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A modified hydroponic experiment was focused on the influence of mutual changes in the Ca/Mg ratio and trace elements (Cd and Pb) concentration in solution on the efficiency of low molecular weight organic acid (LMWOA) formation in the Salix viminalis rhizosphere. The study showed that changes in the LMWOA contents were caused by the Ca/Mg ratio as well as the kind and concentration of trace element...
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