Phosphorus retention and release of anions and organic carbon by two andisols

aluminio aluminium andisols andosol andosoles andosols anion aniones anions azufre calcio calcium carbon carbone carbono desorption fer fosforo hierro iron magnesio magnesium manganese manganeso phosphore phosphorus potasio potassium silica silice soil types sorption soufre sulphur tipos de suelos type de sol