Boron deficiency precisely identified on growth stage v4 of maize crop using texture image analysis - Luz, Pedro Henrique de Cerqueira; Marin, M. A.; Devechio, F. F. S.; Romualdo, L. M.; Zuñiga, A. M. G.; Oliveira, M. W. S.; Herling, Valdo Rodrigues; Bruno, Odemir Martinez (Communications in Soil Science and Plant Analysis, 2018)