Abstract
Abstract The paper presents the impact of varied fertilisation with sewage sludge on the concentration of cadmium and copper in willow organs during the first three years of cultivation. The lowest mean concentration of cadmium in Salix viminalis biomass was found in the plantation fertilised only with mineral fertilisers. The mean content of copper in the biomass of plants fertilised with mineral fertilisers was higher than the content of this metal in plants grown in non-fertilised soil by 23.4%. It has been shown that the method of fertilisation does not have an impact on the cadmium allocation in different organs. The highest content of cadmium and copper in the willow biomass was found in the foliage (1,76 mg/kgd.m. and 12,73 mg/kgd.m. respectively).
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