Irrigation & Drainage Systems Engineering

Department of Agricultural Research, University for Melkasa Agricultural Research Center, Melkassa, Ethiopia

Publications

• Research Article   
  Determination of Optimal Nitrogen Fertilizer Rate and Soil Moisture Level for Onion (Allium Cepa L.) in Central Rift Valley of Ethiopia
  Author(s): Ketema Tezera*, Aynalem Gurms, Gobena Dirirsa, Tatek Wondimu, Tigist Worku, Tilahun Hordofa, Abera Tesfaye and Gebeyehu Ashemi
  
  Irrigation is a vital practice in the Central Rift Valley of Ethiopia. However, water scarcity is the major limiting factor to agricultural production and productivity in the area. A field experiment was conducted on clay loam soil at the experimental field of Melkassa Agricultural Research Centre with the objectives of determining optimal Nitrogen fertilizer rate and soil moisture level for the onion yield and water productivity. The experiment was arranged in split-plot design with three replications. The treatments include three soil moisture levels (100% ETc, 75% ETc and 50% ETc) as main plot and four nitrogen fertilizer rates of 23, 46, 69, 92 and no nitrogen as a sub-plot. The highest average bulb yield of 28.6 t/ha was obtained at the full application of irrigation(100% ETc) and the lowest average bulb yield of 22.8 t/ha was recorded at 50% level of irrigati.. Read More»
  DOI: 10.37421/2168-9768.2023.12.371

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