Blum, Julius, Adolpho José Melfi, and Célia Regina Montes. “Mineral Nutrition of Sugarcane Irrigated With Sewage Effluent in an Area With Phosphogypsum Application”. Pesquisa Agropecuaria Brasileira 47, no. 4 (May 23, 2012): 593–602. Accessed November 15, 2025. https://apct.sede.embrapa.br/pab/article/view/12105.