Table 1 Properties of materials used for this composting test
Parameter | Earthworm casting | Kitchen waste | Sawdust |
|---|---|---|---|
pH | 7.0 ± 0.1 | 4.9 ± 0.1 | 5.3 ± 0.1 |
EC (dS m−1) | 2.2 ± 0.03 | 7.0 ± 0.1 | 0.25 ± 0.02 |
K (%) | 1.17 ± 0.06 | 0.73 ± 0.09 | 0.01 ± 0.09 |
Ca (%) | 5.02 ± 0.31 | 2.23 ± 0.30 | 0.18 ± 0.01 |
Mg (%) | 1.08 ± 0.15 | 0.23 ± 0.02 | 0.02 ± 0.01 |
Na (%) | 0.26 ± 0.05 | 2.04 ± 0.09 | 0.03 ± 0.01 |
Total Carbon (C, g kg−1) | 81 ± 2.4 | 449 ± 13 | 487 ± 3.1 |
Total Nitrogen (N, g kg−1) | 7.9 ± 0.7 | 51 ± 0.3 | 1.2 ± 0.0 |
Water extractable C (g kg−1) | 1.2 ± 0.05 | 107 ± 13 | 5.6 ± 0.08 |
Water extractable N (g kg−1) | 2.1 ± 0.08 | 16.4 ± 2.1 | 0.27 ± 0.004 |