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Fig. 2. Effects of 0.2 mL addition of soybean (SB) leachate and P on the P sorption of two Oxisols (OX1 and OX2), an Ultisol (ULT) and a Vertisol (VERT) after 1.5 h (____ Control; _ _
_ _ SB) and 6 d (____ Control; _ _ 
_ _ SB). Significant differences in curves– OX1 curves- Control Psb = 65(±5) log Psln + 53(±3); SB Psb = 92(±4)** log Psln + 71(±1)**; OX2 curves- Control Psb = 233(±16) log Psln + 73(±3); SB Psb = 173(±28)* log Psln + 162(±14)** where Psb indicates P sorbed and Psln indicates P in solution.
