total organically bound Al (Alp), total non-crystalline Al (Alo), weakly
bound complexes of Al with organic matter (Alcu-Alex), highstability
complexes with organic matter (Alp-Alcu), inorganic
non-crystalline Al (Alo-Alp) and pseudo-total content of aluminum
(Alptc) for all the analysed soil samples were determined. In order
to determine the variability and potential availability of aluminum,