摘要
通过田间试验研究了云南红花大金元典型产区(弥渡和巍山)土壤理化性状与烟叶质量的关系。相关分析结果表明,土壤交换性镁含量与烟叶氯含量呈极显著正相关;土壤有效锰含量与烟叶钾氯比呈极显著正相关;土壤有效钼含量与烟叶氮碱比呈极显著正相关;物理性粘粒比例赋值与烟叶烟气劲头得分呈极显著正相关,与香气质、杂气得分呈极显著负相关;土壤交换性钙含量与烟叶香气量呈显著正相关。逐步回归分析方程的复决定系数R2以及自变量的回归系数均达到显著或极显著水平,拟合度较好,烟叶化学成分、评吸质量对土壤理化性状较为敏感。综合结果表明,大理红大产区土壤理化性状各指标分布较为均匀,除全钾、有效钼偏低外,其他土壤理化性状各指标中等至丰富,较为适宜。适当调整土壤理化性状、改良土壤质地有利于烟叶化学成分更加协调、评吸质量提高。
Field trials were conducted to study the relationship between quality of tobacco leaves and physicochemical properties of soil in typical Hongda- producing region(Midu and Weishan) in Dali of Yunan. Correlation analysis showed that a significant positive correlation was found between exchangeable magnesium content in soil and chlorine content in tobacco leaves, available manganese content in soil and ratio of potassium to chlorine, available molybdenum content in soil and ratio of nitrogen to alkaloid in tobacco leaves, physical clay ratio assignments and cigarette impact score, exchangeable calcium content in soil and aroma quantity of flue- cured tobacco, and a significant negative correlation between physical clay ratio assignments and either aroma quality or offensive odor. The coefficient of multiple determination R2 related to each stepwise equation and the regression coefficient of independent variables mostly achieved significant level and had a high goodness- of- fit, and chemical components and smoking quality of flue- cured tobacco were sensitive to physical and chemical properties of soil. The synthesis result indicated that all the indexes of soil physical and chemical properties there distributed relatively evenly: except that the contents of total potassium and available molybdenum were low, the others were medium- to- rich and appropriate. A proper adjustment of physicochemical properties and texture of soil there was conducive not only to the coordination of chemical compositions but the improvement of smoking quality of Hongda.
出处
《土壤通报》
CAS
CSCD
北大核心
2015年第6期1373-1379,共7页
Chinese Journal of Soil Science
基金
云南省烟草公司科技项目(2013YN28)资助
关键词
红大
土壤理化性状
烟叶质量
Hongda
Physicochemical properties of soil
Quality of tobacco leaves
