Magnetic field treatment is considered a safe and cost-effective method of increasing seed germination and emergence. Previous research has demonstrated that water irrigated with magnetic fields affects plant parameters, such as seed germination, root and seedling growth, chlorophyll content, and meristematic cell growth. An experiment was conducted in greenhouse conditions to find the most favourable treatment for obtaining high-value plants and investigate the effect of magnetic water on radish plant growth and soil characteristics. The plants were harvested after 12 weeks. The results revealed that plants irrigated with magnetised water had the highest plant height, stem length, and root length, as well as fresh and dry weight of root and shoot systems. Additionally, Raphanus sativus irrigated with magnetised water achieved better physical soil properties than those treated with non-magnetised water. Overall, the use of magnetically treated water in irrigation can be considered one of the most valuable modern technologies to help improve the quality and quantity of yield. Further investigations of the effect of magnetised water in agriculture are warranted because it is a potentially beneficial technology.