Tesfaye, Yared; Alemayehu, (PhD) Yibekal; Adare, (M.Sc.) Kiya
(Haramaya university, 2019-06)
Tef is a highly valued crop in the national diet of Ethiopians and the major crops grown in
Adola District, Guji Zone, Oromia Region. However, its productivity is low due to declining soil fertility as result of intensive ...