Endogenous nitrogen losses  内源氮损失量

rate of nitrogen losses  氮素损失率

Soil and nitrogen losses  土壤与氮素流失

amounts of runoff losses of nitrogen  农田氮素流失量

losses of nitrogen  氮素挥发损失

losses of nitrogen and phosphorus  氮磷流失

nitrogen and phosphorus losses  氮磷流失

nitrogen leaching losses  氮肥流失

Nitrogen runoff losses  氮素流失

combined application of organic nitrogen and nitrogen  有机无机肥配施

nitrogen balance nitrogen equilibium  氮平衡

nitrogen effect to soil nitrogen  氮效应

nitrogen response rate to fertilizer-nitrogen  氮响应

Real-time nitrogen management and site-specific nitrogen management  实时实地氮肥管理

(N) nitrogen  氮

(nitrogen) oxide  一氧化氮; 加速度动力放大系数(ADMF)

~(15)N labelled nitrogen fertilizer  ~(15)N标记氮肥

15N labelled nitrogen fertilizer  15N标记氮肥

3-Nitrogen  三氮