Chalky lands are favorable to the development of the Tuber Melanosporum,Which is why you can come across it in diverse French regions with varied sedimentary formation of limestone.
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However, though limestone is essential to the truffle formation for its culture, the permeability of the soil is just as important : it must be soft (draining), without too much clay in it.

Therefore, it is necessary to apprehend the quality of the soil in which plantations will be carried out.Organic matters play a fundamental role in truffle growing (truffles will benefit from the nutriments and the energy necessary to their growth).
The intake of these matters will entirely depend on the type of work that has been done on the soil.

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Zone production