关键词: 精量穴直播, 早稻, 播种期, 产量

Abstract:

The experiment results showed that sowing date had a great effect on yield, effective panicles, seed setting rate and 1000-grain weight, but had no obvious effect on total grain number per panicle of precision hill–drop drilling early rice Zhongzao 39. The development stages were postponed correspondingly, the whole growth periods were obviously shortened with the delay of sowing date. The suitable date of precision hill–drop drilling early rice is April 5-12 in Ruian city.

Key words: precision hill-drop drilling, early rice, sowing date, yield