تأثير مغنطة مياه الري و إضافة الكبريت للترية على إنتاجية و كفاءة استخدام المياه لمحصول الباذنجان تحت الري بمياه مختلفة الملوحة

Abstract EN

A field experiment was conducted in the agricultural research station of king Abdulaziz university located in hada al-sham, 110 kilometers south-east of Jeddah, ksa to identify the effect of irrigating with magnetic saline waters , water salinity level and sulfur amendment addition to the soil at rates of 0, 5 and 10 tons per hectare on the crop production and water use efficiency of eggplant.

five irrigation water salinity level namely: 2000, 4000, 6000, 8000 and 10000 mg/l were used to irrigate the eggplant before and after passing through a magnetic field.

results indicated that, magnetic water increased crop yield and water use efficiency under saline irrigation water compared with nonmagnetic water.

the yield and the water use efficiency were 18.99 and 15.63 t/ha and (2.01 and 1.84 kg/m3 for magnetic water compared to 11.41 and 9.39 t/ha and 1.21 and 1.10 kg/m3 for non-magnetic water during the both growing seasons respectively.

for sulfur addition, the yield and the water use efficiency increases were 19.11 and 15.73 t/ha and (2.02 and 1.85 kg/m3 ) for the 10 t/ha sulfur, followed by 14.74 and 12.13 t/ha and 1.56 and 1.41 kg/m3 for the 5 t/ha sulfur compared to 11.74 and 9.66 t/ha and 1.24 and 1.13 kg/m3 for 0 t/ha sulfur addition during both growing seasons respectively.

therefore, it is recommended to use magnetic water and sulfur amendment addition with a rate of 10 tons per hectare when using saline irrigation water to improve crop production and water use efficiency.