Down to Earth Azomite Powder 0-0-0.2 - 5 lb. Box - can improve root system growth, crop yields, quality, and flavors. The slow-release format is virtually dust-free and spreads easily on fields, garden soils, and lawns or can be blended with other fertilizer materials as a trace mineral resource to help meet plant nutritional needs. It can be applied directly or in combination with composts, fertilizers, manures, or soil inoculants. Ingredients: Field grade Azomite powder with varying particle sizes ranging from 4 to 200 mesh.