中文摘要：

为研究国内外不同烤烟中无机元素的差异,采用烟草行业标准方法对国内外烤烟中主要的14种无机元素进行了全面数据采集以及统计分析。结果表明：以云南省为代表的国内卷烟不同产区之间,不同部位的烤烟样品各无机元素分布存在差异,利用中部烤烟样品就能明显区分云南省5个区域的样品。在国外主要烤烟产区之间,可以明显区分美国、津巴布韦和巴西3个国家的无机元素分布区域。通过对国内外样品进行综合分析,发现在以云南省为代表的国内烤烟的钙和硝酸根含量水平明显高于国外烤烟的,而钾、氮、锌、镁含量水平显著低于国外烤烟的。

英文摘要：

The differences of inorganic elements in flue- cured tobacco from both domestic and overseas planting zone were investigated,forty main inorganic elements in flue- cured tobacco from different planting zones were analyzed by using standard method in tobacco industry. The results showed that,among the Yunnan planting zones,composition of inorganic elements in flue-cured tobacco samples existed differences in the upper,middle and lower tobacco leaves,respectively,and 5 planting zones could be distinguished by using the middle tobacco leaves. Among the oversea planting zones,obvious changes of inorganic elements composition were observed in the USA,Zimbabwe and Brazil. Compared with the oversea flue-cured tobaccos,low concentrations of potassium,total nitrogen,zinc and magnesium,and high concentrations of chlorine,iron,manganese,copper,sodium,boron,phosphate and sulfate were found in Yunnan province.