RENDÓN, José Raúl; SADEGHIAN, Siavosh. Application of spectral indices to identify nitrogen fertilization needs in coffee. Cenicafe Journal, [S. l.], v. 69, n. 1, p. 7–15, 2018. DOI: 10.38141/10778/69101. Disponível em: https://publicaciones.cenicafe.org/index.php/cenicafe/article/view/3301.. Acesso em: 23 mar. 2026.