This project aims to develop a low-cost, accurate, and easy-to-use soil nutrient testing system using screen-printed nano-material–based electrochemical sensors. These nanosensors offer high sensitivity and selectivity for detecting key nutrients like N, P, and K, overcoming the limitations of existing colorimetric devices. Integrated with an IoT platform, the system provides portable, real-time soil nutrient measurements with minimal reagent use, making it highly suitable for Indian farmers.
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