Soil erosion risk is quantified using the C-value.
Pest risks are likelihood of pest outbreaks that require control in a crop rotation.
CBR was the chosen methodology for system implementation. In CBR, solutions to new problem situations are derived from retrieving and adapting solutions to similar problem situations experienced in the past. Windows operating system. The author grants to Virginia Polytechnic Institute and State University or its agents the right to archive and display their thesis or dissertation in whole or in part in the University Libraries in all forms of media, now or hereafter known. The author retains all proprietary rights, such as patent rights.