摘要
采用 3因素 5水平二次正交回归的旋转组合设计方法 ,研究了协优 5 5 9栽插密度、分蘖肥及穗肥用量与籽粒产量的关系。通过建立数学模型 ,解析各因素的产量效应 ,仿真筛选出 975 0kg/hm2 以上高产的优化组合方案 ,即 :栽插密度 32 .385万～ 34.935万穴 /hm2 ,分蘖肥和穗肥用量均为 2 43 .45～ 2 6 3 .70kg/hm2 。
The relationship between the planting density, the application amount of fertilizer in the tiller and heading stage and yield was studied and the effect of yield components were analyzed through the mathematic model, and the desige of perorior combination with over 9 750 kg/hm 2 was selected: the planting density, 323.8～349.4 thousand den/m 2 and the amount of fertilizer in the tiller and heading stage, 243.5～ 263.7 kg/hm 2 respectively.
出处
《安徽农业科学》
CAS
2001年第4期441-442,共2页
Journal of Anhui Agricultural Sciences
基金
江苏省"九五"重大攻关项目 (BG9650 3 0 2 )
关键词
杂交水稻
协优559
高产栽培
农艺措施
数学模拟
Hybrid rice, Xieyou 559, High-yielding cultivation technique, Agronomic measure,Mathematic model
