Abayomi A.Y. (2008) Comparative growth and grain yield response of early and late soybean maturity groups to induced soil moisture stress at different growth stage. Word Journal of Agriculture science. 4(1), 71-78.
Ahmadi, K., Gholizade, H., Ebadzade, H., Hatami, F., Fazli Estabragh, M., Hosseinpoor, R., Kazemian, A. and Rafi’ee, M. (2016) Agricultural Statistics. Ministry of Agriculture Press. Tehran. 163 p. (In Farsi)
Azizian, A., Sepaskhah, A. R., Tavakkoli, A.R. and Zibaie, M. (2007) Economic optimization of irrigation water and nitrogen fertilizer for wheat in different rainfall amounts (in Maragheh region). Journal of Water and Soil Science (Journal of Science and Technology of Agriculture and Natural Resources). 4 (1), 45-57. (In Farsi)
Barati, V. and Ghadiri, H. (2016) Effects of Drought Stress and Nitrogen Fertilizer on Yield, Yield Components and Protein Content of Two Barley Cultivars. Journal of Crop Production and Processing. 20, 191-206. (In Farsi)
Das, H.P. (2003) Water use efficiency of soybean and its yield response to evapotranspiration and rainfall. Journal of Agriculture Physics. 3: 1-2, 35-39.
Draper, N., and H. Smith. (1981) Applied regression analysis. New York, J. Wiley and Sons.
English, M.J., Musick, J.T. and Murty, V.N. (1990) Deficit irrigation. In: Hoffman, G.J., Howell, T.A., and Solomon, K.H. (Eds.). Management of Farm Irrigation Systems. ASAE, St. Joseph, Michigan. pp. 631-66
Fisher, W.D. (1961) A note on curve fitting with minimum deviations by linear programming. Journal of the American Statistical Association. 56:359-362.
Garcia, A., Persson, T., Guerra, L.C., and Hoogenboom, G. (2010) Response of soybean genotypes to different irrigation regimes in a humid region of the southeastern USA. Agricultural Water Management, 97: 981-987.
Ghajar Sepanloo, M. and Bahmanyar, M. A. (2004) Effect of irrigation in different stages of growth on yield, water use efficiency and harvest index of soybean cultivars in Mazandaran. Journal of Agricultural Sciences and Natural Resources of the Caspian Sea. 2, 79-89. (In Farsi)
Ghobadi, R., Shirkhani, A. and Jalilian, A. (2015) Effects of Water stress and nitrogen fertilizer on yield, its components, water and nitrogen use efficiency of corn (Zea mays L.) cv. SC. 704. Agronomy Journal (Pajouhesh & Sazandegi), 104, 79-87. (In Farsi)
Heady, E.O., and J.L., Dillon. (1988) Agricultural production functions. New Delhi, Ludhiana, Kalyani publishers, 667 pp.
Khajepoor, M. R. (2006) Industrial Plants. Academic Center Of Education Culture and Research Press (Isfahan Branch). 564 p. (In Farsi)
Kheyraie, J., Tavakkoli, A.R., Entesari, M. R. and Salamat, M. R. (1996) Deficit irrigation Instructions. IRNCID Press. Tehran. 218 p. (In Farsi)
Kiani, A. and Raeesi, S. (2013) Investigating the water use efficiency of some soybean cultivars under different amounts of irrigation water. Journal of Water and Soil Conservation, Vol. 20(5), 2013, 79-89. (In Farsi)
Kipkorir KK, Reas D and Massawe B, (2002) Seasonal water production functions and yield response factors for maize and onion in perkerra, Kenya. Agric. Water Manage. 56:229-240.
Kirnak, H., Dogan, E. and H. Turkoglu. (2010) Effect of drip irrigation intensity on soybean seed yield and quality in the semi-arid Harran plain, Turkey. Spanish Journal of Agricultural Research, 8(4):1208-1217.
Liu, M. and Li, D. (2010) An Analysis on Total Factor Productivity and Influencing Factors of Soybean in China. Journal of Agricultural Science, 2, 2: 158-163.
MirAkhori, M., Paknejad, F., Ardakani, M., Moradi, F., Nazeri, P. and Nasri, M. (2010) Effect of methanol spray on yield and soybean yield components. Journal of Agroecology. 2, 2, 236-244. (In Farsi)
USDA (United States Department of Agriculture). (2017) World Agricultural Production. Retrieved October 10, 2017, from https://apps.fas.usda.gov
Oweis, T., M., Pala, and J. Ryan. (1998) Stabilizing rainfed wheat yields with supplemental irrigation and nitrogen in a Mediterranean climate. Agronomy Journal. 90:672-681.
Sepaskhah, A. R., Tavakkoli, A.R. and Moosavi, F. (2006) Deficit irrigation. IRNCID Press. Tehran. 287 p. (In Farsi)
Shams Beyranvand, M., Boroomandnasab, S. and Maleki, A. (2014) Effect of Different Irrigation Regimes on Yield Water Use Efficiency and Harvest Index of Soybean Cultivars in Khorramabad. Journal of Irrigation Science and Engineering. 37, 3, 13-20. (In Farsi)
Wagner, H.M. (1959) Linear programming and regression analysis. Journal of the American Statistical Association, 54.206212.