2015 Skripsies MJ Appel, 2015. A decision support system for the strategic planning of crop allocation on This content is restricted to site members. If you are an existing user, please log in. New users may register below.Existing Users Log InUsername or EmailPassword Remember Me Forgot password? Click here to resetNew User RegistrationChoose a Username*First Name*Last Name*Email*Input the code:*Required field