Not too good for herbicides. Treatment with bensulfuron-methyl and pyrazosulfuron-methyl has a certain control effect on weeds such as Trifolium pratense, but the amount can not be large, and the amount of pure drug per acre should not exceed 1 gram, otherwise it may cause serious injury to lotus root. In particular, pyrazosulfuron is harmful to lotus root herbs and should not be used. The occurrence of Trichosanthes sp.
Triticum aestivum and other vicious weeds occur in severe fields, and it is best to plant this rice or sorghum white rice. In the growth stage of these grasses, the herbicides are used to remove field grass from Trichoderma sp.