الفهرس 
Irrigation efficiency typesOnly 14 pages are availabe for public view
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Abstract
Now saving irrigation water is considered a strategic target of Egypt.
Therefore, the agricultural and irrigation Egyptian policies have been working
to improve the surface irrigation system especially in the farms in the Egyptian
old valley at upper or lower Egypt by using trailing perforated pipes. The main objective of the research is access to find the suitable engineering dimensions of the trailing perforated pipe system effect on uniformity distribution and study its effect on water amount, water saving, water application efficiency, water distribution efficiency, maize crop production and water use efficiency
comparing with gated pipe irrigation system. Results showed that the theoretical determination of the hydraulic analysis of the trailing perforated pipe system is to predict the available pressure head at each outlet.