Fertility Evaluation of Limed Brazilian Soil Polluted with Scrap Metal Residue

Table 2

Total element content, available content of heavy metals, and fertility evaluation of the original soil samples studied.

Soil fertility attributes^a
Soil	OM	pH	P	K	Ca	Mg	H+Al	CEC^f	SB^g
	g kg^−1		mg kg^−1	mmolc kg^−1					%
SC^d	23.2	5.2	39.0	2.3	90.8	27.6	28.0	149.0	80.6
SA4^e	26.6	7.5	25.0	2.8	285.0	66.8	9.0	363.0	97.6
	S	B	Cu	Fe	Mn	Zn	Cd	Cr	Ni	Pb
	mg kg^−1
SC^d	6.4	0.23	5.3	55.0	52.3	1.9	0.1	<0.1^c	0.6	1.5
SA4^e	56.0	14.9	29.8	47.4	15.6	325.0	0.8	0.1	2.5	18.3
Total content^b
	Cd	Pb	Cu	Cr	Ni	Zn	Ba	B	Mn	Fe
	mg kg^−1									g kg^−1
SC^d	2.5	13.2	30.2	18.5	7.0	38.1	107	1.8	544	30
SA4^e	8.2	268	160	103	47	2450	241	62	498	66

aKabata-Pendias and Pendias 2001 [25].
^bUSEPA 2007 [19].
^cLower than detection limit.
^dSC: uncontaminated soil.
^eSA4: contaminated soil (subarea 4).
^fCEC: cation exchange capacity.
^gSB: base saturation.