Is crop rotation feasible? A linear programming model of scallion farms in the central highlands of Ecuador
1983
Warner, Mark
Extract: The linear programming model described in this paper was built to test whether a rotation including scallions could be feasible, given the small farmers' limited resources of land, labor and capital. The model attempts to determine the optimum production mix of scallions, corn, potatoes, peas and barley, and the optimum time for rotating the scallion fields based on a four year rotation plan. To reflect the problem small farmers have in maintaining a steady cash flow to meet planting and family consumption expenditures, a polyperiod structure is chosen. This structure also enables the model to compare the profitability of various crops based on input requirements, returns and length of growing season.
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