摘要
采用二次回归正交旋转组合设计,研究杂交玉米新品种高瑞171产量与栽培密度及氮、磷、钾肥施用量的关系,建立了各因素与产量的数学模型。对高瑞171产量影响大小依次为栽培密度>施氮量>施磷量>施钾量。提出了高瑞171获得9 558 kg/hm2以上产量的栽培密度及N、P、K肥施用量的优化组合方案:即栽培密度41 768～44 395株/hm2,施氮量193.34～249.39 kg/hm2,施磷量128.90～179.79 kg/hm2,施钾量92.9～131.09 kg/hm2。其目的是为发挥该品种最大的增产潜力、为加速大面积推广提供指导。
Using two orthogonal rotational regression combination design, research of new hybrid maize varieties in Gaorui 171 yield and planting density and nitrogen, phosphorus, potassium fertilizer application relationship, building mathematical models of the various factors and yield. The size effect on maize yield were Gaorui 171 planting density and amount of nitrogen, phosphorus and potassium. The great Gaorui 171 above 9 558 kg/hm2, yield of planting density and N, P, K fertilizer optimum combination scheme： the planting density of 41 768-44 395 strain/hm2, N 193.34-249.39 kg/hm2, P 128.90-179.79 kg/hm2, potassium 92.9-131.09 kg/hm2. Its purpose is to play the production potential, the largest species provide guidance to accelerate large area promotion.
出处
《广东农业科学》
CAS
CSCD
北大核心
2013年第5期7-8,共2页
Guangdong Agricultural Sciences
基金
重庆市玉米育种创新项目(CSTC2007AA1012)
重庆市科技支撑计划项目(CQSS2011B016)
