Texture, pH, total organic carbon (C), total nitrogen (N), total phosphorus (P), C/P ratio, and r1 min/R in the Leptosol, Podzol, and Cambisol. TOC and N were determined with an
element analyzer. Total P was measured with ICP-AES (Spectroflame, Spectro). r1 min/R is the percentage of 33P orthophosphate that can be recovered from the soil 1 min after
its addition to the soil. The values depict means that were calculated from independent analyses of three soil profiles per soil type. Values in brackets depict standard
deviations.