The main technical element of a natural grass field is drainage. To this end, SAMA adopts the "SAMA RETICULAR SYSTEM", a self-moistening draining system that ensures perfect functionality. Before executing the turf, it is necessary to prepare the substrate with suitable physico-chemical analysis of the soil in order to know the possible deficiencies and put in place the relative corrections of the physical and chemical composition of the soil itself. Depending on the seasonality, it will be possible to evaluate whether to perform a direct sowing with a mixture of suitable seeds, reeling or stolonization. The field will be completed with automatic system of retractable sprinklers to ensure optimal coverage of the field and a water supply necessary for the growth and maintenance of the lawn.