Page 127 - Soil Degradation, Conservation and Remediation

4.6 Wind Erosion Control Measures 115

Fig. 4.5 Residue management in a ridged field (Photo courtesy of USDA-NRCS)

Fig. 4.6 Residues of the previous wheat crop form effective mulch (Photo courtesy of USDA-NRCS)

form effective cover mulch. However, residues must be spread and anchored to
the soil surface by a packer or an anchoring agent such as cutback asphalt or asphalt
emulsion. Depending on residue type, minimum amounts needed to control wind
−1
erosion are 5–10 t ha .