摘要
利用311饱和最优设计方法,推算玉米氮磷钾推荐施肥量。研究结果表明:最高产量的氮磷钾肥组合为:N225kg/hm2、P2O5150kg/hm2、K2O180kg/hm2;最高收益的氮磷钾肥组合为:N205.7kg/hm2、P2O5150kg/hm2、K2O148.9kg/hm2。
311 saturated optimal design method was adopted to study the recommended fertilization of corn, the results of NPK fertilizer combinations showed that： the highest yield was achieved applying N 225 kg/ hm^2 P2O5 150 kg/hm^2 and K2O 180 kg/hm^2 ; the maximum output was achieved applying N 205.7 kg/hm^2, P2O5 150 kg/ hm^2 and K2O 148.9 kg/hm^2.
出处
《农业科技与装备》
2008年第3期14-16,共3页
Agricultural Science & Technology and Equipment
关键词
311饱和最优设计
推荐施肥
应用
玉米
效益
311 experimental design
fertilizer recommendation
application
maize
benefit
