That ain't tobacco. Its well-being, and your smoking pleasure, are affected by any number of influences upon the plant. Depending upon tobacco's stage of growth, any number of pests, viruses, molds or bacteria can victimize it. Hostile agents aside, this issue will address how the growing medium itself the soil can affect the viability of the crop and the market value of the leaf. The soil's consistency, ignoring the nutrients it contains, determines the quality of the plant and whether it will even grow.
Tobacco likes a loose, porous soil like sandy loam.
It dislikes having wet feet as much as you or I, so heavy clays that hold water discourage its growth. Limey soils will produce leaves like crazy, but they'll be tasteless. Both the soil of the germinating beds where the seeds spend their first six weeks of life, and the permanent fields where they mature, require preparatory treatment. This is touchy business too hot a fire will damage the soil structure, which retards the seedlings' growth. American tobacco growers sometimes sterilize soil by laying large metal pans on it and pumping steam through attached tubes, or by sprinkling a formaldehyde solution into the soil.