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Accumulation of Rare Earth Elements in Corn after Agricultural Application

State Key Lab. of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Science, P.O. Box 2871, Beijing 100085, P.R. China

View larger version (30K): [in a new window]   Fig. 1. Concentrations of rare earth elements (REs) in corn roots, stems, and leaves after application of the REs mixture in the pot experiment. Data are expressed as the average concentration (n = 4). Standard deviations are given in Tables 3 to 5, respectively. The RE concentrations represent the added concentration of La, Ce, Pr, Nd, Sm, Gd, and Dy

View larger version (27K): [in a new window]   Fig. 2. Concentrations of rare earth elements (REs) in corn roots (A), stems (B), and leaves (C) at different days after application of the REs mixture and in flower and grain (D) at the day of harvest in the plot experiment. Bars represent the concentration of La, Ce, Pr, Nd, Sm, Gd, and Dy