الفهرس 
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Abstract
The experiment was carried out over the 2021 growing seasons in farm at Basos, Al-Qanater El Khayreya, Al-Qalyubia governorate at (30° 10’ 48”N - 31° 12’ 36”E). The site is about 19 m above sea level with an annual rainfall of (21 mm.year-1), the wind speed was 2.6 m/s, relative humidity was 60.1 % and temperature Max 30.7˚ C. established in late of August (2021).
The main objective of this study:
The aim of this study was to evaluate the effect of using magnetic treatment of saline water for irrigation of tomato by different saline water concentrations on growth parameters as well as irrigation water use efficiency (IWUE), and soil salinity disruption under different dripper discharges.
Experimental treatments.
a plot experiment designed to contain three factors, dripper discharge (4Lph and 8Lph for Q1 and Q2 respectively), saline water (S1= 2000, S2=4000 and S3=6000 ppm) and magnetic treatments [magnetic (M) and nonmagnetic (NM)]
The main results:
1- The highest yield value corresponded with magnetic water treatment (M) by (7 Ton.Fed-1) and the lowest mean value was (4.4 Ton.Fed-1) with (NM) treatment. In addition, with saline water treatment data observed with highest yield mean value by (10.4 Ton.Fed-1) under (2000PPM) but the low significant value was recorded with (6000PPM) by average (1.9 Ton.Fed-1). On the other hand, yield obtained (6.2 Ton.Fed-1) as an average with dripper discharge (4Lph); however, the lowest yield value recorded under (8Lph) by (5.1 Ton.Fed-1).
2- The irrigation water use efficiency (IWUE) was recorded (3.28 Kg.m-3) under magnetic treatment (M) but with non magnetic treatment the mean value was (2.07 Kg.m-3). However, by increasing water salinity from 2000 to 4000 to 6000 PPM the mean (IWUE) decreased significantly from (5.0 to 2.13 to 0.9 Kg.m-3) respectively.
3- Soil salinity disruption (EC) has significant influence for magnetic that was recorded (5.21 dS.m-1) under non magnetic treatment (NM) but with magnetic treatment the value was (4.66 dS.m-1). The (EC) decreased by magnetic.
Cleary, Results reveal that the magnetically treated saline water has the potential to enhance yield and growth parameter under different saline water levels.