Influence of nitrogen levels on photosynthesis,nutrient elements and camptothecin content of Camptotheca acuminata
KUANG Heling, WANG Guibin,CAO Fuliang
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2016, (03): 15 -20 .  DOI: 10.3969/j.issn.1000-2006.2016.03.003