The results above reported do not take into consideration the
total amount of metals extracted by the plant, which depends on
the total plant yield. Total heavy metal uptake by the shoot of the
plant was calculated by considering the production of plant dry
matter (Control ¼ 58.9 1.9 g plant1; Soil amended with
OFMSW ¼ 62.8 2 g plant1; Soil treated with
EDDS ¼ 5.0 0.2 g plant1) and the relative heavy metal concentration
(mg kg1 plant dry matter) (Fig. 2). In this case, the results
obtained were quite different from those reported earlier. The
highest performances were achieved by soil amended with
OFMSW, with the exception of Cd and Pb (Fig. 2). Soil treated with