| Santchou | Bandjoun | Balatchi | |||||||||||||||
Min. | Max. | Mean ± SE | Median | Std. Dev. | CV (%) | Min. | Max. | Mean ± SE | Median | Std. Dev. | CV (%) | Min. | Max. | Mean ± SE | Median | Std. Dev. | CV (%) | |
pH-H2O | 4.70 | 7.50 | 6.32 ± 0.50 | 6.60 | 1.22 | 19.24 | 5.50 | 7.60 | 6.92 ± 0.32 | 7.20 | 0.77 | 11.18 | 5.40 | 6.50 | 5.83 ± 0.16 | 5.75 | 0.38 | 6.57 |
pH-KCl | 3.60 | 6.60 | 5.07 ± 0.56 | 5.05 | 1.36 | 26.94 | 4.10 | 6.70 | 5.88 ± 0.41 | 6.35 | 1.00 | 17.01 | 4.50 | 4.80 | 4.62 ± 0.05 | 4.60 | 0.12 | 2.53 |
∆pH | −1.90 | −0.90 | −1.25 ± 0.15 | −1.15 | 0.36 | −28.96 | −1.40 | −0.60 | −1.03 ± 0.12 | −1.00 | 0.29 | −28.49 | −1.70 | −0.70 | −1.22 ± 0.14 | −1.20 | 0.34 | −27.71 |
TN (%) | 0.11 | 0.20 | 0.15 ± 0.02 | 0.15 | 0.04 | 25.16 | 0.10 | 0.14 | 0.12 ± 0.01 | 0.13 | 0.02 | 12.21 | 0.21 | 0.41 | 0.29 ± 0.03 | 0.27 | 0.07 | 24.29 |
OC (%) | 2.82 | 4.88 | 3.77 ± 0.29 | 3.74 | 0.71 | 18.81 | 2.53 | 4.29 | 3.42 ± 0.25 | 3.44 | 0.60 | 17.60 | 5.24 | 7.65 | 6.18 ± 0.42 | 5.83 | 1.04 | 16.80 |
OM (%) | 4.87 | 8.42 | 6.51 ± 0.50 | 6.44 | 1.22 | 18.80 | 4.36 | 7.40 | 5.90 ± 0.42 | 5.93 | 1.04 | 17.65 | 9.03 | 13.18 | 10.65 ± 0.73 | 10.04 | 1.78 | 16.75 |
C/N (%) | 19.00 | 33.00 | 26.00 ± 2.59 | 26.00 | 6.36 | 24.45 | 23.00 | 34.00 | 28.17 ± 1.83 | 28.00 | 4.49 | 15.94 | 13.00 | 27.00 | 22.00 ± 1.93 | 23.00 | 4.73 | 21.51 |
Available P (ppm) | 13.38 | 185.92 | 69.39 ± 26.09 | 53.34 | 63.90 | 92.08 | 5.68 | 49.71 | 20.73 ± 6.65 | 16.15 | 16.28 | 78.55 | 5.61 | 35.36 | 18.32 ± 3.91 | 17.26 | 9.57 | 52.26 |
K+ (cmol∙kg−1) | 0.74 | 3.76 | 1.75 ± 0.49 | 1.17 | 1.19 | 68.17 | 1.02 | 2.62 | 1.70 ± 0.30 | 1.31 | 0.72 | 42.55 | 0.23 | 1.62 | 0.86 ± 0.22 | 0.75 | 0.55 | 63.75 |
Na+ (cmol∙kg−1) | 0.01 | 0.01 | 0.01 ± 0.00 | 0.01 | 0.00 | 0.00 | 0.01 | 0.34 | 0.29 ± 0.06 | 0.34 | 0.13 | 47.27 | 0.01 | 0.01 | 0.01 ± 0.00 | 0.01 | 0.00 | 0.00 |
Ca2+ (cmol∙kg−1) | 1.52 | 7.04 | 4.01 ± 0.94 | 3.52 | 2.30 | 57.34 | 2.24 | 11.84 | 7.80 ± 1.41 | 8.72 | 3.46 | 44.39 | 1.92 | 7.68 | 4.49 ± 0.77 | 4.64 | 1.89 | 42.17 |
Mg2+ (cmol∙kg−1) | 0.24 | 1.04 | 0.68 ± 0.12 | 0.68 | 0.29 | 41.93 | 0.16 | 3.12 | 1.43 ± 0.40 | 1.24 | 0.98 | 68.90 | 0.64 | 6.08 | 2.73 ± 0.82 | 2.28 | 2.01 | 73.59 |
SCE (cmol∙kg−1) | 3.83 | 10.23 | 6.45 ± 1.02 | 6.19 | 2.49 | 38.62 | 5.32 | 14.00 | 11.21 ± 1.35 | 12.43 | 3.31 | 29.55 | 4.32 | 10.12 | 8.09 ± 0.83 | 8.73 | 2.04 | 25.16 |
CEC (cmol∙kg−1) | 20.32 | 29.28 | 23.79 ± 1.39 | 22.88 | 3.41 | 14.35 | 19.28 | 26.08 | 23.23 ± 1.07 | 23.12 | 2.63 | 11.32 | 19.68 | 29.28 | 22.53 ± 1.41 | 21.28 | 3.46 | 15.36 |
TSC (%) | 16.00 | 48.00 | 28.00 ± 5.41 | 22.50 | 13.25 | 47.33 | 25.00 | 73.00 | 48.83 ± 6.74 | 47.50 | 16.51 | 33.81 | 21.00 | 46.00 | 36.17 ± 3.79 | 37.50 | 9.28 | 25.67 |