I’m the farm’s GIS person and last week I built a 3-rate nitrogen script in QGIS (0/30/60 lb N) from Sentinel-2 NDVI quantiles for an 85-acre corn field, but the zones line up almost exactly with our 2022 EC map. How are you separating plant stress from soil texture — normalizing by growth stage, switching to GNDVI/red-edge, or timing imagery closer to VT?