Calcium Nitrate enhances the uptake of potassium, magnesium, and calcium from the soil, as these are positively charged and fixed in the soil. The negative charge of nitrate releases them from the soil and thus promotes their uptake as the solution of calcium nitrate sprayed on leaves to roots also.
Nitrate increases soil pH, a combined effect of increased pH and strengthening of cell walls by calcium controls cluck root disease in brassica crops.
Foliar spray of Calcium Nitrate fertilizer during critical growth stages prevents bitter pit in apples, end rot in tomatoes and peppers, and flowering and fruit dropping