França, A.; Haag, H.; Dechen, A. Mineral Nutrition of Tropical Forage Grasses IV: Micronutrient Deficiencies in Milet Plants . An. Esc. Super. Agr. Luiz de Queiroz 1987, 44 (1), 389-399. https://doi.org/10.1590/S0071-12761987000100020.