“…The sunflower culture shows national average productivity of 1500 kg ha -1 (AGRIANUA L, 2012). However, if adequately managed, the productivity may increase to 1500 to 2200 kg ha -1 (Dos Santos et al, 2016;Oliveira et al, 2014;Porto et al, 2007). Under irrigation, grain yield is generally in the range of 2200 to 3000 kg ha -1 (Biscaro et al, 2008;Go mes et al, 2010;Guedes Filho et al, 2015;Schwerz et al, 2015), and can reach more than 4000 kg ha -1 in favorable soil and climatic conditions (Go mes et al, 2010;De Aquino et al, 2013), being able to reach 4.000 kg ha -1 in favorable edaphoclimatic conditions (Karam et al, 2007;Anastasi et al, 2010;Go mes et al, 2012).…”