Magnetic water treatment is considered as one of many techniques used worldwide that affects plant growth and development.This study examines whether there are beneficial effects of magnetic treatment of irrigation wa...Magnetic water treatment is considered as one of many techniques used worldwide that affects plant growth and development.This study examines whether there are beneficial effects of magnetic treatment of irrigation water on yield and water productivity as well as water saving.Three experiments were performed involving three crops(eggplant,faba beans and tomato)with different salinity tolerance thresholds ECw 0.7,1.1 and 1.7 dS/m,respectively.Two types of irrigation water were applied magnetically treated and non-magnetically treated.The experiments were carried out at Wadi EL Natroon station of Water Management Research Institute,El-Behira Governorate,Egypt during two sequentially winter seasons of 2015/2016 and 2016/2017 in a complete randomized design analysis with four replicates.There was a decrease of pH of the soil irrigated with magnetically treated water(MTW)compared with the non-MTW.The pH reached neutral values in some locations,especially the area cultivated with the faba beans(pH between 7.05 and 7.08).Results showed significant increases of water productivity for the MTW compared with non-MTW equal to 1.65,1.88 and 1.78 for eggplant,faba beans and tomato,respectively.It was also observed that the MTW affected the amounts of irrigation water added to different crops during its growing period.The percentages of water savings were 11%,13.5%and 14.2%for eggplant,faba beans and tomato,respectively.As a result the net return increased by 1.97,3.0 and 2.45 for the three crops,respectively.展开更多
文摘Magnetic water treatment is considered as one of many techniques used worldwide that affects plant growth and development.This study examines whether there are beneficial effects of magnetic treatment of irrigation water on yield and water productivity as well as water saving.Three experiments were performed involving three crops(eggplant,faba beans and tomato)with different salinity tolerance thresholds ECw 0.7,1.1 and 1.7 dS/m,respectively.Two types of irrigation water were applied magnetically treated and non-magnetically treated.The experiments were carried out at Wadi EL Natroon station of Water Management Research Institute,El-Behira Governorate,Egypt during two sequentially winter seasons of 2015/2016 and 2016/2017 in a complete randomized design analysis with four replicates.There was a decrease of pH of the soil irrigated with magnetically treated water(MTW)compared with the non-MTW.The pH reached neutral values in some locations,especially the area cultivated with the faba beans(pH between 7.05 and 7.08).Results showed significant increases of water productivity for the MTW compared with non-MTW equal to 1.65,1.88 and 1.78 for eggplant,faba beans and tomato,respectively.It was also observed that the MTW affected the amounts of irrigation water added to different crops during its growing period.The percentages of water savings were 11%,13.5%and 14.2%for eggplant,faba beans and tomato,respectively.As a result the net return increased by 1.97,3.0 and 2.45 for the three crops,respectively.
