OUDA, S.A.E.-F., ELENIN, R.A., SHREIF, M.A.K., BENLI, B. and QADIR, M. 2019. Prediction of Soybean Yield and Water Productivity under Defi cit Irrigation Using Yield-Stress Model. International Journal of Natural and Engineering Sciences. 2, 2 (Jul. 2019), 05–12.