Neptune, Andre Martin Louis, Julio Nakagawa, Luiz Carlos Scotton, and Euclides A. de Souza. “ Effects of Non-Equidistant Rates of N, P and K on Leaf Concentrations of These Nutrients and on Yield of Corn (Zea Mays L.) ”. Anais da Escola Superior de Agricultura Luiz de Queiroz 39, no. 2 (January 1, 1982): 917–941. Accessed May 18, 2024. https://www.revistas.usp.br/aesalq/article/view/4871.