Irrigação pressurizada na cultura da banana no projeto gorutuba. II. Uniformidade de aplicação da água.

Abstract

The irrigation uniformity is a fundamental parameter that influences the productivity of the crops and the amount of water to be apllied by irrigation. In this work we evaluated the irrigation uniformity in the banana crop in three systems of pressurized irrigation (microsprinkler, minisprinkler, and under-tree sprinkler) of the Gorutuba project. The uniformity was determined employing three usual methodologies, further with the proposal of a new methodology that reflected special conditions for the banana crop. The results of the systems uniformity indicates an adequate dimension and hydraulics operation of the systems. The Christiansen’s and the distribution uniformity coefficient did not reflected field conditions presenting very low index. The proposed new coefficient, presented consistent results, being a new option for the definition of the irrigation uniformity in the banana crop.