Irrigação pressurizada na cultura da banana no projeto gorutuba. III. Eficiência de irrigação.

Abstract

The north of the state of Minas Gerais has in the irrigated agriculture one way for the developement, since it is fundamental for the region the implantacion and management of systems that give efficiency for the utilization of the hidric resources. We evaluated in eight parcels of ground of the Project Gorutuba, the efficiency of the use of water by the banana crop, irrigated by pressurized irrigation systems: microsprinkler, minisprinkler, and under-tree sprinkler. Great losses by percolation is observed, that was more than 50% of the depth applied in almost half of the parcels of the ground evaluated. The irrigation efficiency reached values of the 79, 64 and 45% for the systems of microsprinkler, minisprinkler, and under tree sprinkler, respectively.