Sachs LG, Portugal AP, Ferreira SHP, Ida EI, Sachs PJD, Sachs JPD. Influence of NPK on yield and chemical components of sunflower. Semina: Ciênc. Agrár. [Internet]. 2006 Jul. 30 [cited 2026 Mar. 11];27(4):533-46. Available from: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2493