论文部分内容阅读
试验研究了稻作超稀植栽培下 ,丛插基数和插秧密度对产量诸构成因素的影响。结果表明 :超稀植时 ,插秧密度对分蘖率、结实率的影响不显著 ,而插秧基数成为增产的限制性因子 ;丛插基数和插秧密度具有密切的互补性 ,插秧密度 2 9 7cm× 19 8cm ,丛插基数为 1株 /穴的处理更有利于产量的增加 ;插秧密度相同而行株距有差异的两组处理相比 ,宽行距的处理更能协调群体的光能利用和改善通风能力 ,从而提高产量。
The effects of ultracentrifugation on the components of rice yield were studied through experiments on the basis of cluster interpolation and planting density. The results showed that the effect of transplanting density on tillering rate and seed setting rate was not significant when transplanting, but the transplanting base number was the limiting factor for increasing yield. The intercalary base number and transplanting density had close complementarity. The transplanting density was 2 9 7cm × 19 8 cm, and the number of bushes per plant was 1 plant per hole, which was more conducive to the increase of yield. Compared with the two groups with the same planting density and row spacing, the wide row spacing could better coordinate the utilization of light energy and improve the ventilation capacity , Thereby increasing production.