毕节地区烟叶的中微量元素含量研究

通过对2004年贵州省毕节地区275个烟叶样品的测定分析,研究了毕节地区不同部位、不同颜色烟叶的中微量元素含量状况。结果表明:毕节地区烟叶的中、微量元素含量较为适中,铜、锌、锰、铁和镁、钙的平均含量分别为7.89、40.51、225.96、444.72 mg/kg和0.46%、2.95%,铜、锌、钙含量处于适中水平,锰、铁含量处于较高或高水平,镁含量处于较低水平。随着烟叶部位的上升,烟叶中铜和锌含量呈上升趋势,铁、锰、钙的含量随着烟叶部位的上升呈下降趋势。对于同一部位烟叶而言,桔色烟叶锰的含量高于柠色烟叶,而不同色组烟叶铜、锌、铁、钙和镁的含量大致相当。

Study on Medium and Trace Element Contents of Tobacco Leaves in Bijie Area

Through analyzing 275 tobacco leave samples in 2004,experiments were carried out to study the medium and trace elements in tobacco leaves of Bijie area.The result indicated that the average contents of Cu,Zn,Mn,Fe,Mg and Ca were 7.89 mg/kg,40.51 mg/kg,225.96 mg/kg,444.72 mg/kg,0.46 % and 2.95 %.Contents of Cu,Zn and Ca were moderate.Tobacco leaves were rich in Mn and Fe and poor in Mg.Contents of Cu and Zn mounted up from bottom leaves to top leaves,while Fe,Mn and Ca had the opposite trend.Mn content in orange leaves was rich than lemon leaves at the same part of leaves.Different color leaves had almost the same content of Cu,Zn,Fe,Ca and Mg.