00612naa a2200181 a 450000100080000000500110000800800410001910000190006024501460007926000090022565300320023465300210026665300190028765300360030665300260034270000170036877300450038521082262019-04-15 1999 bl uuuu u00u1 u #d1 aAGBENIN, J. O. aRate processes of calcium, magnesium and potassium desorption from variable-charge soils by mixed ion-exchange resins.h[electronic resource] c1999 aChemical exchange reactions aDesorption rates aFilm diffusion aPseudo-thermodynamic parameters aVariable-charge soils1 aRAIJ, B. van tGeodermagv. 93, n. 1-2, p.141-147, 1999