摘要
应用二次正交回归旋转组合设计的方法,研究了强化栽培条件下杂交稻配施尿素、过磷酸钙、硅肥的主效应和交互效应与产量的关系, 并建立了产量与3种肥料的回归模型.结果表明, 过磷酸钙肥料对产量影响最大,尿素和硅肥次之.每667 m2获得700～750 kg以上稻谷产量的最优施肥量相应是尿素26.3～37.8 kg/66 m2、过磷酸钙13.0～18.1 kg/667m2和硅肥7.7～12.0 kg/667m2.
The three factors quadratic regression orthogonal rotational combination design was adopted in this experiment to study the relations among the yield and the main effects and interaction of three synthetic measures of different amount of fertilizer N(x_1),P_2O_5(x_2) and SiO_2(x_3) in the intensified cultivation system of hybridrice. The result was concluded as followed: Their effect to the yield is arranged from big to small: P_2O_5(x_2), N(x_1), SiO_2(x_3).The best amount of fertilizer that obtained yield above 700～750 kg/667m2 is: nitrogenous fertilizer is 13.0～18.1 kg/667m2, phosphate fertilizer is 26.3～37.8 kg/667m2, Si-fertilizer is 7.7～12.0 kg/667m2. And the mathematical model between the yield and three fertilizers have been set up.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2005年第3期365-369,共5页
Journal of Southwest Agricultural University
基金
国家科技部"三峡库区优质稻产业化综合技术开发"资助项目(K2000-09-04)
关键词
杂交稻
强化栽培
肥料
产量
模型
Hybridrice
Intensified cultivation
fertilize
Yield
Mathe matical model
