Trace Element Status and Environmental Implications of Soils and Zea mays from Farmed Dumpsites in the Bamenda Metropolis, North-West Cameroon

Table 1

Soil physicochemical properties.

	Nkwen (S1)	Mankon (S2)	Bamendakwe (S3)
pH-H2O	5.68	7.49	5.63
pH-KCl	4.8	7.45	4.45
ΔpH	−0.88	−0.04	−1.18
% N	0.13	0.20	0.15
% OC	2.22	4.44	3.89
% OM	3.83	7.66	6.70
C/N	18	23	26
CEC (cmol(+)/kg)	50.88	48.32	42.72
AP (mg kg^−1)	13.59	52.58	4.51
K (cmol(+)/kg)	0.64	0.64	0.64
Na (cmol(+)/kg)	0.28	0.28	0.28
Ca (cmol(+)/kg)	5.60	5.38	4.64
Mg (cmol(+)/kg)	4.00	2.64	3.04
SB (cmol(+)/kg)	10.52	8.92	8.60
TBS (%)	20.68	18.46	20.13
Sand (%)	40	62	63
Silt (%)	30	24	18
Clay (%)	30	14	19

ΔpH = net charge (pH-KCl − pH-H₂O), OC = organic carbon, N = total nitrogen, OM = organic matter, C/N = mineralization factor, CEC = cation exchange capacity, AP = available phosphorus, SB = sum of bases, TBS = total base saturation, CL = clay loam, and SL = sandy loam.