土壤质地与烤烟化学成分关系分析

为了探明不同土壤质地对烟叶化学成分的影响,为优质烟叶的生产提供理论依据,以云烟87为试验材料,对紫色土、黄壤土、黄棕壤土和石灰土4中不同类型土壤的理化性质与烤后烟叶化学成分的差异进行相关性分析。结果表明:不同土壤的耕层厚度、速效氮、速效磷及速效钾差异显著,紫色与黄棕壤土两者烤后样的碳和氮化合物及氯含量差异不显著,与石灰土、黄壤土差异显著。典型相关分析表明,烟叶化学成分与黄壤土土壤耕层质地、黄棕壤土的土壤耕层质地和有机质及速效钾、石灰土的土壤有机质及速效氮、紫色土的pH值及速效氮关系密切。

Effects of Soil Texture on Chemical Components in Flue-Cured Tobacco

This study was to test the influence of different soils and their textures on the chemical composition of tobacco leaves, and to provide experimental data for the production of quality tobacco, by correlation analysis on the physical and chemical properties of 4 different soils and the difference of chemical components in flue-cured tobacco, with Yunyan 87 as the tested variety. The results indicated that there was a significant difference in the topsoil thickness, available nitrogen, available phosphorus and available potassium of the different soils, but no significant difference in the contents of carbon and nitrogen and chlorine in baked samples of the purple soil and yellowish-brown soil which were significantly different from lime soil and yellow soil. The chemical composition of tobacco leaves was closely correlated with the topsoil texture of yellow soil, the topsoil texture, organic content and available potassium of yellowish-brown soil, the organic content and available nitrogen of limestone soil, and the available nitrogen and pH of purple soil. The soil texture, organic matter, available nitrogen, potassium and pH had great effect on the chemical components of flue-cured tobacco.