The images captured here show the yield difference in canola when you change soil bulk density from 1.3 g/cm3 to 1.6 g/cm3. The PRS CropCaster is the crop model I use on the farm and with clients. 

Example: Soil bulk density at 1.3 g/cm3 

Example: Soil bulk density at 1.6 g/cm3 (Compacted)