Avaliação de coeficientes de uniformidade em sistema de aspersão barra móvel

Abstract

Many coefficients are used to express the variability in water distribution applied by a sprinkler irrigation system on the soil surface. The objective of this work is to demonstrate, by means of comparison, which is the best uniformity coefficient in mobile bar irrigation among five models taken from. The experiment had three repetitions, it was carried out at the Experimental Station of the Federal University of Rondonópolis - UFR (16º27'41.75 "S 54º34'52.55" O, altitude of 292 m). The climate of the locality is tropical savanna with dry season in autumn / winter and the rainy season in spring / summer according to the Köppen classification is Aw. The area's soil is classified as a dystrophic Red Latosol, with flat relief. The experiment was conducted in three lines with varying distances, each line has 16 collectors with 1m spacing. There was a significant variation between the uniformity coefficients, concluding that there is an ideal model to assign the mobile boom type irrigation system.