Irrigation development is a gateway to increased agricultural, water and land productivity, increased
household and national food security. However, irrigation development has been a major challenge in
many developing countries, including Egypt. The overall objective of this study is to detect the
influence of different irrigation systems on water-use efficiency, crop and soil salinity in highly soil
salinity. Two techniques were applied in experiment, the first technique was siphon irrigation, and the
second one was gated pipe. The monitored parameters were water table depth, water and soil salinity
and crop yield. The study revealed that the intensive management is a very important aspect for the
success of siphon technique and cotton crop yield was higher by 17% compared to gated pipe
irrigation treatment. The total soil salinity increased in both treatments. The siphon method increases
the average salinity by 2.7% while the gated pipe increased it by 12.9%; converging the value of the
crop coefficient in all relations used in most stages of growth, except Penman relationship which gave
the highest values.