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Table 2 Quantities of P Extracted from Calcareous Marsh Soil*

From: Phosphorus retention in calcareous soils and the effect of organic matter on its mobility

Types of P in soil (mg/kg) P by sequential fractionation (mg/kg)
Total Inorganic Organic Residual Olsen Pcb Pd NaOH CB CC CA CBD NaOAc HCl
839 611 122 105 26 111 145 6 127 389 82 37 13 60
  1. Pcb = CB extr; Pcbd = CBD extr.; ca = citrate-ascorbate; CB = citrate-bicarbonate; CBD = citrate-bicarbonate-dithionite; CC = citrate (2extr).
  2. *adapted from ref. [46]