The Crop Nutritional Monitoring (CNM®) by AGQ Labs, provides continuous information to assess plant response to fertilisation plans and monitor physiological control. Its methodology integrates continuous in situ analysis with advanced sensor technology to track plant response to fertilisation. By comparing irrigation water with fertigation solutions, the tool monitors the dynamic movement of ions around the root profile and evaluates the chemical composition of different plant organs throughout the growth cycle. This systematic approach enables precise detection of nutrient absorption and assimilation patterns, ensuring tailored fertilisation strategies for each phase of crop development. The comprehensive data-driven methodology minimises excess fertilisation and environmental impact while enhancing crop yield and quality.