节水减氮对土壤硝态氮分布和冬小麦水氮利用效率的影响

雒文鹤,师祖姣,王旭敏,李军,王瑞

Effects of water saving and nitrogen reduction on soil nitrate nitrogen distribution, water and nitrogen use efficiencies of winter wheat

Wen-He LUO,Zu-Jiao SHI,Xu-Min WANG,Jun LI,Rui WANG

图7 不同施氮量处理下小麦产量与氮肥利用和硝态氮淋失的关系 NAE: 氮肥农学效率; NUE: 氮肥利用效率。

Fig. 7 Relationship of wheat yield with nitrogen use and nitrate leaching under different nitrogen application rates NAE: nitrogen agronomic efficiency; NUE: nitrogen use efficiency.