The addition of phosphorus (P) significantly increased the root (13.0 %) and shoots (19.3 %) lengths in vetiver seedlings at 1000 mg/l Pb + 680 mg/l P treatment compared to the control (Figuer-1 a, b).
Plant biomass that denotes plant growth is an important factor for successful application of phytoextraction since its effectiveness depends on both plant biomass and elemental concentrations in a plant.