Herbicide technique: Herbicide with insecticides, fungicides compared to the use of technology demanding. Insecticides, fungicides and sometimes inappropriate, may only affect the control effect. The herbicide used improperly wholesale herbicides in rice fields, and is related to crop safety. To ensure the safe and efficient use of herbicides, strict control of crop sensitivity to herbicides. Increase herbicide effectiveness: soil treatment option is to spray the herbicide directly to the soil surface herbicides in rice fields wholesalers, kill the germination of weeds. Herbicides effect proportional to the level and temperature. High temperature herbicides in rice fields, absorption and transport functions weed herbicide strong herbicidal activity is high, easy to give full play to the role of herbicide site of action weeds.