Assessing in-season crop nitrogen status based on UAV multispectral imaging and AI-driven model optimization. - Yeying Zhou; Syed Tahir Ata-Ul-Karim; Jingru Yin; Marco Canicattì; Lili Tóth; Sheng Wang 020; Yuntao Ma; Caicong Wu; Mathias Neumann Andersen; Davide Cammarano (Comput. Electron. Agric., 2026)