Computational modeling for irrigated agriculture planning. Part I: general description and linear programming

Engenharia Agrícola

João C. F. Borges Júnior²  Paulo A. Ferreira¹  Camilo L. T. Andrade¹  Bettina Hedden-dunkhorst¹ 

[1] ,UFRPE Academic Unit of Garanhuns Garanhuns PE ,Brazil

关键词: irrigation requirement;    financial return;    simulation model;    requerimento de irrigação;    retorno financeiro;    modelo de simulação;   

DOI  :  10.1590/S0100-69162008000300008

来源: SciELO

【 摘 要 】

Linear programming models are effective tools to support initial or periodic planning of agricultural enterprises, requiring, however, technical coefficients that can be determined using computer simulation models. This paper, presented in two parts, deals with the development, application and tests of a methodology and of a computational modeling tool to support planning of irrigated agriculture activities. Part I aimed at the development and application, including sensitivity analysis, of a multiyear linear programming model to optimize the financial return and water use, at farm level for Jaíba irrigation scheme, Minas Gerais State, Brazil, using data on crop irrigation requirement and yield, obtained from previous simulation with MCID model. The linear programming model outputted a crop pattern to which a maximum total net present value of R$ 372,723.00 for the four years period, was obtained. Constraints on monthly water availability, labor, land and production were critical in the optimal solution. In relation to the water use optimization, it was verified that an expressive reductions on the irrigation requirements may be achieved by small reductions on the maximum total net present value.

【 授权许可】

CC BY   
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