水稻直播田使用除草醚毒土法除草,效果不够理想。1977年,我们在播种后的直播田里试用除草醚直接喷粉,收到了良好的除草效果。1978年把这一方法应用到7,000多亩水直播田和水育秧田中,从而解决了历年稻田草荒的大问题。除草醚直接喷粉的好处是效果显著、安全省工。除草醚对碱草、牛毛毡、日照飘拂草、水马齿苋等一年生杂草的防除效果可达98％以上,对稗草86％以上;对三棱草、野 Rice weeding field weeding with poison soil weeding, the effect is not ideal. In 1977, we tested the weed directly on the direct seeding field and received good herbicidal effects. In 1978, this method was applied to more than 7,000 mu of water-seeded fields and hydroponic seedling so as to solve the major problems of paddy field over the years. The advantage of weeding ether direct dusting is that the effect is remarkable, safe and labor-saving. The herbicidal effect of weed-ether on annual weeds such as Siberian Husks, bovine felts, broomweed sunshine and purslane was up to over 98%, over 86% for barnyardgrass,