Use of digital images to identify zinc levels in maize - Luz, Pedro Henrique de Cerqueira; Marin, Mário Antônio; Silva, Fernando de Fátima da; Romualdo, Liliane Maria; Herling, Valdo Rodrigues; Pateis, Uanderson Henrique Barbieri; Bruno, Odemir Martinez; Zuñiga, Alvaro Gómes (ASA-CSSA-SSSA International Annual Meetings, 2013)