干旱地区农业研究2009，Vol.27Issue(6)：27-32,6.
黄土旱塬长期施肥对小麦产量及养分平衡的影响
Effect of long-term fertilization on wheat yield and nutrient balance in dryland of the Loess Plateau
摘要
Abstract
Based on a long-term experiment, the effects of long-term fertilization on wheat yield and nutrient balance were investigated. The results show that rational use of fertilizer can increase wheat yield significantly, and increase the amount of nutrient absorption and improve nutrient content of soil. The combination of N and P application can increase wheat yield by 111.7% . Compared with the single application of N fertilizer and single application of P fertilizer, adding manure can increase the yield by 32.7% and 155.7% . The combination of N, P and manure application can increase the amount of N, P and K absorption by 303.5 % , 128.6 % and 238.8 % separately. In single application of fertilizer, a part of soil nutrients will be deficit. In single application of N fertilizer, soil P loss is high as 100% , while in single application of P fertilizer, N loss is as high as 100% . In combination of fertilizer, there are different levels surplus of N and P. In the experimental region, the agricultural production should focus on the application of manure fertilizer and the combination of fertilizer reasonably.关键词
小麦/产量/长期施肥/养分平衡/黄土旱塬Key words
wheat/yield/long-term application of fertilizer/nutrient absorption/dryland of the Loess Plateau分类
农业科技引用本文复制引用
摄晓燕,谢永生,郝明德,赵云英,张义,鞠艳..黄土旱塬长期施肥对小麦产量及养分平衡的影响[J].干旱地区农业研究,2009,27(6):27-32,6.基金项目
国家科技支撑计划项目(2006BAD09B10) （2006BAD09B10）
中国科学院方向性项目(KSCX1-YW-N15-04) （KSCX1-YW-N15-04）
