Wubie, A. A., Damot, G. A., & Herrero, V. F. (2019). Effect of N, P and Farmyard Manure on Noug (Guizotia abyssinica Cass.) Yield in Ebinat District. Journal of Agriculture and Environmental Sciences, 1(2). https://doi.org/10.20372/jaes.v1i2.172