the effect of Cd on growth of the aerial biomass is also
critical [6]. Fig. 1 showed the combined effect of Cd contamination
in the presence or absence of the two fertilizers on shoot growth of
S. nigrum.When Cd was increased to 50mgkg−1, 37.4% reduction in
shoot biomass was observed, indicating the Cd contamination was
adversely affecting growth of S. nigrum (Fig. 1).