Effect of Nitrogen Topdressing on the Key Enzymes of Carbon and Nitrogen Metabolism During the Process of Tobacco Leaf Maturation
LIU Wei-qun, CHEN Liang-cun, ZHEN Huan-ju, SHI Yong-chun
ACTA AGRICULTURAE BOREALI-SINICA . 2005, (3): 74 -78 .  DOI: 10.3321/j.issn:1000-7091.2005.03.019