Open AccessSowing Systems as a Factor of Grain Yield in Sunflower Production
Author(s) -
Anamarija Banaj,
Đuro Banaj,
Davor Petrović,
Bojan Stipešević,
Vjekoslav Tadić
Publication year - 2021
Publication title -
poljoprivreda
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.265
H-Index - 11
eISSN - 1848-8080
pISSN - 1330-7142
DOI - 10.18047/poljo.27.2.11
Subject(s) - sowing , mathematics , sunflower , agronomy , loam , yield (engineering) , biology , soil water , materials science , ecology , metallurgy
The paper presents the results of a triennial study of the sowing system influence on the yied, grain weight per head, plant set per ha and of the grain moisture of a medium-early sunflower hybrid . Standard sowing was performed with the PSK OLT sowing machine at a row spacing amounting to 70 cm, while a twin row sowing was performed with the MaterMacc Twin Row-2 sowing machine at a row spacing of 22*48 cm. Both sowing machines were adjusted according to the ISO standard 7256/1 and 7256/2, with a high QFI index (PSK OLT: 96.32 %; MaterMacc Twin Row-2: 93.93 %). The research was conducted at the Gorjani Experimental Field on psudogley bearing the textured markings of a silty loam, with a weak acid reaction and a small amount of humus. An analysis of variance determined a statistical significance of the sowing system on the grain yield and the grain mass per sunflower head. Sowing in twin rows achieved the higher yields for all three research years : 19.59% in 2017, 19.11% in 2018, and 18.45% in 2019. Plant density was not statistically significantly affected by the sowing systems and vegetation year, but the grain moisture was statistically significantly different between the analyzed research years .