The Change of Calcium,Magnesium and Iron Content During the Process of Flue-cured Tobacco Leaves Maturation
LILi-jie, QIAOChan, ZHAOGuang-wei, LIUShi-feng
ACTA AGRICULTURAE BOREALI-SINICA . 2007, (S1): 148 -151 .  DOI: 10.7668/hbnxb.2007.S1.036