hrvatski

Urod i kvaliteta zrna hibrida kukuruza u različitim tretmanima navodnjavanja i gnojidbe dušikom

U radu su prikazani rezultati istraživanja provedenog na pokušalištu Poljoprivrednoga instituta Osijek tijekom 2015. godine. Istraživan je utjecaj različitih tretmana navodnjavanja (a1 = kontrola ; a2 = 60 – 100% PVK i a3 = 80 – 100% PVK), gnojidbe dušikom (b1 = kontrola ; b2 = 100 kg N ha-1 ; b3 = 200 kg N ha-1) te hibrida (c1 = OSSK596 ; c2 = OSSK617 ; c3 = OSSK665 ; c4 = OSSK552) na urod (t ha-1) i kvalitetu zrna kukuruza (apsolutnu i hektolitarsku masu zrna te sadržaj vode u zrnu). Najviši urod (p<0, 01) zrna ostvaren je na a2 tretmanu (11, 4 t ha-1). Gnojidba dušikom povećala je urod i apsolutnu masu zrna. Najviši urod i apsolutna masa (p<0, 01) zabilježeni su kod hibrida OSSK617.

kukuruz ; navodnjavanje ; gnojidba dušikom ; urod ; kvaliteta

In order to evaluate different irrigation (a1 = control group ; a2 = 60 – 100% field capacity and a3 = 80 – 100% FC), nitrogen fertilizer (b1 = control group ; b2 = 100 kg N ha-1 ; b3 = 200 kg N ha-1) and maize hybrids (c1 = OSSK596 ; c2 = OSSK617 ; c3 = OSSK665 ; c4 = OSSK552) on yield and some quality characteristics, field experiment carried out as split split-plot desing with 3 replications on trial field of Agricultural institiute Osijek. The highest yield (p<0.01) was obtained on a2 irrigated plots (11.4 t ha-1). Nitrogen fertilizer increased (p<0.01) yield of maize grain as well as 1000 grain weight. Hybrid OSSK617 had significantly higher yield and 1000 grain weight.