From: Status of soil organic carbon and nitrogen stocks in Koga Watershed Area, Northwest Ethiopia
Soil properties | Depth (cm) | Land use | |||
---|---|---|---|---|---|
Irrigation farm | Rainfed farm | ||||
Mean ± SD | CV | Mean + SD | CV | ||
SOC (%) | 0–15 | 2.73 ± 0.15 | 0.055 | 2.67 ± 0.16 | 0.059 |
15–30 | 2.34 ± 0.20 | 0.085 | 2.09 ± 0.18 | 0.086 | |
BD (g cm−3) | 0–15 | 1.06 ± 0.21 | 0.198 | 1.07 ± 0.16 | 0.149 |
15–30 | 1.12 ± 0.08 | 0.071 | 1.19 ± 0.17 | 0.143 | |
TN (%) | 0–15 | 0.20 ± 0.04 | 0.200 | 0.18 ± 0.02 | 0.111 |
15–30 | 0.17 ± 0.03 | 0.176 | 0.17 ± 0.03 | 0.176 | |
pH | 0–15 | 5.4 ± 0.44 | 0.081 | 4.9 ± 0.36 | 0.073 |
15–30 | 4.6 ± 0.28 | 0.061 | 4.6 ± 0.19 | 0.041 | |
C:N | 0–30 | 13.71 ± 0.36 | 0.026 | 13.76 ± 0.49 | 0.035 |