土壤2025，Vol.57Issue(4)：785-791,7.DOI:10.13758/j.cnki.tr.2025.04.008
抚仙湖流域典型烟区土壤中养分失衡对烟叶品质的影响
Effects of Soil Nutrient Unbalance on Quality of Tobacco Leaves in Typical Tobacco-planting Area in Fuxian Lake Basin
摘要
Abstract
The tobacco-planting area of Chengjiang City in the northern part of Fuxian Lake Basin was taken as the object,107 typical tobacco fields were selected,topsoils and C3F tobacco leaves were sampled,the macro-,meso-and micro-nutrients of soil and the elemental contents and quality indexes of tobacco leaves were determined and compared,and the ratio of soil other nutrient content to available phosphorus content was used to evaluate soil nutrient imbalance.The results showed that soil nutrient contents were generally high,the mean contents of alkali-hydrolyzable nitrogen,available phosphorus,available potassium,and available copper were 103.75,59.72,195.72,and 3.68 mg/kg,respectively,and the mean content of potassium in tobacco leaves was 26.1 g/kg.With the increase of soil available phosphorus content,the ratios of soil nutrients,such as alkali-hydrolyzable nitrogen,available phosphorus,exchangeable calcium and magnesium,and available copper,iron and manganese,to available phosphorus showed an exponential downward trend,indicating a serious soil nutrient imbalance.Soil nutrient imbalance increased the contents of nitrogen,potassium and nicotine,but significantly decreased the contents of copper,manganese and zinc,and reducing sugar in tobacco leaves,thus significantly impacted the quality of tobacco.In the future,for the improvement of the quality of tobacco leaves,accurate fertilization should be applied according to soil nutrient imbalance status and the changing characteristics of tobacco quality.关键词
土壤养分含量比值/烟叶养分/烟叶品质指标/土壤养分管理Key words
Soil nutrient content ratio/Tobacco nutrients/Tobacco quality index/Soil nutrient management分类
资源环境引用本文复制引用
徐勇贤,梁强,钱玭,陈志青,宗同凯,帅京彤,曾雪娇,王火焰,黄标..抚仙湖流域典型烟区土壤中养分失衡对烟叶品质的影响[J].土壤,2025,57(4):785-791,7.基金项目
云南省烟草公司玉溪市公司科技计划项目(yxyc2023010)资助. （yxyc2023010）
