ARJASR

ISSN: 2360-7874

 Academic Research Journal of Agricultural Science and Research
 

Vol. 7(7), pp. 396-407, November 2019
DOI: 10.14662/ARJASR2019.122
Copy©right 2019
Author(s) retain the copyright of this article
ISSN: 2360-7874
http://www.academicresearchjournals.org/ARJASR/Index.htm
 

Research

Effect of deficit irrigation under different furrow irrigation techniques on onion (Allium cepa L.) in Ada’a district, central highlands of Ethiopia

¹Gebeyehu Tegenu, ²Abraham Woldemichael and ³Tilahun Hordofa

¹Ethiopian Agricultural Research Institute Debre Zeit Agricultural Research Center P.O.Box 32, Debre Zeit, Ethiopia.

Email: gebeyehutegenu@gmail.com  (Corresponding author)

²School of Bio-Systems and Environmental Engineering, Institute of Technology, Hawassa University, Hawassa,

Ethiopia.

³Ethiopian Institute of Agricultural Research (EIAR), Melekassa Agricultural Research Center, Ethiopia.

Accepted 29 October 2019

Onion is one of vegetable crops grown under irrigation in the central highland of Ethiopia. Furrow irrigation is most commonly used method of irrigation. A field study was carried out at the experimental site of Debre Zeit agricultural research center to investigate the effect of furrow irrigation methods and identify deficit irrigation level on crop growth and yield of onion. Treatments include three furrow irrigation methods, viz., alternate, fixed and conventional furrow irrigations and three deficit irrigation levels of 85% crop evapotranspiration (ETc), 70% and 55% ETc and a control irrigation of 100% ETc in split plot design with three replications. A furrow irrigation method was assigned as main plots and the irrigation levels as sub plots. Irrigation water was applied at allowable soil moisture depletion (p=0.25) considered for onion. Analysis of variance indicated furrow irrigation methods and irrigation levels significantly (P<0.01) affected onion growth and yield. The interaction of furrow irrigation methods and irrigation levels had no significant effect on growth and yield of onion. The highest total bulb yields were obtained from alternate furrow irrigation and control irrigation of 100% application. Among the deficit irrigation, 85%ETc gave significantly higher yield, plant height, number of leaves and leaves length.

Key words: Alternate furrow irrigation, Conventional furrow irrigation, fixed furrow irrigation.

How to cite this article (APA Style): Gebeyehu T., Abraham W., Tilahun H (2019). Effect of deficit irrigation under different furrow irrigation techniques on onion (Allium cepa L.) in Ada’a district, central highlands of Ethiopia.. Acad. Res. J. Agri. Sci. Res. 7(7): 396-407