الفهرس 
Title : Performance study of sprinkler irrigation system in Sudan
AbstractOnly 14 pages are availabe for public view
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Abstract
Field experiments were carried out during the agricultural season of 2015/2016, in order to study three riser heights, three discharges and three operation pressures for a lateral sprinkler system performed at the demonstration farm of Shambat area at university of Khartoum, Sudan. The aim of this paper was to study the effect of weather conditions, pressure, riser height and discharge on the performance of sprinkler irrigation system in Sudan. To achieve the work goal, two types of impact sprinkler (single and dual nozzles), three riser heights of 50, 75 and 100 cm, three pressures 1.5, 2 and 2.5 bar and three discharges 337.5, 450 and 562.5 L/h for single nozzle sprinkler and 414, 552 and 690L/h for dual nozzles sprinkler were tested to study the effect of these types on christiansen’s coefficient of uniformity (CU%), uniformity of distribution (DU%), moisture distribution patterns, precipitation rate and wind drift and evaporation loses (WDEL). The results obtained from this study revealed that, impact sprinkler single nozzle under 50 cm riser height produced the best uniformity coefficient and uniformity of distribution, precipitation rate and the lowest Wind drift and evaporation loses (WDEL %). Precipitation rate and (WDEL) were significantly affected by pressure and riser height. The sequence of the different sprinkler types according to moisture distribution was found to be in a descending order, so that overlapping with 4 sprinkler > overlapping with 2 sprinkler> solid set sprinkler. The sequence of the different types according to the volume of water stored in the soil profile was found to be in a descending order so the impact sprinkler dual nozzles> impact sprinkler single nozzle