摘要
目的:研究北方半夏在人工栽培条件下产量与施肥的数学模型,以指导大田科学施肥。方法:试验采用3因素5水平2次通用旋转组合设计。结果与结论:只有氮(N),磷(P),钾(K)配施,方可实现本试验条件下栽培半夏的最大产量:29 921.4 kg.hm-2;此时施肥量N,五氧化二磷(P2O5),氧化钾(K2O)分别为413.79,224.79,164.01 kg.hm-2,施肥纯收益为475 809.21元/hm2。肥料的主效应P>N>K。
Objective:To study the mathematical model of optimum fertilizer application to Pinellia by field experiments.Method:Three factors and 5 levels quadratic rotational combination design was applied to study the effects of N,P and K.Result and Conclusion:N,P and K combination application can achieve the maximum yield of 29 921.4 kg·hm-2,the amount of N,P2O5,K2O were 413.79,224.79,164.01 kg·hm-2,respectively.The effects of the 3 factors were in following orders:P>N>K.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2009年第6期669-673,共5页
China Journal of Chinese Materia Medica
关键词
半夏
产量
施肥
Pinellia ternate
yield
application fertilizer
