贵州省土壤养分环境与烟叶质量的关系研究.

采用灰色关联度分析了影响贵州省烟叶化学品质的土壤因素的主次关系,结果如下:溶性氯＞有效硫＞有效锌＞有效铁＞有效铜＞有效磷＞有效硼＞有效锰＞有效氮＞全磷＞有机质＞pH＞全氮＞有效钾＞海拔.由于贵州省土壤微量元素变异系数大,故采用典型相关分析方法对影响烟叶品质的主要土壤因素进行了进一步研究,结果表明:影响贵州烟叶化学品质的...

Study on the Relationship of Soil Nutrient and Tobacco Chemical Components in Guizhou Province

Soil factors that influenced the tobacco chemical quality of Guizhou were studied with the grey relational analysis.Results indicated that the important order was water soluble Cl>available S>available zinc>available Fe>available Cu>effective phosphorus>effective Boron>available Mn>available N>total P>organic matter>pH>total N>available K>elevation.Because of the large CV of the soil microelement in Guizhou,canonical correlation analysis was adopted to analyze soil characteristics that influenced the tobacco chemical quality in a considerable degree.It indicated clearly that the effective nitrogen and phosphorus and soil organic matter were the most important factors.The nicotine,sucrose,reducing sugar and chlorine of tobacco were significantly affected by effective nitrogen and phosphorus.The effective nitrogen and phosphorus had opposite effect.The effective nitrogen and soil organic matter had considerable in-fluence to nicotine,total sugar,reducing sugar,protein and total nitrogen of tobacco.