surface irrigation efficiency in non-consolidated fields in dez irrigation network

this study was conducted to evaluate the current management of furrow and border irrigation systems in the dez irrigation network. of the eight farms studied, three grew wheat and one each grew corn, sugar beets, lettuce, sesame and mung beans. the study found water application efficiency in the five farms with furrow irrigation systems to be 25.8% and for the three farms with border irrigation systems to be 32.7%. the main reason for water loss was found to be runoff and deep percolation. scs infiltration equation parameters were calculated using the obtained data. for each farm, conditions were simulated using the scs equation. methods for optimum irrigation were developed based on variables such as discharge inflow, furrow/ border length and cut-off time and cut-back methods.