University of Florida Testing Basaltic Rock Dust as Soil Amendment

University of Florida scientists are conducting a four-year study of the potential for using different types of basaltic rock dust as a soil amendment to improve soil quality and boost crop growth. The research includes both organic soil used for row crops and mineral soils in perennial pasture. Researchers say the study results could have implications for soil management in other subtropical areas, potentially aiding in remineralization of depleted soils, contributing to stabilization of organic carbon, and supplying major and micronutrients that could reduce reliance on conventional fertilizers. This study will help evaluate the agricultural benefits and economic viability of applying volcanic rock dust in different particle sizes to crop and pasture land.