CalciSoil® is a naturally occurring mineral fertilizer derived from ocean deposits formed centuries ago. CalciSoil® performs in all three categories of soil treatment: an amendment, conditioner, and fertilizer. It improves physical and chemical properties of soil while its calcium and sulfur content provides essential nutrients for plants which ultimately results in improved overall plant growth and higher crop yield. Being moderately soluble, CalciSoil® is a natural controlled release fertilizer that feeds plants over many months with no adverse effect on human, animals and environment. It is also used as a raw material for the manufacture of fertilizers.