In particular, the magnetic treatment of recycled water and 3000 ppm saline water respectively increased celery yield by 12% and 23% and water productivity by 12% and 24%. For snow peas, there were 7.8%, 5.9% and 6.0% increases in pod yield with magnetically treated potable water, recycled water and 1000 ppm saline water, respectively. The water productivity of snow peas increased by 12%, 7.5% and 13% respectively for magnetically treated potable water, recycled water and 1000 ppm saline water. On the other hand, there was no beneﬁcial effect of magnetically treated irrigation water on the yield and water productivity of peas. There was also non-signiﬁcant effect of magnetic treatment of water on the total water used by any of the three types of vegetable plants tested in this study.