An integrated model for planning and managing multi-regional mixed-crop farming schemes

An integrated model has been developed for planning and managing multi-regional mixed-crop farming schemes across ecological zones. A net-present-value formula is also developed for calculating the inflation-adjusted net present value of profit per acre of each crop before using it (the adjusted net-present value of profit) as one of the inputs into the model. The model provides the required technical tool for selecting the best sets of crop-combinations and for determining the optimum number of acres of each selected crop to be cultivated in different ecological zones under a multi-regional mixed-crop farming scheme. It also determines the quantity of each harvested crop to be shipped from each of the ecological regions or zones to each of the warehouses covered by the scheme. Furthermore, it determines the amount of expansion/extension needed by each warehouse. The model centralizes all available resources for optimum uses in all the regions. A very simple procedure for optimizing the model is presented. Numerical examples are given to illustrate the model and to investigate the quality of results produced by the optimizing procedure. The results shows that the procedure is very efficient.