الفهرس 
1 IntroductionOnly 14 pages are availabe for public view
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Abstract
To implement this purpose, the following instructions were made, effect of using
magnetized irrigation water (MIW) under center pivot irrigation system on potato
through: - management irrigation system to reduce quantity of used irrigation water.
The study was carried out in Farms of Farm Frites, Egypt in Wady El- Natroon–
Elbehira governorate, during two consecutive seasons, namely the winter season 2018
and the summer season 2019. In order to achieve the main objective of this study
under four experimental factors were studied:- 1st factor irrigation water; treated and
non-treated by magnetized irrigation water,2nd factor crop evapotranspiration (110,
100, 90, and 80%),3rd factor soil salinity; low and high soil salinity (1.46 and 4.56
Ds/m) and 4th factor potato tubers Santana cultivar with seed diameters (28-35,35-45,
45-50 and 50up mm).Three measurements; water and soil chemicals analysis, foliage
of plants (leaf area index, number of stems per square meters) and tubers (yield of
tubers (Mg/ha), tuber diameters and benefit cost of potato tubers).
Results the same in two seasons compared between MIW and N-MIW under center
pivot irrigation system on potato resulted to:
Decrease in soil salinity before and after harvest of potatoes about 17.5 and 13.3% in
low and high soil salinity, decrease soil PH about 5.7 and 3.4% in low and high soil
salinity compared between MIW and N-MIW .Increase in leaf area index of plants
during growing of plants 13.5 and 11.5 % in low and high soil salinity compared
between MIW and N-MIW. Increase production in yield and tubers diameters of
potatoes about 11.5 and 22.5% in low and high soil salinity and decrees 10% from
used of irrigation water.
Used magnetized irrigation water on potatoes to improve quality of potatoes and
to increase from dry matter and seed diameters of potatoes about 20-22% in low
and high soil salinity.