水稻直播古已有之。进入90年代后,各地采取了粮田适度规模经营、提高了农田机械化水平,加上农业科技的进步如农田高效化学除草剂的广泛研制应用,这些政策、经济、技术上的诸多因素,促进了稻作直播的应用与发展,并日益显现出增产增效的技术和经济优势。 Rice has been broadcast live already. Since the 1990s, various localities have taken a modest scale operation of grain fields and improved the mechanization of farmland. Coupled with advances in agricultural science and technology, such as extensive research and application of high-efficiency chemical herbicides in farmland, these policies, economic and technological factors have promoted The application and development of direct broadcast of rice, and increasingly showing the technical and economic advantages of increasing production and increasing efficiency.