An experiment was carried out in Serranópolis, State of Goiás, Brazil, aiming to evaluate herbicides efficiency in weeds control and selectivity of the same ones for soybean crop (Glycine max (L.) Merril). The following treatments were utilized: A) 100 g/ha of imazethapyr + surfactante at 0,25% v/v; B) treatment A and 15 days after 230 g/ha of sethoxydim + mineral oil at 0,25% v/v; C) 230 g/ha of sethoxydim + mineral oil at 0,25% v/v; D) 480 + 200 + 230 g/ha of bentazon + fomesafen + sethoxydim + mineral oil at 0,25% v/v; E) 150 g/ha of imazaquim (pre-emergent) and 230 g/ha of sethoxydim + mineral oil at 0,25% v/v; F) 250 g/ha of fomesafen + 187 g/ha of fluazifop-p-butil + surfactant at 0,2% v/v; G) 120 g/ha of imazethapyr + surfactant at 0,25% v/v; H) control with hoeing; I) control without hoeing. The experimental design was randomized blocks with four replications. Capim-custódio (Pennisetum setosum (Swartz) L. Rich.) was efficiently controlled by all the chemical treatments where as Falsa-serralha (Emilia sonchifolia DC.) only by the treatment D. Capim-carrapicho(Cenchrus echinatus L.) by G, D, F. Joá-de-capote(Nicandra physaloides (L.) Pers.) by D, F and G. Initial injuries were found in soybean plants in the treatments D, E and. F. Neither height of plants and insertion of the first pod nor grain yield was significantly influenced by the herbicides.
herbicides; weeds; injuries