Table 1. Physical-chemical and biological properties of composts and peat.
| COM-A | COM-B | COM-C | COM-D | Peat | |
|---|---|---|---|---|---|
| pH | 8.5 c | 8.9d | 8.8d | 6.2b | 5.5a |
| ECa (mS cm-1) | 1.9ab | 2.6c | 1.8a | 3.8d | 2.0b |
| Total organic C (g kg-1) | 433d | 316b | 374c | 273a | 480e |
| Total N (g kg-1) | 25d | 22b | 29e | 24c | 13a |
| P (g kg-1) | 3.7b | 4.0c | 4.0c | 5.6d | 0.3a |
| K (g kg-1) | 24d | 28e | 18c | 16.6b | 0.6a |
| Dehydrogenase activity (mg INT g-1) | 27.2d | 37.0e | 9.4c | 3.2b | 0.32a |
aEC, electrical conductivity.
Data are mean of three replicates. For each parameter, data followed by the same letter are not significantly different according to Tukey’s post hoc test (p≤0.05).