Table 1 Soil characteristics of the study site
Soil depth (cm) | 0–10 | 10–20 | 20–30 | > 30 | Average | Fertility level | References |
|---|---|---|---|---|---|---|---|
pH H20 | 5.20 | 5.20 | 4.70 | 4.70 | 4.95 | Strongly acidic | Gurmessa (2020) |
N (%) | 0.37 | 0.27 | 0.34 | 0.27 | 0.31 | Low | Ejigu et al. (2021) |
C (%) | 2.36 | 1.89 | 0.90 | 0.48 | 1.41 | Medium | Ejigu et al. (2021) |
Ca (Cmol/kg) | 5.90 | 6.13 | 5.73 | 5.66 | 5.90 | Medium | Enang et al. (2016) |
Mg (Cmol/kg) | 2.40 | 2.73 | 2.15 | 2.20 | 2.37 | High | Ejigu et al. (2021) |
K (Cmol/kg) | 0.20 | 0.14 | 0.10 | 0.11 | 1.14 | Medium | Ejigu et al. (2021) |
CEC (meq/100 g) | 21 | 17 | 15 | 12 | 16.25 | High | Adzemi et al. (2017) |
Total P (mg kg−1) | 35 | 30 | 22 | 22 | 27.25 | Very high | Kefas et al. (2020) |
Sand (%) | 14 | 8 | 8 | 6 | 9 | – | – |
Clay (%) | 62 | 64 | 70 | 80 | 69 | – | – |
Silt (%) | 24 | 27 | 22 | 14 | 21.75 | – | – |
Textural class | Clayey | Clayey | Clayey | Clayey | Clayey | – | – |