Table 6.

Translocation factor (TF) for Zn, Fe, Cd, and Ni in Zea mays L. under different treatments.

Metal	Amendment content
		1%	3%	5%
Zn	Sewage sludge	0.438	0.361	0.405
	Biochar	0.550	0.538	0.529
Fe	Sewage sludge	0.042	0.055	0.058
	Biochar	0.033	0.045	0.053
Cd	Sewage sludge	1.091	0.867	1.229
	Biochar	1.116	1.233	1.288
Ni	Sewage sludge	0.341	0.268	0.366
	Biochar	0.272	0.272	0.156