Avaliação da uniformidade de aplicação de água em kits de irrigação para agricultura familiar.

Abstract

Trickle irrigation is a viable method to save water and a drip irrigation system operating at low pressures is desirable to smallholders. Thus, this work had the purpose to evaluate the water distribution using low pressure irrigation systems to small areas. So, 8 irrigation kits were set up at a 1296 m2 tomato field, which was composed by one reservoir at 3 meters high, 7 driplines and one 130 µm screen filter. Five flow rate evaluations in an interval of 20 days during the crop season were conducted to obtain the water distribution uniformity (UD). All UDs were higher than 90 %. Therefore, the irrigation kit using low pressure had excellent performance in water distribution uniformity.