Assessment of the Bioavailability of Cu, Pb, and Zn through Petunia axillaris in Contaminated Soils

Table 1

Content of some macronutrients in soil samples.

Sample	Elements, %
	K	Ca	Ti	Mn	Fe
1	1.7 ± 0.2	2.3 ± 0.1	0.58 ± 0.05	0.07 ± 0.01	4.10 ± 0.08
2	1.8 ± 0.3	2.6 ± 0.2	0.49 ± 0.03	0.07 ± 0.02	3.52 ± 0.06

Data are mean ± SD, .