近年来随着杂交水稻的种植,油菜播种面积扩大,加之内移栽改为直播,看麦娘的危害已成为油菜生产上的严重问题,每亩仅除草一项需花15至30个工日。 1983年我们在4亩看麦娘严重的稻茬免耕油菜田进行化学除草试验,效果显著。在开好播种行后,每亩分别用10％的杀草丹颗粒剂3斤和4斤按亩用量冲水喷雾。打药后 In recent years, with the cultivation of hybrid rice, rapeseed sown area expanded, coupled with the transfer of direct broadcast to see the harm Ophiopogon rape has become a serious problem in production, only a herbicides per acre spent 15 to 30 days . In 1983, we observed the chemical weeding test on the 4 mu of serious maize stubble tillage rape fields with remarkable results. In a good sowing trip, each with 10% of the kill grass Dan granules 3 pounds and 4 pounds by the amount of flush spray. After the fight