Site | Crop type | C (g∙kg−1) | N (g∙kg−1) | C/N | C (Mg∙ha−1) | N (Mg∙ha−1) | Exchangeable bases (cmolc∙kg−1) | CEC | ||
Ca++ | Mg++ | K+ | ||||||||
WGCC | Maize Coffee | 20.6 ± 5.2a 44.6 ± 5.2b | 1.8 ± 0.4a 4.4 ± 0.5b | 11.4 ± 0.9a 10.1 ± 0.7a | 58.9 ± 12.6a 109.5 ± 11.9b | 5.2 ± 0.9a 10.9 ± 1.0b | 10.9 ± 1.3a 16.5 ± 3.7a | 5.9 ± 0.9a 3.6 ± 0.4a | 0.6 ± 0.2a 1.8 ± 1.1a | 20.1 ± 2.1a 28.8 ± 2.3b |
Gotu | Maize Khat | 30.2 ± 0.9a 32.6 ± 8.0a | 2.8 ± 0.2a 3.1 ± 0.7a | 11.4 ± 0.7a 10.5 ± 0.5a | 74.2 ± 0.6a 79.1 ± 17.2a | 6.9 ± 0.5a 7.5 ± 1.5b | 14.6 ± 1.1a 16.9 ± 1.2a | 2.8 ± 0.4a 5.1 ± 0.6b | 0.6 ± 0.1a 1.8 ± 0.5b | 19.2 ± 1.5a 24.5 ± 1.6a |
Finance | Maize Coffee Sugarcane | 15.1 ± 1.6a 40.2 ± 1.2b 20.1 ± 0.8a | 1.3 ± 0.1a 3.4 ± 0.2b 1.8 ± 0.2a | 11.6 ± 0.7a 11.8 ± 0.9a 10.6 ± 0.6a | 43.5 ± 4.8a 97.9 ± 6.7b 58.5 ± 6.4a | 3.7 ± 0.3a 8.5 ± 0.5b 5.4 ± 0.6a | 8.8 ± 1.2a 16.4 ± 1.4b 14.2 ± 0.8b | 3.9 ± 0.6a 4.4 ± 0.7a 3.0 ± 0.8a | 3.9 ± 0.6a 3.0 ± 0.8a 1.0 ± 0.1b | 15.8 ± 1.2a 27.1 ± 4.9b 19.1 ± 1.1a |
Chaffee | Maize Khat Sugarcane | 24.7 ± 1.4a 26.7 ± 4.1a 20.7 ± 0.6a | 2.3 ± 0.2a 1.7 ± 0.5a 2.0 ± 0.3a | 10.7 ± 0.6a 10.4 ± 1.0a 11.4 ± 1.7a | 62.5 ± 3.1a 65.1 ± 10.4a 56.1 ± 2.7a | 5.9 ± 0.4a 5.5 ± 0.4a 5.3 ± 0.8a | 13.6 ± 1.0a 11.8 ± 0.6a 13.3 ± 0.1a | 4.0 ± 0.8a 4.2 ± 1.5a 5.3 ± 2.0a | 1.0 ± 0.1a 1.1 ± 0.1a 0.7 ± 0.1b | 22.4 ± 1.1a 26.4 ± 2.4a 24.3 ± 2.1a |