Harger, Nelson, Roberto Fioretto, and Ricardo Ralisch. “Evaluation of the Soybean Nutritional Status for the Methods of Sufficiency Level and DRIS”. Semina: Ciências Agrárias 24, no. 2 (May 10, 2003): 219–224. Accessed March 30, 2025. https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2178.