Tadesse*, T. ., Tadesse, Z. ., Assega, H. ., & Abeychew, . D. . (2019). Determination of Optimum Seed Rate and Row Spacing of Upland Rice in Amhara region, Ethiopia . Abyssinia Journal of Science and Technology, 4(2), 1–9. https://doi.org/10.20372/ajst.2019.4.2.91