SSSAJ -- Saavedra and Delgado 69 (3): 607 Figure IG3

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Fig. 3. (a) Citrate bicarbonate dithionite P (CBD-P) as related to the amount of Fe extracted in the same fractionation step (CBD-Fe) (Ruíz et al., 1997). (b) The P/Fe mole ratio in CA extracts as related to the ratio CA-Fe/combined Fe fractions.