Prado, Renato de Mello, and Renata Moreira Leal. 2007. “NUTRITIONAL DISORDERS BY DEFICIENCY IN SUNFLOWER Var. CATISSOL-01”. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics] 36 (3): 187-93. https://doi.org/10.5216/pat.v36i3.2046.