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为探讨优质烤烟生产理想的土壤条件，通过２年烤烟盆栽试验，研究了土壤质地、有机质及ｐＨ值等对烤烟生长及钾素营养的影响。试验条件下，烟叶产量与土壤中粘粒和物理性粘粒百分含量均呈极显著负相关。有机质有增加烟叶产量的作用，对质地轻的土壤尤为突出。通过酸性土上调和下调ｐＨ，中性土下调ｐＨ以及酸性土本身得出的结果，ｐＨ平均５１５～５４３的壤质土对烟株生长、产量以及吸钾量和施钾效果均有好的作用。有机质含量１５～２０ｇ／ｋｇ的酸性壤质土种植烤烟能明显提高烟叶含钾量且施肥的效益好。
In order to explore the ideal soil conditions for the production of high quality flue-cured tobacco, the effects of soil texture, organic matter and pH on the growth and potassium nutrition of flue-cured tobacco were studied by pot experiment in two years. Under the experimental conditions, the yield of tobacco leaves was significantly negatively correlated with the percentages of clay and physical clay in soil. Organic matter has the effect of increasing the yield of tobacco and is particularly prominent on light-textured soils. Through the up-regulation and down-regulation of pH of acidic soil, pH adjustment of neutral soil and the result of acid soil itself, the growth, yield, K uptake and potassium application of loamy soil with average pH value from 515 to 543 Have a good effect. Planting flue-cured tobacco with acidic loamy soil with organic matter content of 15 ~ 20g / kg can obviously increase the potassium content of tobacco leaf and the benefit of fertilization is good.