摘要
【目的】探明烤烟主要化学成分与土壤因子之间的关系。【方法】采集云南省典型清香型烟区235份烟叶样品和对应田块的土壤样品,通过相关分析、逐步回归分析和主成分分析,研究影响云南清香型烟叶化学品质的主要土壤因子。【结果】云南烟叶具有总糖、还原糖含量较高的特征,含量分别为30.87%和27.21%;总氮、烟碱和钾含量处于适宜范围,分别为1.91%、2.63%和1.91%;云南烟区主要植烟土壤酸碱度适中,均值为6.3,全氮、全磷、有效钼和有效硫处于丰富水平,全钾、胡敏酸含量整体处于偏低水平,有机质、富里酸、有效硼、水溶性氯离子、盐分含量和CEC(阳离子交换总量)处于中等水平;烟叶总糖、还原糖、淀粉和钾含量与土壤全钾含量呈显著或极显著正相关,两糖差和糖碱比与土壤有效钼含量呈显著正相关,两糖差与土壤胡敏酸含量呈显著正相关,与土壤氯离子含量呈显著负相关。【结论】云南烟区植烟土壤中全钾、有效钼、胡敏酸、水溶性氯离子含量是影响云南烟叶化学品质最主要的指标。
【Objective】The aim of this paper is to explore the relationship between the main chemical components of flue-cured tobacco and soil chemical properties.【Method】All of 235 tobacco leaf samples and soil samples were collected from typical aromatic tobacco growing areas in Yunnan province.The main soil factors affecting the chemical quality of Yunnan fragrant tobacco leaves were studied by correlation analysis,stepwise regression analysis and principal component analysis.【Result】The contents of total sugar and reducing sugar in Yunnan tobacco were 30.87%and 27.21%,respectively;the contents of total nitrogen,nicotine and potassium were in the appropriate range,which were1.91%,2.63%and 1.91%,respectively;The results showed that the pH value of the main tobacco planting soils in Yunnan was moderate,with an average of 6.3.The contents of total nitrogen,total phosphorus,available molybdenum and available sulfur were in the rich level.The contents of total potassium and humic acid were on the low level.The contents of organic matter,fulvic acid,available boron,water-soluble chloride ion,salt content and CEC(total amount of cation exchange)were in the middle level.The contents of total sugar,reducing sugar,starch and potassium in tobacco leaves were significantly positive correlation with total potassium in soil.Two sugar difference and sugar alkali ratio were significantly positive correlation with soil available molybdenum content.Two sugar difference was significantly positive correlation with soil humic acid content,and was significantly negative correlation with soil chloride ion content.【Conclusion】The contents of total potassium,available molybdenum,humic acid and water-soluble chloride ion in tobacco growing soil of Yunnan tobacco growing areas are the most important indicators affecting the chemical quality of tobacco leaves in Yunnan.
作者
李孟霞
李军营
文国松
李永忠
LI Meng-xia;LI Jun-ying;WEN Guo-song;LI Yong-zhong(College of Tobacco Science,Yunnan Agricultural University,Yunnan Kunming 650201,China;Yunnan Academy of Tobacco Agricultural Science,Yunnan Yuxi 653100,China;Agronomy and Biotechnology College,Yunnan Agriculural University,Yunnan Kunming 650201,China)
出处
《西南农业学报》
CSCD
北大核心
2021年第2期340-346,共7页
Southwest China Journal of Agricultural Sciences
基金
中国烟草总公司云南省公司科技计划项目(2017Y N06、2018530000241017)
云南省重点科技研发(农业)项目(2018BB019)。
关键词
云南
烟叶
土壤
质量
Yunnan
Tobacco leaves
Soil
Quality of tobacco leaves
