摘要
以杂交稻协优527为材料,研究了在强化栽培条件下适宜的移栽叶龄和栽植密度.结果表明:不同移栽叶龄(2～5叶龄)对其产量的影响很小,在强化栽培应用中,可以采用4～5叶龄的带蘖秧苗移栽;在本试验范围内,强化栽培的适宜栽培密度为9万穴/hm2～13.5万穴/hm2,此时,后期光合产物积累多,穗、粒结构合理,产量可达最高.
The seedling-age and planting density in System of Rice Intensification （SRI） were studied with Xieyou 527, a hybrid rice cultivar. The result indicates that no effect of seedling-ages on grain yield is found. In production practice of SRI, the selection of seedling-ages is 2 to 5 leaf-age. The suitable planting density is 9 × 10^4 plant/hm^2 to 13.5 × 10^4 plant/hm^2 and the grain yield is the highest.
出处
《四川农业大学学报》
CSCD
2005年第3期368-373,共6页
Journal of Sichuan Agricultural University
基金
国家粮食丰产科技工程(2004BA520A05)
农业部结构调整重大专项(2003-01-03B)
四川省育种攻关后补助。
关键词
水稻强化栽培
秧龄
栽植密度
产量
System of Rice Intensification （SRI）
seedling-age
planting density
grain yield
