摘要
杂交水稻高产栽培技术是在常规水稻栽培技术的基础上发展起来的。它针对杂交稻营养生长优势的表现形式和基本生物学特性进行合理的栽培。采用超稀播、育壮秧、以蘖代苗、适当稀植并采取以分蘖成穗为主的栽培途径是我国稻作栽培的新发展。杂交稻高产群体的研究不但确定了适宜的群体指标，更注重建成高光效群体和冠层结构。杂交稻栽培还注重引用新技术。在今后的工作中，栽培技术应以“三高”农业为取向，加强省工、节本、改善品质的栽培研究以及产量预测和对两系杂交稻栽培适应性的研究。
Hybrid rice cultural management was evolved from that of conventional rice and is based on theheterosis in vegetative growth and the biological characteristics of hybird rice. Hybrid rice cultural manage-ment emphasizes sparse sowing, strong seedling, use of individual tillering capacity and lower transplantingdensity. With its high tillering ablility and above managements, panicles developed from tillers could con-tribute up to 90%of the total. This is a new development in rice science in China. Studies in hybrid rice popu-lation structure provided guidance for production. Leaf area index (LA) of hybrid rice can reach a maximumof 9～10. Biological yield of 25.5 /ha and grain yield of 12～13.5 /ha for hybrid rice was reported in Xuzhou.Hybrid rice cultural management also emphasizes the improvement of canopy structure for more efficient lightutilization. Computer modelling and auxins have been applied in hybrid rice as part of cultural managementsince 1980s. In the future, research should be guided by yiel,quality and efficiency,i.e. reducing labor costand input, improving cultural technique for better quality,enhancing studies on yield prediction and culturaladaptability of two-line hybrid rice.
出处
《杂交水稻》
CSCD
北大核心
1994年第3期71-74,共4页
Hybrid Rice
关键词
杂交水稻
栽培
发展
hybrid rice
cultural management
development
