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    Öğe
    Comparative research on water and energy-saving irrigation systems in the GAP and Aegean regions of Turkey
    (Inderscience Publishers, 2004) Sener, Sabri; Cetin, Oner
    This research was carried out to determine the effects of furrow, sprinkler, drip, mobile nozzle, mobile drip and LEPA (Low Energy Precision Application) irrigation methods on the yields and Water Use Efficiency of cotton in the South Eastern Anatolian Project (GAP) Area and in the Aegean Region. According to the results obtained, the highest yield was produced from the drip irrigation method. The drip, sprinkler and mobile nozzle forms of irrigation require 31, 28 and 26% less irrigation water respectively than furrow irrigation when related to the optimum yields and the feasible irrigation water quantities in the GAP Area. The drip irrigation method has utilised the irrigation water more efficiently than the other methods. LEPA and mobile drip did not show any significant difference in the effective use of irrigation water compared to furrow irrigation. Similar results were obtained in the Aegean Region of Turkey. Copyright © 2002 Inderscience Enterprises Ltd.
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    Öğe
    Performance of Sprinkler Irrigation Systems at Different Pressures and Under Varying Wind Speed Conditions in Landscape Areas
    (Univ Philippines Los Banos, 2009) Demirel, Kursad; Sener, Sabri
    Wind speed is an important parameter that affects water application efficiency in sprinkler irrigation systems. In this study, the water distribution patterns of different sprinkler heads (pop-up spray, pop-up rotor and classic rotor) used in landscape areas were determined at different pressures (minimum,, optimum and maximum) and under varying wind speed conditions (0-3, 3-6 and 6-9 m s(-1)). The experiment was conducted in the Agricultural Experimental Station of Canakkale Onsekiz Mart University, Canakkale, Turkey. The single sprinkler head test method was used to determine the water distribution pattern. The non-corrected and corrected Christiansen's coefficient of uniformity (CU) and distribution uniformity (DU) values for each sprinkler head were determined. Non-corrected CU and DU values varied from 40-92% and from 34-87%, respectively. Corrected CU and DU values varied from 57-96% and from 43-92%, respectively. Based on the research results, higher wind speeds had a negative effect on the water distribution pattern of sprinkler heads. Performance values (CU) and (DU) of the sprinklers should be higher at suitable pressure conditions. The wind effect was most visible on the water distribution pattern of rotor sprinkler heads.
  • [ X ]
    Öğe
    Performance of sprinkler irrigation systems at different pressures and under varying wind speed conditions in landscape areas
    (2009) Demirel, Kursad; Sener, Sabri
    Wind speed is an important parameter that affects water application efficiency in sprinkler irrigation systems. In this study, the water distribution patterns of different sprinkler heads (popup spray, pop-up rotor and classic rotor) used in landscape areas were determined at different pressures (minimum, optimum and maximum) and under varying wind speed conditions (0-3, 3-6 and 6-9 m s -1). The experiment was conducted in the Agricultural Experimental Station of Canakkale Onsekiz Mart University, Canakkale, Turkey. The single sprinkler head test method was used to determine the water distribution pattern. The non-corrected and corrected Christiansen's coefficient of uniformity (CU) and distribution uniformity (DU) values for each sprinkler head were determined. Non-corrected CU and DU values varied from 40-92% and from 34-87%, respectively. Corrected CU and DU values varied from 57-96% and from 43-92%, respectively. Based on the research results, higher wind speeds had a negative effect on the water distribution pattern of sprinkler heads. Performance values (CU) and (DU) of the sprinklers should be higher at suitable pressure conditions. The wind effect was most visible on the water distribution pattern of rotor sprinkler heads.