摘要
研究了不同播种密度与直播稻产量、产量结构、各项群体质量指标的关系。结果表明，不同播种密度对直播稻中、后期群体质量，乃至产量都具有显著影响，适当降低直播稻播种密度有利于优化群体结构，增加后期光合面积，提高光合积累，从而有利于获得高产。
The effects of different densities on grain yield,yield components and various indexes of popular quality in direct sowing rice were stuided. The results showed that the density has significant effects on the population quality including grain yield at middle and later stages. Decreasing suitably the basic seedlings will improve the population construction,enhance the photosynthetic area at later stage and increase the accumulation of dry matter in direct sowing rice and so give high grain yield.
出处
《上海农业学报》
CSCD
1999年第2期61-64,共4页
Acta Agriculturae Shanghai
基金
上海市科技兴农重点攻关项目!"稻麦现代农艺吨粮技术研究与开发"
