Validating equations to estimate subfactor ciii for corn residue cover
Erosion is one of the main causes of soil degradation. Model validation is a vital step in developing a valid and applicable tool to predict soil erosion. The aim of this study was to evaluate models that predict the cover and management subfactor (CiII) for interrill erosion. A full factorial design was used, with five doses of corn residue (0; 0.05; 0.15; 0.40 and 0.80 kg m-2), four slope gradients (5.2%; 10.6%; 15.3% and 36.4%) and two repetitions, under simulated rainfall. Di and the CiII were assessed in 0.5 x 0.75 m experimental plots, with recently tilled soil.