Validation of Compost-Derived Biofertilizers from Cattle Manure in Lettuce Cultivation Using Multispectral Imaging and Vegetation Indices. - Rubio, Rosa; Pérez Espinosa, Aurelia; Martínez-Sabater, Encarnación; Orden, Luciano; Velamazán Ros, Mario; de Silva Alves, Lucas; Sánchez-Méndez, Silvia; Andreu-Rodríguez, Francisco Javier; Sáez-Tovar, José Antonio; Moral, Raúl (Applied Sciences (2076-3417), 2026)