Alves, L. S., Stark, E. M. L. M., Zonta, E., Fernandes, M. S., Santos, A. M. dos e Souza, S. R. de (2017) “<b&gt;Different nitrogen and boron levels influence the grain production and oil content of a sunflower cultivar”, Acta Scientiarum. Agronomy, 39(1), p. 59-66. doi: 10.4025/actasciagron.v39i1.30941.