fate of fertilizer N  黑土; 肥料氮去向; 化肥氮去向; 氮肥去向

section n-n n-n  剖面

fate of N  氮去向

Amount of N-fertilizer  施氮量

application methods of N fertilizer  施氮技术

balance of fertilizer-N  肥料氮的平衡

Balance of N fertilizer  氮肥平衡

benefit of N fertilizer  氮肥效益

Controlled release of N fertilizer  控释N肥

Deep application of N fertilizer  氮肥深施

effciency of N fertilizer recovery  氮肥利用率

effect of N fertilizer  氮肥效应

effect of N-fertilizer  氮肥效应

Efficiency of N fertilizer  N利用率; 氮肥利用率

Heavy application of N-fertilizer  重施氮肥

optimal application rate of fertilizer N  适宜施氮量

plant recovery of fertilizer N  氮肥利用率

rate of N fertilizer  施氮量

rate of N fertilizer applied  施氮量