Hydrosal Ca is a liquid product based on calcium and polyhydroxy carboxylic acids, specifically conceived to contrast the side effects of sodium excess in soil and irrigation water. Thanks to ion exchange, calcium takes the place of sodium, obtaining a better flocculation and salt leaching in soil, thus improving its structure. The product increases the permeability, porosity and water retention in soils, providing a salt leaching effect also in root systems with a consequent better roots development. Both in acid and alkali soils, Hydrosal Ca gradually modifies the pH value, augments the fertilizers absorption and acts as a regulator for calcium deficiencies, even for those crops particularly sensitive (tomato, pepper, lettuce, strawberry, apple).