This book will help to improve cereal productivity in general and tef production in particular in small and large scale farms. It explains about the performance of Tef [Eragrostis Tef (Zucc.) Trotte] under different water levels and N-P fertilizer rates in Northern Ethiopia. It includes the agronomic performance of Tef by applying water and N-P fertilizer rate of Grain yield, aboveground dry biomass, Harvest index, Lodging %, Water use efficiency, Partial budget analysis and yield component parameters. It also provided additional information about the Ethiopian Tef production system and other research results which help as literature to university lecturers and students, researchers and other people who are increased to work in agriculture sector.