TABLE 4.
Test results of the fixed main effects in the generalized linear mixed models for soil carbon pools in soil.
| Management | Soil carbon pools* | |||
| SOC20 cm | SOCeq | Cmic20 cm | Cmiceq | |
| Crop sequence | ||||
| Monoculture | 6.69 | 5.30 | 86.4 | 69.6 |
| Crop rotarion | 6.79 | 5.42 | 88.6 | 72.4 |
| Tillage system | ||||
| Plow | 6.37a | 5.24a | 80.0a | 65.9a |
| Reduced tillage | 6.76b | 5.29a | 88.3b | 71.3b |
| No-till | 7.08c | 5.54b | 94.2c | 75.7c |
*Soil Organic Carbon (SOC; kg m−2) and Microbial Biomass Carbon (Cmic; g m−2) in the soil profile either calculated as carbon content on 20 cm top soil or as equivalent soil mass (eq; 200 kg m−2; ≈15 cm depth). The number of observations (n) is 24 for each response variable. aThe different letters refer to statistically significant differences within each comparison; p≤0.05.