Basic properties of soil used to fill rhizotubes before growth of plants or culture of microbes
| Soil property | |
|---|---|
| Moisture content (g g−1 DW) | 0.28 ± 0.04 |
| pH | 6.5 ± 0.04 |
| Electrical conductivity (μS cm−1) | 22 ± 1.6 |
| Total C (mg g−1 DW) | 34 ± 3* |
| Total N (mg g−1 DW) | 0.54 ± 0.08* |
| Total soluble C (μmol g−1 DW) | 10.3 ± 0.9 |
| Total soluble N (μmol g−1 DW) | 3.3 ± 0.3 |
| Microbial C (μmol g−1 DW) | 267 ± 42 |
| Microbial N (μmol g−1 DW) | 39 ± 6 |
 (nmol g−1 DW) |
83 ± 12 |
 (nmol g−1 DW) |
249 ± 7 |
| Soil solution amino acids (μmol N l−1) | 42 ± 9 |
| Soil solution < 1 kDa peptides (μmol N l−1) | 107 ± 34 |
1
Values are mean ± SEM; n = 4.
2
Determined for this soil by Farrell et al. (6).