Uticaj pokrovnih useva uz primenu biofertilizatora na prinos zrna kukuruza kokičara

Abstract

Cilj rada je ispitivanje uticaja pokrovnih useva, sa i bez primene biofertilizatora (BF) na prinos zrna kukuruza kokičara (hibrid ZPSC 611k FAO 600). Ogled je izveden u Institutu za kukuruz „Zemun Polje“ tokom 2014/2015. godine. Pokrovne useve (PU) su činile dve leguminoze: obična grahorica i ozimi krmni grašak, dve neleguminozne vrste: ozimi ovas i ozimi krmni kelj. Dve varijante sa smešama su obična grahorica + ozimi ovas i ozimi krmni grašak + ozimi ovas i dve kontrole (kontrola I - slama i kontrola II - golo zemljište). PU su sejani u jesen, zaoravani krajem aprila, nakon čega je polovina parcele tretirana BF, dok je setva kukuruza kokičara obavljena polovinom maja. Najveći prinos zrna je ostvaren na varijantama: krmni grašak + ozimi ovas (5,34 t ha-1) i krmni kelj (4,89 t ha- 1) sa BF, dok je ozimi ovas ispoljio najmanji uticaj na prinos zrna kokičara.

The aim of the paper is to examine the influence of cover crops, with and without the application of biofertilizer (BF) on the grain yield of popcorn (hybrid ZPSC 611k FAO 600). The experiment was carried out at the “Zemun Polje” Maize Research Institute during 2014/2015. The cover crops (CC) consisted of 2 legumes: common vetch and field pea, 2 non- leguminous species: winter oats and fodder kale. The two variants with mixtures are common vetch + winter oats and field pea + winter oats and two controls I control (straw) and II control (bare soil). CC was sown in autumn, plowed in late April, after which half of the plot was treated with BF and popcorn was sown in the middle of May. The highest grain yield was achieved on variants with field pea + winter oats (5.34 t ha-1) and fodder kale (4.89 t ha-1) with BF, while winter oats had the least impact on the grain yield of popcorn.