Fig. 4. Examples of the best fit lines obtained with Model 1 (air escape) and Model 2 (no air escape) in the silty-clay loam for (a) the control, and for an application of (b) 8, (c) 16, and (d) 24 Mg ha^–1 of deinking secondary sludge; (e) application of 18 Mg ha^–1 of primary–secondary sludge; (f) represents the 24 Mg ha^–1 compost application.