Sowing Systems as a Factor of Grain Yield in Sunflower Production

The paper presents the results of a triennial study sowing system influence on yied, grain weight per head, plant set ha and moisture medium-early sunflower hybrid . Standard was performed with PSK OLT machine at row spacing amounting to 70 cm, while twin MaterMacc Twin Row-2 22*48 cm. Both machines were adjusted according ISO standard 7256/1 7256/2, high QFI index (PSK OLT: 96.32 %; Row-2: 93.93 %). research conducted Gorjani Experimental Field psudogley bearing textured markings silty loam, weak acid reaction small amount humus. An analysis variance determined statistical significance yield mass head. Sowing in rows achieved higher yields for all three years : 19.59% 2017, 19.11% 2018, 18.45% 2019. Plant density not statistically significantly affected by systems vegetation year, but different between analyzed