The low biodegradability of synthetic chelating agents used for phytoextraction poses a great environmental risk due to the potential for metal leaching. Natural chelating agents can be an alternative to synthetic chelates due to their rapid biodegrability. The study aimed to compare the performance of natural organic acids (gallic, citric, and oxalic) to synthetic chelates/acids EDTA, DTPA, and NTA for induced phytoextraction of Pb, Cu and Zn by corn (Zea mays) and velvetbean (Stizolobium aterrimum). Soil samples were contaminated to […]