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)|