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A greenhouse experiment was performed to evaluate the effects of organic amendments (compost and biochar) and vegetation (Brassica juncea L.) on the metal fractionation of Cu, Ni, Pb and Zn in a soil of a depleted copper mine. The influence of organic amendments alone (compost+biochar) and combined with mustard plants (B. juncea L.) was assessed. The addition of increasing doses (20, 40, 80 and 100%)...
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