Effect of Nitrogen Fertilizer Rates on Seed Yield and Oil Quality of Linseed (Linum Usitatissimum L.) Varieties in Welmera District, Central Highland of Ethiopia. J. sci. sustain. dev. [Internet]. 2020 Jul. 29 [cited 2026 Oct. 28];8(2):62-73. Available from: https://ojs-dev.ethernet.edu.et/index.php/jssd/article/view/150