Water usage and water use efficiency of drip-irrigated tomato under deficit irrigation

Berhanu Kebebew, Ketema Zeleke

Research output: Contribution to journalArticle

Abstract

Efficient irrigation is essential for sustainable use of available water resources. A field experiment was conducted on two tomato cultivars(Melka Shola and Melkassa Marglobe) and four irrigation deficit levels (0%ETc, 25%ETc, 50%ETc, and 75%ETc). The objective was to determine crop factor (Kcf) and water use efficiency (WUE). The Kcf values of 0.62, 0.65, 0.70, and 0.71 during the respective four growth stages of the crop were determined. The highest (91.23 kg ha-1 mm-1) and lowest (81.62 kg ha-1 mm-1) water use efficiencies were recorded in 25 and 0% deficit levels respectively. The yield and WUE of Melka Shola cultivar was higher than that of Melkassa Marglobe. Generally, it was found that irrigating the tomato crop with 75% of ETc (i.e. 25%ETc deficit) is the best irrigation practice in the area. In terms of both yield and WUE, Melka Shola tomato cultivar was found to perform better than Melkassa Marglobe.
Original languageEnglish
Pages (from-to)31-34
Number of pages4
JournalJournal of Applied Horticulture
Volume11
Issue number1
Publication statusPublished - 2009

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