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利用GPS定位,3年间在全省50个烟叶主产县采集1846个植烟土壤耕层土样进行分析。结果表明,贵州植烟土壤交换性钙、镁含量变幅大,平均分别为5.13 cmol kg-1和1.03 cmol kg-1,达丰富水平,两者分别高于1.00cmol kg-1和0.2cmol kg-1敏感指标的土壤样本分别占96.5%和95.6%。两者与土壤pH值呈显著的正相关性。
The use of GPS positioning, 3 years in the province’s 50 major tobacco-producing counties collected 1846 soil samples of tobacco cultivation soil for analysis. The results showed that the contents of exchangeable calcium and magnesium in tobacco planting soil in Guizhou varied greatly with the average levels of 5.13 cmol kg-1 and 1.03 cmol kg-1, respectively, which were higher than 1.00 cmol kg-1 and 0.2 cmol kg -1 sensitive index soil samples accounted for 96.5% and 95.6% respectively. There was a significant positive correlation between pH and soil pH.