| OMA | OM | OA |
P (%) | 0.14 a | 0.18 b | 0.15 a |
K (%) | 1.05 b | 0.78 a | 1.12 b |
Ca (%) | 1.31 a | 1.18 a | 1.68 b |
Mg (%) | 0.46 a | 0.49 a | 0.40 a |
Na (%) | 0.39 b | 0.52 c | 0.27 a |
CIC (cmol∙kg−1) | 38.9 c | 35.1 b | 32.8 a |