Rock Phosphate by Espoma

Rock Phosphate 0-4-0 by Espoma

Rock Phosphate is a natural rock mined from phosphorus-rich deposits. The rock is washed free from clay impurities and heated to remove moisture. It is then mechanically ground to a fine powder. Espoma® Rock Phosphate is the finest, highest grade, all natural rock phosphate available. It is far superior in total phosphate content to all other natural forms of rock phosphate including black and colloidal rock phosphate.

Benefits of Rock Phosphate:
Organic source of phosphorus & micronutrients
• Rock phosphate contains 32% total phosphate (P2O5). Phosphorus is an essential nutrient required by plants that is primarily responsible for healthy root development and fruit and flower production. In addition, rock phosphate is rich in minor elements such as boron, zinc, nickel and iodine which plants need in small amounts for optimum growth.

Long term, slow-release feeding as the plant needs it
• Rock Phosphate becomes naturally available, as the plant needs it. Plant roots give off carbon dioxide and certain organic acids which react with the rock phosphate in the soil, making it available for plant use. Because Espoma® Rock Phosphate is ground to a fine powder, a sufficient part of it is immediately available to the plant because the particles are so tiny that the organic acids and carbon dioxide produced by the plant roots and bacteria in the soil can break them down quickly. 

Directions for using Rock Phosphate
Light Application: 2 lbs. per 100 square feet
Medium Application: 5 lbs. per 100 square feet
Heavy Application: 10 lbs. per 100 square feet

Broadcast or spread Espoma Rock Phosphate evenly over the entire area. It is recommended that the rock phosphate be incorporated into the soil before seeding or planting. For application during the growing season use the light rates shown above.

Locating Espoma Products
Espoma products can be found in most independent garden centers. For the closest store near you go to Espoma\'s Web Site or call 1-800-634-0603.


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