Improving Performance of Surface Irrigation System by Designing Pipes for Water Conveyance and On-Farm Distribution

Abstract

For successful design, implementation, and achievement of the leading area development program, systematic evaluation of various components of the existing irrigation system is necessary. Adequate monitoring and evaluation of performance are needed in order to determine how much irrigation water to apply; it is needed to estimate irrigation efficiency. There are many definitions of irrigation efficiency. Which one to use depends on which aspect one is interested in. A development plan, especially in a water-short area, improved and efficient water management practices can help to maintain farm profitability in an era of increasingly limited and more costly water supplies. Seepage loss in irrigation water conveyance and distribution systems is very significant as it forms the major portion of the water loss in the irrigation system. Irrigation conveyance losses controlled through piping may reduce the drainage requirement and enhance irrigation efficiency. As such, reliable estimates of quantities and extent of seepage losses from the conveyance and distribution canal become important. To achieve high performance in the surface irrigation system, it must be designed to irrigate uniformly, with the ability to apply the right depth at the right time. Properly designed, installed, maintained, and managed irrigation system greatly reduces the volume of irrigation water and hence saves energy and money. The water applying with best depth at the right time is maximizing performance with the surface irrigation system. So, it can save energy and money.