The research has demonstrated the potential and the limitations of combining experimental fieldwork with modelling to optimize agricultural water productivity for Teff cultivation. Focusing on only experimental fieldwork is a single approach, and is hardly ever sufficient for achieving the best solutions to the current water management problems. New guidelines on using the combined effort of experimental work in the field to produce field experimental data and using models are clearly needed. It is to these needs as well as to the required increase of Teff production under water scarce conditions that this research has provided its main contribution.

1 Introduction
2 Background and objectives
3 Materials and methods
4 Brief descriptions of the Awash River Basin and the study area
5 Crop water productivity of irrigated Teff in a water stressed region
6 Teff (Eragrostic Tef) Crop Coefficient for effective irrigation planning and management in the semi-arid Central Rift Valley of Ethiopia
7 Application of AquaCrop in crop water productivity of Teff (Eragrostic Tef), a case study in the Central Rift Valley of Ethiopia
8 Optimum irrigation application in irrigated Teff: moving away from exclusively rain dependent agriculture
Conclusions and recommendations
References

Yenesew Mengiste Yihun (Addis Ababa, Ethiopia 1982) studied Agricultural Engineering and Mechanization at Debub University, Awassa, Ethiopia, and graduated with BSc.degree in 2004. She was employed by the Ministry of Agriculture and Rural Development in Komobolcha Agricultural Training, Vocation and Educational Training College (KATVET) as Instructor in October 2004. In October 2006, she received scholarship called CIDA-SARIC from Sweden Government to pursue her Master of Science (M.Sc.) study in Haramya University. Then she joined the school of Graduate Studies of Haramya University and graduated in Soil and Water Engineering (Irrigation Engineering) in 2008. After she completed her second degree she moved to Mekelle University, worked as Lecturer and researcher in the college of Dry Land Agriculture and Department of Land Resource Management and Environmental Protection (LaRMEP). In addition to teaching regular courses and undertaking a research, she was also working as higher official of the Mekelle University as Quality Assurance dean of the college of Dry Land Agriculture. Moreover, she has served as principal investigator in Dutch Government sponsored research project - NORAD II on Improving Irrigation Water Management Practices through Deficit Irrigation to attain food security, a case study in Geregera watershed, Atsbi Womberta District, Tigray, Ethiopia.

In July 2009 she got a full scholarship from Netherlands Fellow ship Programme (NUFFIC) for her PhD study in UNESCO-IHE, Institute for water education, Department of Water Science Engineering, Delft, the Netherlands. Her PhD research is on Agricultural Water Productivity Optimization for Irrigated Teff (Eragrostic Tef) in a Water Scarce Semi-Arid Region of Ethiopia. She writes a competitive research proposal so that she wins a research fund from International Foundation for Science (IFS).