Analysis of maize production from 2016 to 2018 at family farm Marko Lešić

Cilj završnog rada bio je analizirati proizvodnju kukuruza na OPG-u Marko Lešić u posljednjem trogodišnjem razdoblju (2016.-2018.), odnosno prikazati provedene agrotehničke zahvate, vremenske prilike i ostvarene prinose. OPG Marko Lešić je osnovan 2016. u Bošnjacima u Vukovarsko-srijemskoj županiji i raspolaže s 35 ha oranica na kojima uzgaja najzastupljenije ratarske kulture. U sve tri analizirane godine prosječne temperature zraka su bile iznad višegodišnjeg prosjeka za 1,1 °C (2016.), 1,7 °C (2017.) i čak 2,8 °C (2018.). U usporedbi s višegodišnjim prosjekom 2016. i 2018. je palo 2 % i 24 % više oborina, a 2017. 18 % manje oborina. Prosječni prinos u sve tri promatrane godine je iznosio visokih 10,92 t/ha. Najprinosnija godina je bila 2018. s ostvarenim prosječnim prinosom od 14,5 t/ha, a najniži prosječni prinos je ostvaren 2017. godine s vrlo niskih 6,5 t/ha. U promatranom trogodišnjem razdoblju pokazalo se da kukuruz ostvaruje dosta niže prinose kada je nedovoljna količina oborina i iznadprosječna temperatura zraka što je i za očekivati. Isto tako se pokazalo da je svaka proizvodna godina specifična sama po sebi, a uz istu gnojidbu, zaštitu i sklop najveći utjecaj na prinose kukuruza imali su vremenski uvjeti.The aim of the final work was to analyse the production of maize on family farm Marko Lešić in the last three years period (2016-2018) and to show proven agrotechnical operations, weather conditions and yields. Family farm Marko Lešić was founded 2016 in Bošnjaci in Vukovar-Srijem County and has 35 hectares where they cultivate the most abundant field crops. In all three analysed years the average air temperature was higher compared to the long term mean for 1.1 °C (2016), 1.7 ° C (2017) and even 2.8 °C (2018). Compared to the long term mean 2016 and 2018 achieved 2% and 24% more precipitation, while 2017 was 18% less precipitation. Average yield in all three observed years was 10.92 t ha-1. The most prominent year was 2018 with an average yield of 14.5 t ha-1, while the lowest average yield achieved in 2017 with only 6.5 t ha-1. In the observed three years period of maize yielded a fairly low yield when insufficient precipitation and above the temperature were higher then expected. It also appeared that each production year was specific in itself, with the same fertilization, protection and the most important influence on maize yields had time conditions