The effect of maize rotation to nitrogen outtake by grain yield

Gajenje kukuruza u plodoredu ima brojne prednosti u odnosu na monokulturu. U Srbiji se kukuruz uglavnom gaji u dvopolju s pšenicom. U ogledu je ispitivan uticaj gajenja kukuruza u plodoredu sa pšenicom, odnosno stočnim graškom, u odnosu na monokulturu kukuruza, na prinos zrna i iznošenje azota s prinosom u toku četiri godine. Rezultati ukazuju da se plodored pozitivno odražava kako na povećanje prinosa, tako i na iznošenje azota sa prinosom, odnosno da pozitivno utiče na povećanje kvaliteta zrna kukuruza i to posebno smena kukuruza sa stočnim graškom. U sezonama sa umerenom i povećanom količinom padavina, veće doze unetog mineralnog đubriva su uticale na povećanje prinosa i iznošenje azota, dok su se u sušnim godinama i niže doze đubriva pozitivno odrazile na povećanje prinosa i iznošenje azota.Maize rotation with other crops has various advantages in regard to monoculture. In Serbia, maize is mainly growing in rotation with wheat. The influence of maize rotation with wheat, i.e. field pea in comparision to monoculture on grain yield and nitrogen outtake was examined during four years. Results show that rotation, mainly with field pea, was positively reflected on grain yield increase, as well as nitrogen outtake by yield, increasing grain quality. In seasons with moderate to increased precipitation amount, increased doses of mineral fertilizer increased grain yield and nitrogen outtake, while in drier years, even lower fertilizer doses positively affected, i.e. increased grain yield and nitrogen outtake