GRANULAR ROCK PHOSPHATE (GRP)
Jerch Farmington Granular Rock Phosphate is a natural, slow-release source of phosphorus derived from sedimentary phosphate rock.
Unlike water-soluble P fertilizers, GRP contains phosphorus primarily in the form of tricalcium phosphate “Ca3(PO4)2”. In acidic soils “pH < 5.5", common across Ghana’s Forest and Savannah zones, soil acids gradually solubilize the phosphate, releasing plant-available H2PO4- ions over an extended period.
The granular form improves handling, reduces dust, and ensures uniform field application.