Open Access Research Paper Views (1585) Interaction Effect of Blended (NPSB) Fertilizer Rates and Seed Sources on Yield Components and Seed Quality of Bread Wheat (Triticum aestivum L) Varieties in Southern Ethiopia Yohannes Erkeno Handiso, Mulugeta Abebe Mamo Int. J. Biosci. 21(5), 159-171, November 2022. DOI: http://dx.doi.org/10.12692/ijb/21.5.159-171 Keywords: Blended fertilizer, Germination, Productivity, Seed source, Vigour index Details