磷在不同质地土壤中的吸附和解吸

he objective of this study was to study sorption and desorption of phosphorus in sandy soil, silt loam soil, light loam soil, and clay soil. Results show that the sorption of phosphorus is dependent on the amount of clay in the soil. The adsorption isotherm can be modeled with Langmuir, Freundichm and Temkin equations and the Freundlich model gives the best results. The desorption isotherm can be divided into three parts, indicating three different detachment energies kinetics of the adsorbed phosphorus.