PRO CAL 40 is 99.5% pure calcium sulfate and has a consistency similar to talc making it very reactive in the soil.
It benefits soils through enhancing soil structure, improving water penetration, increasing nutrient availability, enhancing root growth, raising air/water exchange, reducing ill effects of sodium, magnesium and bicarbonates, providing a plant available form of calcium and sulfur, etc. Using PRO CAL 40, we have experienced positive yield benefits in alfalfa, corn, forage grasses, potatoes, soybeans and wheat as well as most vegetable crops. Yield increases in alfalfa often exceed 1 ton/acre, corn and wheat yields have been enhanced 10-30 bushels per acre and soybean yields are usually 4-10 bushels better. Economic returns usually exceed $8 for each $1 spent over the life of the product (3 years).
Calcium Sulfate in the form of PRO CAL 40 is unique in that it can perform in all three categories of soil treatment. As an amendment, a conditioner, or as a fertilizer.