Sublime

In humid regions the water table may have to be lowered in order to provide aerated soil around plant roots and to increase the firmness of the soil for tillage and other farm operations. For this purpose in such regions a network of ditches or tile drains is normally laid out at a depth of three to five feet below the surface.

MARL Calcareous clay–based soil that is “cool” and thus delays ripening, resulting in wines with prominent acidity. Marl is typically deep and lacking in stone fragments; it is the main…

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