From: Status of soil organic carbon and nitrogen stocks in Koga Watershed Area, Northwest Ethiopia
Land use | Mean SOC (%) +sd (0–15 cm) | Mean SOC (%) + sd (15–30 cm) | Pr (> F) |
---|---|---|---|
Irrigation farmland | 2.73a ± 0.15 | 2.34b ± 0.20 | 0.0196* |
Rainfed farmland | 2.67c ± 0.16 | 2.09b ± 0.18 | 3e−06** |
Significant level | ‘**’ 0.01 | ‘*’ 0.05 |