With Cashcropper you can compare the net profitability and fertility requirements for different crop rotations within a given field. This app is powered by over 30 years of data on crop yield responses to different rotations from trials conducted by the University of Guelph. The app uses default yield values provided by crop insurance records in Ontario and uses the Ontario Ministry of Agriculture, Food and Rural Affairs cost of production defaults as a starting point for the user. The user is able to modify values to better reflect their operation, and increase the accuracy of the calculator for determining an individual’s profitability.