Avaliação da uniformidade e eficiência de aplicação de água em sistemas de irrigação por aspersão convencional

Abstract

The inadequate uniformity of water application in irrigation systems provides to water excess in part of the culture ground and privation in too much, reduce water to the culture and increasing the production value. The objective of this work was to evaluate the uniformity of water application in systems of irrigation for sprinkle irrigation, in culture vegetable in the region of Alto Rio Pacuí, Montes Claros, MG. Methodology applied the calculation of the uniformity coefficients (CUC, CUD, CUE, CUH, UDH), the application efficiency (Ea), the flows and pressures of the systems. The results identified that majority systems operate with uniformity and application efficiency below the recommended. Tubing in leaks, inadequate design of systems, pressure and flow outside the acceptable standards, are factors that contributed to the obtained values the evaluation.