Análise comparativa de um projeto de irrigação semiportátil, com diferentes configurações, para a cultura do feijão.

Abstract

The cost of implantation and the net income of an irrigation project for bean crop were analysed in two regions with 7 and 4 mm of evapotranspirometric daily demand. The sprinkles spacings, motors (eletric and Diesel) and adduction conditions were evaluated. In both regions, the best results with regard to net income were obtained with the electromotor, 16 hours daily work and suitable adduction condition. The spacing of 18x18 m in all the treatments showed the best results regarding the net income. The project can be infeasible depending on the adduction condition.