JEQ -- Novak and Watts 35 (6): 1975 Figure IG4

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Fig. 4. Regression relations between total P (TP) and (a) oxalate-extractable Al (Al_ox) and (b) oxalate-extractable Fe (Fe_ox) concentrations and P sorption maxima (P_max) concentrations with (c) Al_ox and (d) Fe_ox.