Wpływ odczynu gleb na zawartość Zn. pn, Ni i Cd w roślinach wybranych użytków zielonych Pogórza Wielickiego i Podhala

The aim of studies was to determine the total contents of Zn, Pb, Ni and Cd in soil profiles and in sward plants on selected grasslands of Wieliczka Foothills and Podhale, as well as to estimate the correlation between the concentration of above mentioned metals in the soils, soil pH-values, and their contents in overground parts of the plant. The influence of pH on the absorption of investigated heavy metals by plants of grassland sward in case of Cd and Ni was statistically significant. The Cd content in dry matter of sward plants taken from the major part of investigated grasslands exceeds the admissible limit of this metal concentration in the fodder. Only in sward taken from carbonate soils, the content of Cd is lower than 0.5 mg/kg d.m.