秧龄与宽窄行移栽对单季晚粳常优1号产量的影响

The Effects of Seedling Age and Transplanting with Wide-narrow Row Spacing to the Yield of Chang-you 1

[目的]为水稻超高产栽培提供相关技术依据。[方法]以杂交粳稻常优1号为研究对象,研究秧龄与行距配置对水稻群体、产量及其构成因素的影响。[结果]小苗移栽可促进水稻及早分蘖,形成大穗,且群体干物质积累快,从而提高产量;宽窄行栽培由于窄行水稻植株间过早产生竞争,不利于水稻群体的早发,从而导致减产。[结论]小苗移栽有利于水稻高产,宽窄行不利于水稻生长。

[Objective]The study aimed to provide technical basis for ultra-high yield cultivation of rice. [Method]With the hybrid Japonica rice Chang-you 1 as test material to study the impact of the seedling age and wide-narrow row spacing transplanting to the rice mass,yield and its components. [Result]Transplanting with young seedling could promote tiller early,forming a large panicle,and accumulate of dry matter of rice mass quickly,thus increasing production. As the competing early between the rice in the narrow row,unfavorable rice mass developing early,wide-narrow row spacing transplanting could lead to Reduction of output. [Conclusion]Transplanting rice with young seedlings was conducive to high yield,wide-narrow row was not conducive to rice growing.