The release of phosphorus, potassium , manganese , zinc , iron , and copper was enhanced by the presence of zeolite in a neutral soil....Zeolites are porous minerals with high cation-exchange capacity that can help control the release of plant nutrients in agricultural systems. Zeolites can free soluble plant nutrients already in soil, and may improve soil fertility and water retention. Because zeolites are common, these unique minerals could be useful on a large-scale in agriculture