The adoption of Internet of Things (IoT) sensors in agriculture is reshaping fertilizer management by enabling precision nutrition for crops. This review explores the use of IoT-based monitoring systems to assess soil nutrient levels, plant health, and environmental conditions in real time. By integrating sensor data with automated fertigation systems, farmers can deliver nutrients precisely when and where they are needed, reducing waste and improving crop yield and quality. The article also discusses the challenges of IoT implementation, including cost, connectivity, and data integration. Overall, IoT-driven precision nutrition offers a pathway toward more efficient, sustainable, and environmentally responsible farming practices.
