Avaliação da eficiência de irrigação em dois perímetros irrigados da Bacia do Acaraú, Ceará.

Abstract

This work was carried out to get information in relation to irrigation performance at public district of irrigation in Ceará State, Brazil. Evaluations were done at two small farm areas cultivated with banana and grape fruits. Irrigation system was microirrigation (sprinkler). It was developed tests according sixteen methodology. The discharge of 16 emitters was determined in a sub-unit, which was representative of the area. The time of sampled volume was 30 s and it was used three replications. It was estimated the following indicator of irrigation efficiency: CUC, CU, Ea and CV. Results showed up the conditions irrigation system efficiency were good. Although, the system presents a capacity to have a higher used water efficiency, it was necessary a development and implantation of a plan to get and to maintain the irrigation system working in a higher efficiency.