摘要
利用地统计方法和经典统计方法,对云南保山烟区烟叶K含量及其与当地生态因子的相关性进行研究。结果表明：保山烟区各主产县B2F烟叶K含量高低顺序依次为龙陵＞腾冲＞昌宁＞隆阳＞施缅；C3F与X2F烟叶K含量顺序均为腾冲＞龙陵＞昌宁＞隆阳＞施缅。该烟区3个等级烤烟K含量空间变化趋势大体一致,均表现为由西向东和由北向南先降低后升高。烟叶K含量与土壤pH值、土壤有效镁含量在0．05水平上呈显著负相关；而与年降雨量、土壤有机质含量、土壤速效氮含量在0．01水平上呈显著正相关,与有效积温、土壤速效钾、土壤速效磷含量、土壤氯离子含量间相关性不显著。
Relationships between K content in tobacco leaves and ecology factors of Baoshan in Yunnan were researched by used of geostatistics and classical statistics. The result showed that the order of K content in B2F tobacco leaves was Longling 〉 Tengchong 〉 Changning 〉 Longlang 〉 Shimian, but the order was Tengchong 〉 Longling 〉 Changning 〉 Longyang 〉 Shimian in C3F and X2F leaves. Tne spatial variance of K content in three grades tobacco leaves were similar in Baoshan, both were elevated earlier and declined afterward from west to east and north to south. The K content in tobacco leaves were significantly negativecorrelated with soil pH value and available Mg content; but were strongly significantly positive correlated with annually rainfall, soil organic material and available N contents. However, them wasn＇t significantly relatiomhip between K content in tobacco leaves and effective accumulated tempemttLre, soil available K, P and Cl contents.
出处
《安徽农业科学》
CAS
北大核心
2007年第4期1059-1060,1126,共3页
Journal of Anhui Agricultural Sciences
基金
国家烟草专卖局项目(110200401017)资助。
关键词
烤烟
钾
空间变异
生态因子
相关性
Hue-cure tobacco
Kalium
Spatial variance
Ecology factors
Correlation
