南方农业学报2011，Vol.42Issue(5)：518-520,3.
施氮量和栽培密度对超高产早稻Y两优302产量及其构成因素的影响
Effects of transplanting density and nitrogen fertilizer rate on yield and its components in super-high-yielding early rice variety Y-liangyou 302
摘要
Abstract
[Objective]The present experiment was conducted to find out appropriate rate of nitrogen application and planting density for high-yield super rice variety Y-liangyou 302 in north region of Guangxi. [Method]A field experiment was conducted with different transplanting densities (24.4,30.6,36.8 and 42.6x104 hills/ha) and nitrogen fertilizer rates (150 and 225 kg/ha) to investigate their effect on the yield of super-high-yielding early indica rice variety Y-liangyou 302, during different growth stages. [Results]The yield of Y-liangyou 302 was mainly affected by panicles and spikelets per panicle, while the spike length and 1000-grain weight did not showed any significant influence on yield. The highest yield was recorded in the treatment with 225 kg/ha nitrogen fertilizer and 24.4x104 to 30.6x104 hils/ha planting density. [Conclusion]High nitrogen and low planting density is conducive to increase the yield of rice variety Y-liangyou 302 in north region of Guangxi.关键词
氮肥/移栽密度/籼稻/产量Key words
nitrogen fertilizer/ transplanting density/ Y-liangyou 302/ yield分类
农业科技引用本文复制引用
赵荣德..施氮量和栽培密度对超高产早稻Y两优302产量及其构成因素的影响[J].南方农业学报,2011,42(5):518-520,3.基金项目
国家现代农业产业技术体系广西(水稻)创新团队专项资助 （水稻）
