Preyank Solar Calcium Nitrate 15.5:00:00+18.8CA is another specialty fertilizer that uses calcium and nitrate to make the soil better for crops. It is a fertilizer made up of two nutrients, with a white granular appearance that dissolves quickly in water and can be absorbed rapidly by plants. It is an perfect combination of 15.5% nitrogen in nitrate form that rapidly dissolves in water and 18.8% calcium. It promotes the healthy growth of the plant. Grofast calcium nitrate Calcium nitrate is a soluble source of calcium. Calcium derived from grofast strengthens the reconstruction and safety mechanism of plant cells. Time for use - Before the first irrigation of the crop. At the time of filling of soil on potatoes and sugarcane.