5196
AHMED EL-SAYED ABD EL-RAHMAN ABD EL-GHANY
DESIGN AND EVALUATION OF MAGNETIC UNIT FOR TREATING SALINE WATER UNDER DRIP IRRIGATION SYSTEM
Design, Magnetic force, saline water, drip irrigation, uniformity, moisture distribution, salt distribution, turnip, yield.
The aim of the present work is to design electro-magnetic unit and evaluation of resulted magnetic force of different saline waters on the germination of different plant seeds laboratory and yield of turnip in a field experiment. The field experiments were conducted at Research and Production Station, El-Noubaria, El-Behaira Governorate (NRC), 2015/2016 in split-plots design. Results could be summarized as following: The average decreasing percentage in water salinity was 14.7 and 32.9 % at 2000 and 4000 Gause magnetic force (MF), respectively. Data noticed that Direct Current voltage (DCV) values had been decreased after passing saline water through MF 2000 and 4000 Gauss with decreasing % in DCV was 5.33 and 3.36 % MF in same sequences, which means that 4000 has a low effect on saline water relative to 2000 Gauss.Barley seeds had a high response, whether for salinity water or magnetic treated one, while the sunflower and wheat had a weak response to salinity and moderate response for the treated magnetic one. Results indicated that any increase in magnetic force associated with improving germination %, especially wheat and sunflower followed by sorghum. Operating time of theuniformity test was one hour and distribution uniformity estimated for known the validation of drip irrigation system for its application in the experimental work were 0.84;89.92% (345 ppm), 0.96; 97.48 % (2000 ppm) and 0.72; 82.36 % (4000 ppm) for DU and EU, respectively. The wetting patterns under the drippers are characterized by the depth of wetting front under the dripper and the radial wetting front at the surface. Both variables under investigation (magnetic force and water salinity) are affected positively by water and salt distribution either before or after irrigation process regarding mainly to the discharge of dripper, application rate or volume of applied irrigation water and water salinity. Canal water has the superior effect on the studied plant characters while salinity water 4000 ppm has a negative effect. Increased salinity irrigation water decrease root density after 2000 and 4000 ppm relative to the control and the same trend wasobserved of the MF where the untreated root density value was higher than MF1000 and 2000 Gauss, where MF enhanced plant characters under salinity conditions. Finally, it could be concluded to using this magnetic force to increase saline water suitability and enhancement crop production especially under smallholders cultivated area and fresh water shortage.
2016
M.Sc
Ain Shams
Agriculture