Influence of continually supplementing nitrogen on the quality of Larix olgensis seedlings
ZHU Yan, LI Guolei, LI Qingmei, LIU Yong, ZOU Shangqing, JIANG Le
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2013, (01): 44 -48 .  DOI: 10.3969/j.issn.1000-2006.2013.01.007