【摘要】 取样检测了云南省主产烟区烤烟旺长期中铅(Pb)、镉(Cd)、汞(Hg)、砷(As)4种元素在烟株的含量分布,并用DPS 8.01对检测的10组样品检测数据进行统计分析。结果表明,4种元素在烤烟旺长期各部位间含量差异总体上是显著的(P<0.05),含量趋势为下部叶片>中部叶片>上部叶片>茎,根中的含量则不同的元素有所不同,As元素根中的含量最高,而Cd元素在根中的含量最低。更多还原

【Abstract】 The accumulation and distribution of Hg,As,Pb and Cd in flue-cured tobacco were studied and statistically analyzed.The results showed significant difference(P<0.05) among the distribution of Hg,As,Pb and Cd in flue-cured Tobacco in vigorous growing period.The content of five elements in different leaf position showed as lower leaves > middle leaves >upper leaves> stalk.The content of different elements in root were different.The content of As in root was highest while that of Cd was the least.更多还原