Effect of Magnetized Water on Water Use Efficiency of Spinach Under North Sinai Conditions

Abstract

An experiment was performed during two successive winter seasons of (2018/2019-2019/2020), at a private farm in Baloza, North Sinai, Egypt, to study the effect of three levels of irrigation water salinity "SL" (1.21, 2.98 and 4.54 dS/m) and four applied irrigation water stresses "IR" (100%, 85%, 70 and 55%) under magnetic (MW) and un-magnetic (UMW) water treatment technique on marketable yield, parameters of crop quality , actual evapotranspiration (ETa), water use efficiency (WUE) and irrigation water use efficiency (IWUE) for spinach leaves by using surface drip irrigation system. The results showed that, the marketable yield and studied quality parameters of spinach leaves gave the highest values when applying treatment SL1 =1.21 dS/m and IR = 100% under MW water for both seasons. While the seasonal ETa of spinach leaves gave the lowest values of 107.91 and 105.10 mm/season for both seasons respectively, when applying treatment, SL1 = 1.21 dS/m and IR = 55% under MW. Finally, the WUE and IWUE of spinach leaves gave the highest values when applying treatment SL1 =1.21 dS/m and IR = 70% under MW. The study concluded that irrigating spinach by using magnetized water may be considered as a promising technique to improve marketable yield productivity and saving a lot of irrigation water added by using surface drip irrigation system.

Rationalization of Water Use and Fertilization of Globe Artichoke Using Magnetic Water Irrigation

“…There was a considerable improvement in the water productivity by applying magnetic water treatment as reported by (Marei, et al, 2014) and Abdel Kareem, 2018). Magnetic treatment is a technique used to achieve high water use efficiency since it has an effect on many physical and chemical properties of soil and water (Maheshwari and Grewal 2009) and save about 15% -30% of irrigation water (Fayed et al, 2021).…”