Table 2 Concentrations of major elements in clay soil samples
Element | Ado Ekiti | Ara-Ijero Ekiti | Ire Ekiti | Isan Ekiti | Orin Ekiti |
|---|---|---|---|---|---|
Range | Range | Range | Range | Range | |
(Mean ± SD) | (Mean ± SD) | (Mean ± SD) | (Mean ± SD) | (Mean ± SD) | |
No of Sample | 5 | 5 | 5 | 5 | 5 |
Fe2O3 (%) | 1.9-17.4 | 4.9-14.4 | 3.5-16.4 | 6.0-22.3 | 2.8-12.7 |
(10.5 ± 7.7) | (11.1 ± 3.9) | (9.7 ± 5.2) | (16.2 ± 6.2) | (7.9 ± 3.9) | |
TiO2 (%) | 1.2-4.7 | 3.6-5.7 | 0.8-4.2 | 6.2-10.4 | 1.3-4.2 |
(3.2 ± 1.7) | (4.9 ± 0.9) | (2.8 ± 1.2) | (7.6 ± 1.6) | (2.9 ± 1.4) | |
CaO (%) | 0.9-6.5 | 1.0-3.5 | 0.2-2.5 | 2.3-4.7 | 0.2-5.0 |
(3.9 ± 2.4) | (2.3 ± 1.0) | (1.2 ± 0.9) | (3.3 ± 0.9) | (1.6 ± 1.3) | |
K2O (%) | 1.2-9.9 | 3.8-9.2 | 0.6-5.8 | 5.3-9.0 | 0.7-9.5 |
(3.2 ± 1.7) | (5.8 ± 2.0) | (2.8 ± 2.0) | (6.3 ± 1.5) | (4.4 ± 3.3) |