Use of Hydrophilic Insoluble Polymers in the Restoration of Metal-Contaminated Soils

Table 4

Relative growth of several cultivated species grown in soils contaminated with metals.

		Growth
Metals	Plant species	(×growth in unamended soil)	Reference
Cu	Perennial ryegrass	11	[39]
Cu	Annual medic	4	[46]
Pb	Orchardgrass	3000	[22]
Pb, Cu, and Zn	Perennial ryegrass	21	[40]
Cd	Orchardgrass	6	Unpublished results