Simulation and comparative analysis of surge, continuous and cutback irrigation on different soil types / Nadia Rasmy Mohamed Attia ; Supervised Kamal Eldeen Milad Soliman , Mostafa Ahmed Ghaith

Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

A primary goal of good irrigation management is to minimize deep percolation losses. Surge flow irrigation is a tool which applies water to furrows as a series of pulses 2on3 and 2off3 time periods. The main objective of this study is to characterize the behavior of the advance of water front in furrow into soil profile using surge irrigation. Moreover is to determine the application efficiency and distribution uniformity. This was done by adopting different furrow lengths at single and two field slopes in surge flow irrigation under different types of soil with high and low infiltration. Previously collected data from field experiments at Sakha Agricultural research station, Kafer Elsheikh; Egypt was used. Maize was cultivated using new surge flow irrigation technique and compared with continuous flow irrigation. SIRMOD Model is applied to simulate water advance for surge flow irrigation with fixed and variable cycle time, continuous irrigation, and continuous irrigation with cutback systems. Evaluation of performance indicators has been studied for irrigation systems and for different soil types. Showed that when comparing different irrigation systems, surge flow irrigation with variable cycle time gave higher overall efficiency at high infiltration soil

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