Fertigation, the practice of delivering fertilizers through irrigation systems, is emerging as an effective approach for sustainable nutrient management. By supplying nutrients directly to the root zone, fertigation improves nutrient use efficiency, reduces fertilizer losses, and lowers input costs for farmers. This review explores the principles and benefits of fertigation, including enhanced crop growth, yield optimization, and environmental protection through minimized nutrient runoff. It also examines technological tools, system designs, and best management practices that support precise nutrient delivery. Challenges such as system maintenance, initial investment, and farmer training are discussed, along with strategies to promote wider adoption in different cropping systems.
