干旱区研究
Migration of Soil Nitrate Nitrogen and Ammonium Nitrogen in Cotton Field under Drip Irrigation
SHAN Na-na, LAI Bo, YANG Zhi-ying, DING Feng, YANG Guo-jiang
Arid Zone Research . 2016, (5): 1104 -1109 .  DOI: 10.13866/j.azr.2016.05.26