper use of herbicides or improper use of techniques can easily lead to the emergence of weeds Phenomena such as drug resistance, unsatisfactory control effect or phytotoxicity

At the same time, when weeds occur in farmland, the grass phase is complex, grass weeds, broad-leaved weeds and other types of weeds are mixed, and the use of a single type of compound herbicide will show some defects and limitations, which cannot be completely solved. farm weeds

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