A special blend of clays extracted from mines at the central part of Mexico which makes the product unique in the market. These clays plus the microelement content in the formula give the product a high Cationic Exchange Capacity (CEC). This mix of clays lets the microelements be gradually released and made highly available to the supplying essential Iron, zinc, Sulfur and other micronutrients to stimulate color, vigor and promote maximum root depth. When added with NPK source it adds all the micronutrients necessary for an optimum fertility program. Greens up yellow lawns Environmentally safe slowly available Source of micronutrients