MODELO PARA ASIGNACIÓN DE MÁQUINAS COSECHADORAS A CULTIVOS DE ARROZ

Abstract

In Colombia, the small rice plantations must be associated with nearby ones to decrease the fixed costs of harvesting. These associations contract with third parties the mowing, threshing and cleaning combined machines of the grain. In the search for efficiency, the process of scheduling the dates in which each crop will be served by the combined machines must be managed in a centralized manner, taking into account the different machines efficiencies, the conditions of the land and the cost overruns for violating the windows time associated with the harvest time of the crops. In this sense, this article develops a solution to address the described problem, based on a whole linear programming model which minimizes the overall harvest costs and the costs of harvesting the crops in premature or anticipated moments. The model was validated in one of the associations, which showed results that minimize the total cost of machinery allocation by 7.04%.

Keywords

• allocation of machinery
• management of operations
• mathematical modeling
• rice harvest