We have all type of sands available for sandblasting of crops, silicas sands, limestones and metamorphic clays (slates), These sands have a low chemical activity. For more information about those products, please contact us.
The sand layer which covers the soil acts as a permanent mulch, preventing water evaporation by capillarity.
It is even better in a greenhouse because the humidity is lower, and this greatly facilitates the handling of the weather conditions.
It softens the soil fluctuation temperatures since the sand acts as energy exchanger.
The mobility of some elements, such as phosphorus, is linked to the temperature of the ground. Sand coverage, while maintaining the tempering, provides stability and thermal inertia which enables the availability and assimilation of the element, even in the cold season. It is very difficult to find deficiencies of this element in sanded soil, because of cold.
Since the capillary ascension of the soil is so little or even null, the salts which may be added at each irrigation do not add up to the ones going up because the new irrigation will drag them underground.