Malavolta, E. et al. 1981. Studies on the mineral nutrition of the rice plant: XIII. effects of the deficiencies of micronutrients on the varieties IAC-25 and IAC-47 . Anais da Escola Superior de Agricultura Luiz de Queiroz. 38, 2 (Jan. 1981), 669–686. DOI:https://doi.org/10.1590/S0071-12761981000200012.