水稻强化栽培试验研究

选用穗数型常规水稻粤香占和大穗型杂交水稻粤杂122进行强化栽培(SRI)试验．结果表明：随着插植规格增大,粤香占和粤杂122都表现出生育期延迟,个体分蘖数、成穗率、每穗总粒数和千粒质量也相应增加的特点．2个品种各生育期群体茎蘖动态、叶面积指数、干物质积累、有效穗都随着插植规格增大而减少,但品种间存在明显差异．

Research of the experiment on the system of rice intensification

Small panicle type conventional rice variety "Yuexiangzhan" and big panicle type hybrid rice combinations "Yueza122" for experiment on the system of rice intensification (SRI) with four transplanting spacings. The result showed that the dense spacing was more width, the growth duration was prolonged, and tiller number of per hill,ear-bearing tiller rate ,total grain of per panicle,(1 000)-grain mass were increased, respectively. The dynamice structure of population including tiller, leaf area index, dry matter production was reduced with the increase of transplanting spacing, but the significant differences between two rice types were found.