1. A Simplified Optical Sensor-Based Approach for Variable Rate Nitrogen Recommendation Using Vegetation Indices and Yield Potential

Variable rate nitrogen (VRN) management using active optical sensors has been widely studied as a strategy to improve nitrogen use efficiency and reduce environmental impacts. Most current methodologies are based on complex multi-step models that estimate in-season yield from vegetation indices, crop stage and multiple equations, which often results in unrealistic yield predictions and limits adoption by farmers and consultants. This study presents a simplified and robust approach for VRN... F. Povh, L.M. Gimenez, L.S. Flugel