Effects of Keeping Topping and Threshing on Nutrient, Nicotine and Enzyme Activity of Upper Leaves and Root of Flue-cured Tobacco
LUO Fei, LU Xinli, LI Zhaoyang, WU Li, LI Zhanghai, LIU Xuemei, ZHANG Qingzhu, TANG Xingui
Journal of Nuclear Agricultural Sciences . 2017, (10): 2023 -2031 .  DOI: 10.11869/j.issn.100-8551.2017.10.2023