Calcium is a major component in the development of cell wall formation and structure. Calcium also helps in regulating nutrient uptake by the roots and movement through the plant. Green-T® Sugar Cal is a unique calcium source containing sorbitol also known as mannitol which creates a sugar calcium chelate. The chelating agent encapsulates the calcium ion. When used in a program with other nutrients Green-T Sugar Cal makes the other nutrients more available. This in turn improves plant health. It is not recommended to mix the Green-T® Sugar Cal with phosphate fertilizers.