稻田杂草种类多、危害大,采用化学药剂防治效果好、稻谷产量高。据我县植保站多年的试验、示范,实行化学除草剂一次性灭草的稻田比未用化学除草剂灭草的稻田(对照田)杂草少、亩增稻谷37公斤以上。“防前控后”一次性化学除草的技术要点是:1.药剂选择。农都乐、农得 Many weed species in paddy field, great harm, the use of chemical control effect is good, high output of rice. According to many years of experiments at our plant protection station, demonstration and implementation of one-off weed-killing chemical weed-free paddy fields reduced the number of weeds by more than 37 kilograms per hectare compared with that of weeds that did not use chemical herbicides. “Pre-control ” one-time chemical weeding technical points are: 1. Pharmacy options. Agricultural music, agricultural income