宁南干旱山区春小麦氮、磷施肥模式研究  

Study on Fertitizer Model of Nitrogen and Phosphrous for Spring Wheat in Arid Hilly Area of South NingXia

作　　者：党增春[1] 李鼎新[1] 刘耀宏[1] 马国忠 

机构地区：[1]中国科学院西北水土保持所,水利部西北水土保持所,宁夏回族自治区固原基地办

出　　处：《水土保持通报》1994年第6期23-30,共8页Bulletin of Soil and Water Conservation

摘　　要：该文应用二次饱和Ｄ最优设计，研究了试区３种不同立地农田生态系统春小麦Ｎ、Ｐ施肥效应方程，建立起不同适宜性的施肥数学模型，分析研究了Ｎ、Ｐ肥的主效应和交互效应，计算出不同农田的最佳施肥量。以低位梯田为例，计算出不同产量下Ｎ、Ｐ肥的用量及最适配比。Based on the f1eld test of saturated D-optimal designs with a Square,This paper deals with the response equa-tion of N and P fertilizer,on Spring Whest in three different yild ecosystem in Shanghuang experimental station.The mathmatic model of fertilization with different adaptability has been established, The main effect and mutualeffects of N and P fertilizer have been analized and the optimum of fertilizer required has been caculated according tothe model.fertilizer amount applied and the optimum ratio of N and P of crops grown in low terrace have been cacu-lated as an example.

关 键 词：春小麦 氮肥 磷肥 施肥 宁南干旱山区 

分 类 号：S512.106.2[农业科学—作物学]