曲靖烤烟钾含量空间变异特征及主控因素解析  

Spatial Variation Characteristics of Potassium Content and Its Main Controlling Factors in Flue Cured Tobacco in Qujing,China

作　　者：王子维[1] 解燕[2] 程昌新[3] 李强[1] 李明昌[2] 刘加红 邵建平[2] 刘诚[2] 周冀衡[1] WANG Zi-wei;XIE Yan;CHENG Chang-xin;LI Qiang;LI Ming-chang;LIU Jia-hong;SHAO Jian-ping;LIU Cheng;ZHOU Ji-heng(College of Bioscience and Biotechnology/Institute of Tobacco/College of Agronomy,Hunan Agricultural University,Changsha 410128,China;Yunnan Provincial Tobacco Company Qujing Branch,Qujing,Yunnan 655000,China;Hongyun Honghe Tobacco(Group)Co,Ltd,Kunming 650231,China)

机构地区：[1]湖南农业大学生物科学技术学院/烟草研究院/农学院,湖南长沙410128 [2]云南省烟草公司曲靖市公司,云南曲靖655000 [3]红云红河烟草(集团)有限责任公司,云南昆明650231

出　　处：《江西农业大学学报》2018年第2期306-315,共10页Acta Agriculturae Universitatis Jiangxiensis

基　　金：云南省烟草专卖局科技计划项目(2014YN24)~~

摘　　要：基于烟叶质量普查数据,利用地统计学方法分析曲靖烟区烤烟钾含量空间分布特征,并采用方差分析和哑变量回归分析等方法从19个自然因子中辨析影响烤烟钾含量的主控因素。结果表明,曲靖烟区烤烟钾含量平均为1.65%,有94.60%的区域烟叶钾含量<2.0%,为偏低水平;烤烟钾含量的最佳半方差函数模型为指数模型,块金效应为72.68%,空间变异由随机因子和结构性因子共同决定。海拔、地形、质地、土类、p H、有机质、碱解氮、速效钾、有效镁、有效锌、有效硼、有效钼均烤烟钾含量有显著影响,其中土壤类型独立解释能力最大,可以解释8.4%的烤烟钾含量变异,有效硼独立解释能力最小,仅解释0.1%的的烤烟钾含量变异,12项指标累计可解释23.2%的烤烟钾含量变异。Based on the census data of the quality of tobacco leaves,the distribution characteristics of the content of potassium in the flue-cured tobacco in the tobacco growing areas in Qujing were analyzed with a method of geostatistics,and by means of variance analysis and dummy variable regression analysis the main controlling factors affecting the potassium content of Flue-cured tobacco were discriminated from 19 natural factors.The results showed that the mean potassium content of flue-cured tobacco grown in Qujing was 1.65%,the potassium content in 94.60%of the tobacco leaves waw less than 2.0%.The best semi variance function model of the potassium content was an exponential model,the nugget effect was 72.68%,the spatial variability was determined by random factors and structural factors.Altitude,terrain,soil texture,soil type,pH,organic matter,Alkali solution N,available K,available Mg,available Zn,available B,available Mo affected potassium content of flue-cured tobacco leaves.The soil type had the greatest independent ability,which explained 8.4%of the variation of the potassium content of flue-cured tobacco,available boron had the least independent ability,only explained 0.1%of the variation of tobacco potassium content of 0.1%,The total 12 indexes explained 23.2%of the variation of the potassium content of Flue-cured tobacco.

关 键 词：烤烟 钾含量 植烟土壤 曲靖 

分 类 号：S572[农业科学—烟草工业]