Department of Agricultural Research, University for Melkasa Agricultural Research Center, Melkassa, Ethiopia
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
Irrigation & Drainage Systems Engineering received 685 citations as per Google Scholar report
