Water Saving With the Use of Different Irrigation Systems Under Egyptian Conditions

Abstract

The performance of three different irrigation systems (drip, sub-surface and sprinkler irrigation) in terms of actual irrigation water requirements, crop yield, water use efficiency and water saving was experimentally investigated under condition of sugar-beet planting in sandy soil. Water saving through the use of the three irrigation systems was studied as a function of change in water regime (100, 75 and 50%) and planting dates (1 Oct., 20 Oct. and 10 Nov.). Water saving was also recorded in the case of planting using compost comparing with the case of planting with no compost. The experimental results reveal to the following:-The highest amount of water saving was recorded under the use of sub-surface irrigation system with 50% water regime in the case of using compost and with delaying planting date to 10 Nov.-The highest values of crop yield and water use efficiency were found under the use of drip irrigation system with 100% water regime in the case of using compost and at 1 Oct. planting date.

Effects of Irrigation Systems on Sugar Beet Yield

“…This indicated that water salinity has a significant impact on WUE. These effects are consistent with those obtained using the same method by Mahmoud and Aboushal 2007, Hajibaland et al 2009, Morad et al 2012.…”

“…However, the yield increased as the water volume increased (the maximum, intermediate, and lowest sugar yields were 4.817, 4.791, and 3.812 t/fed irrigated by 2500, 3250, and 1750 m³/fed/season, respectively). These results are consistent with those obtained by Morad et al 2012, Moursi and Darwesh 2014, Masri et al 2015, El Darder et al 2017 The interactions between the water irrigation treatment conditions (irrigation system, salinity level, and quantity of water) were highly significant for the interactions considered in this examination of sugar yield/fed.…”

“…The surface and subsurface drip irrigation systems produced common root yields of 5.92 and 6.70 (kg/m³), respectively; consequently, the subsurface irrigation system was preferred for irrigating sugar beet under saline conditions. These results are shown alongside those obtained by Morad et al 2012, El Darder et al 2017 When a water salinity level of 6000 ppm was used, the WUE was 7.23 kg/m3, whereas the WUE was 5.39 kg/m3 at 8000 ppm.…”