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Table IV
P status of the two growing media (standard deviation).
| Mineral soil | Forest floor | ||
|---|---|---|---|
| Total P (mg P g−1) | 0.084 (0.005) | 0.412 (0.008) | |
| Organic P (mg P g−1) | 0.048 (0.001) | 0.395 (0.009) | |
| Microbial P (mg P g−1) | 0.007 (0.003) | 0.112 (0.004) | |
| Inorganic P in solution (mg P g−1) | 1.2E-5 (3.6E-6) | 2.2E-3 (1.6E-4) | |
| Gross amount of P ions exchanged | 0.0012 . t 0.33 | ||
| in t minutes (mg P g−1) |