Statistical analysis
Variable
df
F-ratio
p-value
ANCOVA
CH4 production
1
388.09
<0.001*
Factorial ANOVA
DOC
1
6.65
<0.05*
Factorial ANOVA
1
5.69
<0.05*
Factorial ANOVA
Carbohydrates
1
8.81
<0.05*
Factorial ANOVA
CH4 concentration
1
498.88
< 0.001*
| Statistical analysis | Variable | df | F-ratio | p-value |
| ANCOVA | CH4 production | 1 | 388.09 | <0.001* |
| Factorial ANOVA | DOC | 1 | 6.65 | <0.05* |
| Factorial ANOVA |
| 1 | 5.69 | <0.05* |
| Factorial ANOVA | Carbohydrates | 1 | 8.81 | <0.05* |
| Factorial ANOVA | CH4 concentration | 1 | 498.88 | < 0.001* |