控释氮肥减施对春玉米产量、氮素吸收及转运的影响

尹彩侠, 李前, 孔丽丽, 秦裕波, 王蒙, 于雷, 刘春光, 王立春, 侯云鹏

Effect of Reduced Controlled-Release Nitrogen Fertilizer Application on Yield, Nitrogen Absorption and Transportation of Spring Maize

CaiXia YIN, Qian LI, LiLi KONG, YuBo QIN, Meng WANG, Lei YU, ChunGuang LIU, LiChun WANG, YunPeng HOU

表3 不同施氮处理对氮肥利用效率的影响

Table 3 Effect of different N fertilization methods on N fertilizer utilization efficiency

处理 Treatment 氮肥生理利用率 NPE (kg·kg-1) 氮肥农学利用率 AEN (kg·kg-1) 氮肥偏生产力 PFPN (kg·kg-1) 氮肥利用率 NUE (%) FP 23.9b 6.6b 46.2c 22.1b OPT 28.6a 12.5a 65.3b 41.8a CRU1 30.7a 11.5a 64.3b 40.5a CRU2 27.2a 12.9a 79.0a 43.8a