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Fig. 5. Measured cumulative infiltration data and corresponding fitted curves for the subsoil no-tillage and native pasture. Inverse fits to cumulative infiltration after the first supply pressure head were obtained using a loglinear piecewise description of the K(h) function (Table 3). Inverse fits for the first supply pressure head are shown in Table 2. Step changes in the supply pressure head are indicated by the symbol 
in the cumulative infiltration plots. The dotted line in the no-tillage graph represents estimated cumulative infiltration obtained by fitting only the VGM constitutive relationships to the entire infiltration curve at all supply pressure heads.
