影响贵州烟叶化学成分的土壤养分因素分析  

Analysis of Soil Nutrients Affecting Chemical Constituents of Tobacco in Guizhou

作　　者：陈杰[1] 唐远驹[1] 

机构地区：[1]贵州省烟草科学研究所,贵州贵阳550003

出　　处：《作物杂志》2008年第1期68-71,共4页Crops

基　　金：国家烟草专卖局科技项目"贵州省烟草种植区划"(110200401018)

摘　　要：通过对270个烟样的化学成分和相对应的247个土样的养分指标进行相关、回归和通径分析,结果表明:土壤中全氮和有效硫是影响烟叶总糖的两个重要指标,全氮是对烟叶还原糖和K+影响较大的指标。土壤中的有效钾是决定烟叶总氮的最重要指标。有效磷是影响Cl-的重要指标。全钾对烟叶蛋白质的影响最大。综合来看,土壤中的全氮、全钾、有效钾和有效磷是影响贵州烟叶主要化学成分最显著的4个指标。In order to research into the pertinence relations between chemical constituents of flue-cured tobacco with soil nutrients in Guizhou province ,270 tobacco samples and 247 soil samples corresponding were tested in this study. The most important influencing factors of total sugar content and total nitrogen of tobacco were soil total nitrogen and available sulfur. And soil total nitrogen had the most impacts on tobacco reducing sugar content and K^＋ content. The strongest influencing factors of tobacco CL^ - content and total nitrogen content were soil available phosphorus and total potassium respectively. In total, total nitrogen, total potassium, available potassium and available phos- phorus in soil set up as the topmost impact factors on tobacco chemical constituents in Guizhou province.

关 键 词：烤烟 化学成分 土壤养分 回归分析 通径分析 

分 类 号：S572[农业科学—烟草工业] S158.3[农业科学—作物学]