DOROTA WOLICKA1, ANDRZEJ BORKOWSKI1, URSZULA JANKIEWICZ2, WOJCIECH STĘPIEŃ3 and PAWEŁ KOWALCZYK4, 5* 1 Institute of Geochemistry, Mineralogy and Petrology, Faculty of Geology, University of Warsaw, Warsaw, Poland 2 Department of Biochemistry, Faculty of Agriculture and Biology, Warsaw University of Life Sciences – SGGW, Warsaw, Poland 3 Department of Soil Sciences, Faculty...