节点文献
施肥和种植密度对玉米品种东农252产量的影响
Effects of Applying Nitrogenous Fertilizer and Growing Density on the Yield of Maize Dongnong 252
【摘要】 本研究采用二次旋转回归组合设计,研究了5种密度和5个施氮水平对玉米品种东农252产量的影响。在氮肥和种植密度由低水平到高水平不断增加的过程中,东农252籽粒产量先增加后减少。本试验筛选出了最优组合方案为氮肥189 kg.hm-2,密度54900株.hm-2,最高籽粒产量为12352.68 kg.hm-2。
【Abstract】 The quadratic rotational regression combination design was used to study the effect of different nitrogen and density level on yield of the Dongnong 252.The main and interactional effects of agronomic practices were analyzed.The best combinational schemes and high-yield cultivation models were proposed.
【关键词】 玉米;
密度;
氮肥;
籽粒产量;
栽培模式;
【Key words】 maize; density; nitrogen; kernal yield; cultivation model;
【Key words】 maize; density; nitrogen; kernal yield; cultivation model;
【基金】 黑龙江省科技资助项目(GB04B103-03)
- 【文献出处】 黑龙江农业科学 ,Heilongjiang Agricultural Sciences , 编辑部邮箱 ,2009年01期
- 【分类号】S513
- 【被引频次】12
- 【下载频次】158