Eldeiry, Ahmed, authorGarcia, Luis, authorEl-Zaher, Ahmed Samy A., authorKiwan, Mohammed El-Sherbini, authorColorado State University, publisher2020-01-292020-01-292004https://hdl.handle.net/10217/200032http://dx.doi.org/10.25675/10217/20003224th annual AGU hydrology days was held at Colorado State University on March 10-12, 2004.Includes bibliographical references.This paper presents a simplified method for furrow irrigation system design for clay soils in arid regions. Field experiments were conducted for a furrow irrigations system at an experimental site in Egypt with clay soils, cultivated with cotton and irrigated by a three-turn crop rotation. Several parameters were measured including the furrow geometry, slope, furrow width, furrow length, infiltration characteristics, advance time, cut-off time, depletion time, and recession time. A volume balance model was applied to simulate water flow in the furrow system and the results were compared to those obtained from the field measurements. This study shows that a volume balance model can be satisfactorily applied to clay soils and the length of the furrow and its inlet discharge are the main factors affecting application efficiency. Also, this study indicates that in order to obtain high application efficiencies, one must use low discharge rates for small furrows and as the furrow length increases the discharge must also increase, and that furrow length can be increased with higher soil moisture contents.born digitalproceedings (reports)engCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Text