Estimation of Nitrogen in Rice Crops from UAV-Captured Images. - Julián D. Colorado; Natalia Cera-Bornacelli; Juan S. Caldas; Eliel Petro; Maria C. Rebolledo; David Cuellar; Francisco Carlos Calderon; Iván Fernando Mondragón; Andrés Jaramillo-Botero (Remote. Sens., 2020)