___

Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. (1998). Crop evapotranspiration: guidelines for computing crop water requirements. FAO irrigation and drainage paper no. 56, Rome, Italy. Accessed 01 November 2018

Barbanti, L., Monti, A., & Venturi, G. (2007). Nitrogen dynamics and fertilizer use efficiency in leaves of different ages of sugar beet (Beta vulgaris) at variable water regimes. Annals of Applied Biology 150: 197–205

Berti, A., Tardivo, G., Chiaudani, A., Rech, F., & Borin, M. (2014). Assessing reference evapotranspiration by the Hargreaves method in north-eastern Italy. Agricultural Water Management 140: 20-25

Dunham, R. J. (1993). Water use and irrigation. In: D A Cooke and R K Scott (Eds), The sugar beet crop science into practice, Chapman and Hall, London, pp. 279–309

Fabeiro, C., Santa Olalla, M., Lopez, R., & Dominguez, A., (2003). Production and quality of sugar beet (Beta vulgaris L.) cultivated under controlled deficit irrigation condition in semi-arid- climate. Agricultural Water Management, 62: 215–227

Guo, B., Li, W., Guo, J., & Chen, C. (2015). Risk assessment of regional irrigation water demand and supply in an arid inland river basin of northwestern China. Sustainability 7: 12958–12973

Hargreaves, G. H., & Samani, Z. A. (1985). Reference crop evapotranspiration from ambient air temperature. In: Winter meeting—American Society of Agricultural Engineers: the world food situation—now and year 2007. ASAE, St. Joseph, Chicago

Hills, F. J., Winter, S. R., & Henderson, D. W. (1990). Sugar beet. In: Stewart B A and Nielsen D R (Eds), Irrigation of Agriculture Crops. Madison, Wisconsin, USA, pp. 795– 810

Jensen, M. E., Burman, R. D., & Allen, R. G. (1990). Evapotranspiration and Irrigation Water Requirements. 1st ed. New York, ASCE

Katerji, N., & Mastrorilli, M. (2009). The effect of soil texture on the water use efficiency of irrigated crops: results of a multi-year experiment carried out in the Mediterranean region. European Journal of Agronomy 30: 95–100

Kiymaz, S., & Ertek, A. (2015). Water use and yield of sugar beet (Beta vulgaris L.) under drip irrigation at different water regimes. Agricultural Water Management 158: 225-234

Micale, F., & Genovese, G. (2004). Meteorological data Collection, processing and analysis. Methodology of the MARS Crop Yield Forecasting System, vol. 1. Italy: European Communities, pp. 100

Rahimi Khoob, A. (2008). Comparative study of Hargreaves’s and artificial neural network’s methodologies in estimating reference evapotranspiration in a semiarid environment. Irrigation Science 26(3): 253-259

Rodrigues, P. N., Machado, T., Pereira, L. S., Teixeira, J. L., El Amami, H., & Zairi, A. (2003). Coping with droughts: feasibility of deficit irrigation of summer crops in Alentejo, Portugal. Accessed 05 November 2018

Pruitt, W. O., & Doorenbos, J. (1977). Empirical Calibration, a Requisite for Evapotranspiration Formulae Based on Daily or Longer Mean Climatic Data. Presented at International Round table Conference on Evapotranspiration. International Commission on Irrigation and Drainage, Budapest, Hungary, pp. 20

Sabziparvar, A. A. & Tabari, H. (2010). Regional estimation of reference evapotranspiration in arid and semi-arid regions. Journal of Irrigation and Drainage Engineering, 136 (10): 724-731

Sharma, M. L., (1985). Estimating evapotranspiration. In: Hillel D (Eds), Advances in Irrigation, vol 3. Academic Press, London

Tan, M., (2018). Mismatch between crop water requirements and irrigation in Heihe River Basin, Northwestern China. Irrigation Science

Tanasijevic, L., Todorovic, M., Pereira, L. S., Pizzigalli, C., & Lionello, P., (2014). Impacts of climate change on olive crop evapotranspiration and irrigation requirements in the Mediterranean region. Agricultural Water Management 144: 54-68

Topak, R., Süheri, S., & Acar, B., (2011). Effect of different drip irrigation regimes on sugar beet (Beta vulgaris L.) yield, quality and water use efficiency in Middle Anatolian, Turkey. Irrigation Science 29: 163-172

Todorovic, M., Karic, B., & Pereira, L. S., (2013). Reference evapotranspiration estimate with limited weather data across a range of Mediterranean climates. Journal of Hydrology 481: 166-176

Uçan, K., & Gencoğlan, C., (2004). The effect of water deficit on yield and yield components of sugar beet. Turkish Journal of Agriculture and Forestry 28: 163–172

Valiantzas, J. D., (2013). Simplified forms for the standardized FAO-56 Penman-Monteith reference evapotranspiration using limited weather data. Journal of Hydrology 505: 13-23 Valiantzas, J. D., (2018). Temperature-and humidity-based simplified Penman’s ETo formulae. Comparisons with temperature-based Hargreaves-Samani and other methodologies. Agricultural Water Management 208: 326–334

Yamaç, S. S., (2018). Estimation of long-term reference evapotranspiration using limited weather data in sugar beet plantation area from Middle Anatolian, Turkey. Süleyman Demirel University Journal of Faculty of Agriculture, 1. International Agricultural Structure and Irrigation Congress Special Issue, 160-165.

Yildirim, O., (1990). Sugar beet yields response to surface drip and subsurface irrigation methods. University of Ankara, Publications of Faculty of Agriculture: 1174, scientific research reports: 648, pp. 16