Nurga, Yetagesu; Alemayehu, (PhD) Yibekal; Abegaz, (PhD) Fentaw
(Haramaya university, 2019-03)
Scarcity of water is the most severe constraint for development of agriculture in arid and
semi-arid areas. Under such conditions, the need to use the available water economically and
efficiently is indisputable. The ...