Study on nitrate nitrogen leaching in poplar-wheat intercropping ecosystem by in situ analysis
WU Dianming, XUE Jianhui, LUO Ying, SHI Hao
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2012, (02): 111 -116 .  DOI: 10.3969/j.jssn.1000-2006.2012.02.023