Irrigation & Drainage Systems Engineering

Hawassa University, Department of Water Resources and Irrigation Engineering, P.O. Box 5, Hawassa, Ethiopia

Publications

• Research   
  Improving Water Use Efficiency for Onion Through Deficit Irrigation in Southern Ethiopia
  Author(s): Kedrala Wabela* and Sirak Tekleab
  
  Deficit irrigation is one of agricultural water management practice in arid area in which the irrigation water management has to be improved so that water supply to the crop can be reduced while still achieving high yield. The main objective of this study was to improve agricultural water use efficiency (WUE) of onion under different deficit irrigation levels. Randomized complete block design (RCBD) with eleven treatments and three replications was used. The treatments were: full irrigation (0% deficit as a control), and 25% and 50% of crop water requirement (CWR) deficit throughout growing season, and one period deficit treatments (25% and 50% of CWR deficit at initial, development, bulb formation and maturity stages). Treatment 10 (50% of CWR deficit at bulb formation stage) showed the minimum harvest index (0.68) and 25% of CWR deficit at initial and maturity stages respectively sh.. Read More»
  DOI: 10.37421/2168-9768.2021.10.264

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