Rosolem, Ciro A., Marco A. Bessa, Pedro G. do Amaral, and Hélio F. M. Pereira. “Soil Manganese, Its Determination, and Manganese Toxicity in Soybeans”. Pesquisa Agropecuaria Brasileira 27, no. 2 (February 1, 1992): 277–285. Accessed June 1, 2026. https://apct.sede.embrapa.br/pab/article/view/3648.