摘要
2007～2008年试验结果表明:免耕、旋耕和耕翻3种秋整地方式产量差异不明显。免耕茎数比耕翻和旋耕平均少45.7株/m2,穗粒数和结实率要明显比耕翻和旋耕处理高,平均高5.6粒和1.65%,这是免耕产量比常规耕作方式不减的主要原因。免耕可以降低生产成本,是值得推广的栽培方式。
The experiment was conducted to study the effects of three different tillage systems （NT, no-tillage; RT, rotary-tillage; MT, moldboard-tillage） on rice agronomic traits during 2007 - 2008. The results showed that there were no significant difference in yield among these tillage systems. The stem numbers of NT per square meters was 45.7 less than RT and MT for two-year average. The kernels per square meters and grain filling percentage were significantly increased by 5.6 and 1.65% individually for NT than RT and MT. Those lead to no difference for grain yield between NT and conventional tillage systems （MT and RT）. Practically NT is a worthy spreading method for reducing production cost.
关键词
水稻
秋整地
耕作方式
产量
rice
fall tillage
tillage system
grain yield
