Hyperspectral image-based leaf-level spatial and spectral feature mining for phosphorus deficiency symptom differentiation in corn plants at early vegetative stage. - Jinnuo Zhang; Xing Wei; Zhihang Song; Kwame Ampong; Anita Beltrame; Tianzhang Zhao; Chad J. Penn; Jian Jin (Comput. Electron. Agric., 2026)