宁夏大学学报（自然科学版）2012，Vol.33Issue(4)：396-399,4.
宁夏平罗春小麦氮、磷、钾肥肥效及适宜用量
Spring Wheat N-P-K Fertilizer Efficiency and the Appropriate Amount for Pingluo in Ningxia
摘要
Abstract
The appropriate amount and efficiency of the N,P,K fertilizer for spring wheat of Pingluo in Ningxia were investigated by field emperiments designed with "3414" plan. Experiment results showed that grain yield of spring wheat significantly increased with fertilization treatments compared with unfertilized treatments. Yield of spring wheat was the highest by using N fertilizer, followed by P and K fertilizer in this sequence. Based on the fertilizer response equation, the highest spring wheat production was 5 231. 5 kg/hm2 when the optimum amount of nitrogen, phosphorus and potash fertilizer was N-258 kg/hm2, P2O5 ~ 173 kg/hm2 and K2O-22 kg/hm2 respectively, the economic optimum yield reached 5 220.7 kg/hm2 with amount of N-257. 9 kg/hm2, P2O5-173. 0 kg/hm2 and K2O21. 6 kg/hm2, and the mass ratio of N, P2O5 and K2O is 1: 0. 67 : 0. 08. This work is valuable for rational fertilization in the agriculture region.关键词
春小麦/氮、磷、钾肥/施肥量/宁夏平罗Key words
spring wheat/ N, P and K fertilizer/ fertilizer rate/ Pingluo in Ningxia分类
农业科技引用本文复制引用
田生昌,马建军,叶陆明..宁夏平罗春小麦氮、磷、钾肥肥效及适宜用量[J].宁夏大学学报（自然科学版）,2012,33(4):396-399,4.基金项目
宁夏平罗县测土配方施肥基金资助项目(200709) （200709）
