Rambo, Lisandro, Paulo Regis Ferreira da Silva, Mércio Luiz Strieder, Adriano Alves da Silva, Luís Sangoi, and Vladirene Macedo Vieira. “Nitrogen Nutrition Index and Corn Yield at Different Management and Nitrogen Fertilization Levels”. Pesquisa Agropecuaria Brasileira 46, no. 4 (June 22, 2011): 390–397. Accessed July 7, 2026. https://apct.sede.embrapa.br/pab/article/view/9649.