INVESTIGAÇÃO DA UNIFORMIDADE DE DISTRIBUIÇÃO DE ÁGUA EM PIVOT’S CENTRAIS NA REGIÃO DE PIRACANJUBA - GOIÁS

Abstract

Irrigation is crucial and of great importance for agricultural production in arid, semi-arid or irregular rainfall regions. It consists of a set of techniques that seek to move water to a certain region, so that it can correct the natural distribution of rainfall. This study aims to evaluate the uniformity of distribution and the efficiency of water application of five central pivot irrigation systems in the municipality of Piracanjuba, GO. In the field, to confirm whether the planned conditions are being carried out accurately, the equipment's operating parameters such as service pressure, flow rate and water depths applied were evaluated. Five central pivots were analyzed in order to compare the results of water distribution uniformity. For this purpose, standardized water collectors were used to evaluate the estimated depth being applied by the central pivot. The water was collected and a spreadsheet was created with the data, already transformed into millimeters of precipitation. Uniformity coefficients were used, which are valuable tools for visualizing and measuring the distribution of water over the soil, allowing a careful analysis of the efficiency of irrigation systems.