ULLAH, Ghazanfar et al. Wheat Response to Application Methods and Levels of Nitrogen Fertilizer: I. Phenology, Growth Indices and Protein Content. Pakistan Journal of Nutrition, Pakistan, v. 12, n. 4, p. 365–370, 2013. DOI: 10.3923/pjn.2013.365.370. Disponível em: https://pjnonline.org/pjn/article/view/1831. Acesso em: 19 aug. 2025.