Herbicide technique: strict control of crop sensitivity to herbicides. Different crops sensitive to herbicides wholesale cornfield different herbicides, if not according to the sensitivity of the crop to the herbicide selection agent, even with the safety of the herbicide on crops cornfield herbicide manufacturers, sometimes prone injury. General herbicide for broadleaf weeds in dicotyledonous crops sensitive to herbicides for controlling weeds in cereal crops sensitive. Improve herbicide effect: The results showed that when the herbicide herbicide cornfield, the higher the temperature of the air and soil, its efficacy more significant, especially foliar herbicides herbicide efficacy can be greatly improved Cornfield Herbicide wholesalers at low temperature weather conditions the effect of the herbicide will not only significantly reduced, Ersi detoxification of crops due to low temperatures in vivo and relatively slow, so easy to induce injury.