ANÁLISE DA EFICIÊNCIA DO USO DA ÁGUA NA FRUTICULTURA IRRIGADA DO VALE DO AÇU NO RIO GRANDE DO NORTE.

The aim of this paper is analyze of water use in irrigated fruit growing in the Açu Valley / RN during the great drought was the microregion in the period 2012- 2015, specifically the case of mango and banana producers. To this, they were used as Data Envelopment Analysis (DEA) techniques with the objective of improving the technique efficiency and sub-vector efficiency to measure water efficiency. The subocean evaluation results show that, on average, 43% of the hoses were efficiency in water use. Efficiency levels for banana growers were even higher, reaching 28%. Therefore, the patterns of use of irrigated water in the Açu Valley can be optimized maintaining the same level of production, requiring a change in this direction. [ABSTRACT FROM AUTHOR]