Herbicide injury prevention: In order to prevent improper use of herbicides and herbicide phytotoxicity Luoyang peanut fields, must be in strict accordance with the use of technology in Xinxiang peanut field herbicide and standards. Note herbicide sensitive crops. Different crops for different herbicide sensitivity inconsistent. Herbicides control broadleaf weeds on cereal crops sensitive to broadleaf crops to control grassy weeds in herbicide sensitive. Herbicide technique: pre-emergent herbicides only through weeds radicle, coleoptile or hypocotyl absorbed and kill weeds after emergence of weeds use, generally no herbicidal effect or herbicidal effect is very low. Post-emergent herbicide can also use safe and effective in certain growth stages of weeds or crops.