Original scientific paper

https://doi.org/10.33128/ag.83.1-2.2

Impact of sowing system in the five-year period on maize grain yield

Anamarija Banaj orcid.org/0000-0002-5495-8260 ; Fakultet agrobiotehničkih znanosti Sveučilište Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska
Vjekoslav Tadić orcid.org/0000-0002-2307-9255 ; Fakultet agrobiotehničkih znanosti Sveučilište Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska
Davor Petrović orcid.org/0000-0003-3791-8870 ; Fakultet agrobiotehničkih znanosti Sveučilište Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska
Đuro Banaj orcid.org/0000-0001-6011-9191 ; Fakultet agrobiotehničkih znanosti Sveučilište Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska
Bojan Stipešević ; Fakultet agrobiotehničkih znanosti Sveučilište Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska

Abstract

The paper presents the results of the influence of standard and sowing in double rows, ie twin row technology on corn grain yield in the Republic of Croatia. The research was conducted from 2016. to 2020. at two experimental field Jakšić (45°21'56,12"N and 17°47'0,08"E) and experimental field Lužani (45°09'07,8"N and 17°42'41,6 "E). The research was carried out by sowing hybrids KWS 2370 (FAO 290) and KWS Smaragd (FAO 350) in the standard way with a row spacing of 70 cm, and in double rows with a spacing of 22 cm. During the experiment by sowing in twin rows, a significantly higher grain yield of kg ha-1 was achieved, but with slightly higher grain moisture at harvest time. The highest yield at the experimental field Jakšić in standard sowing was recorded in 2016 of 12 180 kg ha-1 in hybrid KWS 2370 from FAO group 290 while in twin row sowing the average grain yield was higher by 10.76 % compared to standard sowing. The lowest recorded grain yield kg ha-1 at the same experimental field was achieved in the 2017 vegetation year. In the same year, in the twin row sowing, the grain yield was 15.51 % higher than in standard sowing. Also, in the vegetation year 2017 at the Lužani experimental field, the lowest average grain yield in the harvest was recorded, while sowing in twin rows achieved a yield increase of 12.03 % compared to standard sowing. When sowing KWS Smaragd hybrid, the lowest grain yield was recorded in 2016 with 10 450 kg ha-1, while the yield in twin rows was 11 693 kg ha-1 with the largest difference between the sowing systems of 11,89 % in the experimental field Lužani. Sowing in twin rows at both experimental sites resulted in statistically significant differences for the main study properties in all five vegetation years. Statistically significant differences were observed for the property of grain mass per cob as well as for the moisture content in the grain. A slightly lower value of grain moisture in all five years of research was recorded in standard sowing. The differences in the realized set of plants at the experimental field sites at the time of the five-year study were not statistically significant.

Keywords

maize; standard sowing; twin row sowing; twin row sowing machine; grain yield

Hrčak ID:

272370

URI

https://hrcak.srce.hr/272370

Publication date:

11.2.2022.

Article data in other languages: croatian

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