Soil pH Dynamics and Nitrogen Transformations Under Long-Term Chemical Fertilization in Four Typical Chinese Croplands
MENGHong-qi, XUMing-gang, LüJia-long, HEXin-hua, LIJian-wei, SHIXiao-jun, PENG
Journal of Integrative Agriculture . 2013, (11): 2092 -2102 .  DOI: 10.1016/S2095-3119(13)60398-6