Postemergence compound herbicide for wheat

Abstract

The invention relates to the technical field of herbicides, and discloses a postemergence compound herbicide for wheat. The postemergence compound herbicide for wheat contains two types of active ingredients, namely, mesosulfuron-methyl and florasulam, wherein the weight ratio of the mesosulfuron-methyl to the florasulam is (2-4):1, and preferably, the weight percentage of the mesosulfuron-methyland the florasulam is 0.1-85% of the compound herbicide. The compound herbicide disclosed by the invention both can be used for preventing and killing off annual grass weeds and broadleaf weeds in wheat lands, and has a significant weeding effect, a remarkable synergistic effect, and no effect on after-reap crops, therefore, the compound herbicide is an ideal herbicide.

Description

technical field

[0001] The invention relates to the technical field of pesticides, in particular to a post-emergence compound herbicide for wheat. Background technique

[0002] Wheat is one of the main food crops in northern my country, and it is also an important feed crop. The annual planting area in my country is more than 30 million hectares, second only to the rice planting area. The area of ​​wheat field weed damage accounts for more than 30% of the total planting area, of which more than 8% are severely damaged, and the yield is generally reduced by more than 15%, and in severe cases, the harvest may be completely eliminated. Therefore, the proportion of herbicides used in domestic wheat fields is almost 100%, and the dosage is very large. At present, the main herbicides for post-emergence control of weeds in domestic wheat fields are: pyroxaprop-ethyl, methylsulfuron-methyl, flucarbasulfuron-methyl, tribenuron-methyl, fluroxypyr, dicamba, metsulfuron-methyl , thias...

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