晚稻抛栽前免耕免用除草剂高产栽培

High-yield cultivation without using herbicide before seedling-broadcast with no-tillage in later rice

针对晚稻免耕抛秧前施除草剂需反复灌水，存在耗水多、周期长、增加成本、污染农田环境等问题，进行晚稻抛栽前免耕免用除草剂试验，可提早5～6d进行抛栽，每公顷增产稻谷130．5kg，节省工日17．5个，节约成本135～200元。

Because it needs to irrigate repeatedly on applying the herbicide before seedling-broadcast with no-tillage in late rice, the problems including large water consumption and long periodical, additional cost and field environment pollution, etc are caused. To solve these problems, the experiment on seedllng-broadcast with no-tillage without herbicide application in late rice was conducted. The results showed that seedling-broadcast could be carried out 5-6 days earlier; the increase of yield of rice grain was 130.5kg/hm^2, and the saving manpower was 7.5/hm^2. The reduced cost was 135-200 RMB Yuan/hm^2.