广东省连州市从1998年开始用金优桂99、优优77、Ⅱ优46、汕优96等杂交水稻组合实施免耕抛秧技术，进行两造多点试验、示范结果表明，免耕抛秧比翻耕抛秧亩增产8～21kg，增幅1.9％～4.3％。杂交水稻免耕抛秧栽培技术具有以下优点：一是节省成本，经济效益明显。免耕抛秧增加支出 Starting from 1998, Lianzhou City, Guangdong Province, implemented no-tillage and sowing techniques with hybrid rice combination Jinyoung 99, Youyou 77, Youyouyou 46, and Shanyou 96 for two more experiments. The results show that no-tillage Transplanting seedling than transplanting seedling mu yield 8 ~ 21kg, an increase of 1.9% to 4.3%. Hybrid rice no-tillage throwing cultivation techniques have the following advantages: First, save costs, significant economic benefits. No-tillage throwing increase spending