Fig. 2. F-values for effect of (A) treatment and (B) size determined in analysis of variance for the parameter estimated by the different methods for the Maury soil. LIN-2 = linear regression, two-parameter Weibull model; NLIN-2 = nonlinear regression, two-parameter Weibull model; ML-2 = maximum likelihood, two-parameter Weibull model; NLIN-3 = nonlinear regression, three-parameter Weibull model; ML-3 = maximum likelihood, three-parameter Weibull model.