7Salt D E, Blaylock M, Nanda--Kumar P B A, et al. 1995. Phytoremediation: a noval strategy for the removal of toxic metals from the environment using plants[J]. Bio Technol, 13:468-474.
8Chancy R L, Malik M, Li Y M, et al. 1997. Phytoremediation sol soil metals[J]. Current opinion in Biotechnology, 8: 279-284.
