CURVE DI ADSORBIMENTO IN FOSFORO DI SUOLI SOGGETTI A DIVERSE FERTILIZZAZIONI NEL LUNGO PERIODO

In areas of intensive agricolture continuous applications of fertilizers can lead to an accumulation of phosphorus in the soils and progressive saturation of their sorption capacities, increasing the risk of P losses to aquatic ecosystems. THe long term evolution of soil P has been studies in a factorial expesument comening three soils with three types of fertlizitation . The P saturation was determined by calculating the P adsorpotion curves by the langmvir equation along 1m depth profile.