Spectral Variability Analysis of Lupinus mutabilis Sweet Under Nanofertilizer and Chelate Application Through Spectroscopy and Unmanned Aerial Vehicle (UAV) Multispectral Images - Sinde-Gonzalez, Izar; Murgueitio-Herrera, Erika; Falconi, Cesar E; Gil-Docampo, Mariluz; Toulkeridis, Theofilos (Agronomy-Basel, 2025)