烟草科技2016，Vol.49Issue(10)：15-22,8.DOI:10.16135/j.issn1002-0861.2016.0176
环秦岭区域植烟土壤养分状况及其与烟叶品质的关系
Nutrients of tobacco-growing soil around Qinling areas and their relationship with tobacco quality
摘要
Abstract
To analyze the status of soil nutrients and its relationship with tobacco quality in the tobacco-planting soil around Qinling areas, descriptive statistics and simple correlation analysis were used to study soil nutrients and their correlation with the chemical components and physical properties of tobacco leaves (C3F). The results showed that: 1) In the areas studied, most tobacco-growing soils were weakly acid to neutral in pH, and the contents of organic matter and alkaline nitrogen were low in general, while available P and K contents were rich. 2) According to the characteristics of soil pH and nutrients, 9 tobacco-planting counties could be divided into 4 categories: Ningqiang, Nanzheng, Pingli and the other 6 counties. Ningqiang had a low pH and high fertility; Nanzheng and Pingli had a relatively lower pH, moderate fertility and a high available P content, however the available K content was high in Nanzheng and low in Pingli. The other 6 counties had an average pH, low fertility and relatively high contents of available P and K. 3) Soil organic matter significantly negatively correlated to the weight per unit leaf area and single leaf weight of tobacco,extremely significantly positively correlated to total sugar and total nitrogen/nicotine ratio and significantly positively correlated to total sugar/nicotine ratio. Alkaline nitrogen extremely significantly negatively correlated to the reduced sugar/total sugar ratio, while significantly positively correlated to total sugar and total nitrogen/nicotine ratio. The other nutrient indicators influenced the chemical components and physical properties of tobacco leaves slightly. Therefore,in the tobacco-planting soil around Qinling areas, the application of nitrogen and organic fertilizer should be paid more attention during tobacco production, and the physical properties and chemical component harmony of tobacco leave could be improved by rational fertilization.关键词
环秦岭区域/土壤养分/烟叶/化学成分/物理特性Key words
Around Qinling areas/Soil nutrient/Tobacco leaf/Chemical component/Physical property分类
农业科技引用本文复制引用
陈丽燕,王建伟,刘海轮,张艳玲,胡颖梅,何登峰..环秦岭区域植烟土壤养分状况及其与烟叶品质的关系[J].烟草科技,2016,49(10):15-22,8.基金项目
中国烟草总公司陕西省公司科技项目“环秦岭生态优质烟叶研究与开发”（D2014010）。 （）
