Table 11.
Concentrations of extractable micronutrients in soils of Soke and Woybo irrigation schemes.
| Micronutrients (mg kg−1) |
|||||
|---|---|---|---|---|---|
| Iron (Fe) | Manganese (Mn) | Copper (Cu) | Zinc (Zn) | Site | |
| Depth (0–20 cm) | |||||
| 44 | 29.2 | 1 | 3.8 | Soke | |
| 19.5 | 28.4 | 1.3 | 4.2 | ||
| 28.2 | 36.2 | 0.9 | 2.6 | ||
| 33.4 | 33.8 | 1.2 | 5.5 | Woybo | |
| 45.6 | 30.3 | 0.8 | 3.5 | ||
| 45.2 | 36.4 | 0.8 | 3.6 | ||
| CV (%) | 29.95 | 10.97 | 20.98 | 24.79 | |
| Depth (20–40 cm) | |||||
| 24.2 | 16 | 0.9 | 2.4 | Soke | |
| 17.6 | 13.3 | 1.1 | 3.1 | ||
| 20.2 | 21.2 | 0.8 | 1.6 | ||
| Micronutrients (mg kg−1) |
|||||
|---|---|---|---|---|---|
| Iron (Fe) | Manganese (Mn) | Copper (Cu) | Zinc (Zn) | Site | |
| 19.4 | 16.2 | 0.8 | 1.9 | Woybo | |
| 40.4 | 29.8 | 0.7 | 2.7 | ||
| 42.1 | 27.8 | 0.7 | 3.1 | ||
| CV (%) | 40.34 | 32.78 | 18.07 | 25.21 | |
| Depth (40–60 cm) | |||||
| 17.2 | 12.6 | 0.8 | 1 | Soke | |
| 12.7 | 12.3 | 0.6 | 1.8 | ||
| 22.5 | 19.1 | 0.7 | 0.2 | ||
| 10.2 | 5.4 | 0.9 | 0.7 | Woybo | |
| 35.8 | 19.9 | 0.7 | 1.9 | ||
| 39.1 | 22.7 | 0.6 | 2.1 | ||
| CV (%) | 52.61 | 41.72 | 16.31 | 59.43 | |
where CV = coefficient of variation.