Uticaj različitih organskih đubriva na sadržaj ulja i oleinske kiseline kod konzumnog sunokreta | The effect of different organic fertilizers on oil content and oleic acid in confectionery sunflower

In Serbia, high protein confectionery sunflower hybrids are produced on a smaller scale both in conventional and organic production systems, with constant increase of area under organic production. Large seeds are used in a number of natural health products, as well as for direct consumption, while smaller seed fractions are used in the production of cold-pressed sunflower seed oil. Analysed the effect of organic fertilizer Guanito (T1), 0.5 t ha-1, was performed at the stage BBCH 01, while treatments with Trainer (T2), 3 l ha-1 and Natur Plasma (T3), 5 l ha-1, were carried out at the stage BBCH 36. on seed oleic acid and oil content of NS confectionary sunflower hybrids and compare them with untreated control (C) in organic production and with mixed NPK fertilizer (50:50:50) treatment as control (K) in conventional production. All organic fertilizers hadnot positive effect on oleic acid and oil content compared to control. Organic fertilizers did not affect the increase in oleic acid and oil content compared to the control. The hybrids differed statistically significantly of seed oleic acid and oil content. No interaction was observed between treatment and oleic acid and oil content, nor any statistically significant interaction between treatment and hybrid. NS confectionery hybrids can be successfully grown in conventional and organic production conditions, which is confirmed by the research results, there were no statistically significant differences between oleic acid and oil contentin in the control in organic and conventional growing conditions.