精量穴直播晚稻的产量形成特性研究  

Yield Formation Characteristics of Precision Hill-Direct-Seeding Late Rice

作　　者：舒时富[1] 郑天翔[1] 贾兴娜[1] 罗锡文[2] 黎国喜[1] 王在满[2] 陈伟通[2] 唐湘如[1] 

机构地区：[1]华南农业大学农学院,广东广州510642 [2]南方农业机械与装备关键技术省部共建教育部重点实验室,华南农业大学工程学院,广东广州510642

出　　处：《华南农业大学学报》2010年第1期96-98,共3页Journal of South China Agricultural University

基　　金：863计划项目(2006AA10A307);广东省科技计划项目(2004B20101007)

摘　　要：采用2种水稻密度的精量穴直播种植方式与人工移栽种植方式，对比研究了精量穴直播晚稻的产量形成特性。结果表明，2种密度的精量穴直播的实际产量比人工移栽的实际产量显著增加，分别增产2．75％-10．48％．精量穴直播较人工移栽的有效穗数多、结实率高．在孕穗期和齐穗期，精量穴直播的水稻叶片叶绿素含量显著高于人工移栽的，同时其光合速率也较高．The yield formation characteristics of two density precision hill-direct-seeding were studied in late season rice, compared with manual transplanting. The results showed that the yield of two density precision hill-direct-seeding was higher than that of manual transplanting, and increased 2.75% - 10. 48% respectively. The effective panicle number and seed setting rate of precision hill-direct-seeding were significantly higher than that of manual transplanting. In booting stage and full heading stage, the leaf chlorophyll content and the photosynthetic rate of precision hill-direct-seeding was significantly higher than that of manual transplanting.

关 键 词：晚稻 精量穴直播 产量 干物质 

分 类 号：S511[农业科学—作物学] S233.71