DEVELOPMENT OF SURFACE IRRIGATION USING SURGE IRRIGATION TECHNIQUE

摘要

A field experiment was conducted at Research Farm, Faculty of Agriculture, Kafrelsheikh University, Egypt, during successful growing season 2016/2017. Its location at the Northern part of the Nile Delta, 31° 07' N Latitude and 30° 57' E Longitude and 6 meters above sea level. The experiment was included two different irrigation methods (surge with cycle ratio 1/2 and continuous irrigation), three furrow lengths were used 20, 30 and 40 m and three different inlet discharges were used, (12.24, 24 and 44.4 ? /min) to irrigate the maize crop. The results can be summarizing as follows: surge irrigation caused to decrease in mean advance time about 11%, also obtained the highest mean value of water use efficiency was 1.70 kg/m~3 at flow rate of 12.24 ? /min and furrow length of 40m. The highest mean value of grain yield (3920 kg/fed) at flow rate of 12.24 ? /min and furrow length of 40m under continuous irrigation, also the highest mean value of applied water was 2430.89 m~3/feddan achieved at flow rate of 12.24 ? /min and furrow length of 30m with continuous irrigation. The inflow rate treatment of 44.4 ? /min achieved the highest value of mean water saving by 14.47 % under surge irrigation technique.