Uptake and distribution of soil applied zinc by citrus trees: addressing fertilizer use ffficiency with 68Zn labeling - Hippler, Franz Walter Rieger; Boaretto, Rodrigo Marcelli; Quaggio, José Antônio; Boaretto, Antonio Enedi; Abreu Junior, Cassio Hamilton; Mattos Junior, Dirceu (PLoS One, 2015)