Silva, Paulo Regis Ferreira da, Mauro Antônio Rizzardi, Michelangelo Müzell Trezzi, and Milton luiz de Almeida. “Plant Density and Arrangement in Sunflower”. Pesquisa Agropecuaria Brasileira 30, no. 6 (June 1, 1995): 797–810. Accessed March 26, 2026. https://apct.sede.embrapa.br/pab/article/view/4364.