It is shown that the values of phosphorus sorption by native soils and thei
r clay fraction are: similar, because all particle-size elements of the soi
ls are covered with a him of hydroxides. By the amount of adsorbed phosphor
us, the soils under study are arranged in the following sequence: soddy-pod
zolic soils < tropical hydromorphic soils < krasnozem < tropical ferralliti
c soils.