Agriculture, Vol. 21 No. 1, 2015.
Original scientific paper
https://doi.org/10.18047/poljo.21.1.3
EFFECT OF NITROGEN FERTILIZATION ON GRAIN YIELD AND QUALITY OF HULLED AND HULLESS SPRING OATS
Miroslav Bukan
; Bc Institute d.d., Dugo Selo, Croatia
Marko Maričević
; Bc Institute d.d., Dugo Selo, Croatia
Ivica Ikić
; Bc Institute d.d., Dugo Selo, Croatia
Rade Mlinar
; Bc Institute d.d., Dugo Selo, Croatia
Ana Lovrić
; Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
Jerko Gunjača
; Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
Hrvoje Šarčević
; Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
Abstract
A field trial was set up in 2014 the growing season at the Bc Institute’s experimental field in Botinec aiming to investigate the effect of four levels of nitrogen fertilization on grain yield, test weight, thousand kernel weight and plant height of eight hulled and two hulless oat genotypes. Significant differences were found out among nitrogen fertilization levels as well as among the eight hulled genotypes for all traits. The interaction genotype × N fertilization was not significant. Significant differences among the hulless oat genotypes were found out for yield, test weight and thousand kernel weight, while the nitrogen fertilization levels differed only for yield. All genotypes reacted positively to the increased levels of nitrogen fertilization. The yield increase of hulled oat genotypes was not significant at nitrogen fertilization being higher than 124 kg/ha N. However, fertilization levels of 133 and 151 kg/ha N resulted in significantly higher yields for the two hulless oat genotypes. At the fertilization levels higher than 124 kg/ha N, differences in grain test weight were nonsignificant for hulled oat genotypes, while for the two hulless genotypes they were nonsignificant among all four nitrogen fertilization treatments.
Keywords
N fertilization; spring oats; genotype; quality; grain yield
Hrčak ID:
139925
URI
Publication date:
8.6.2015.
Visits: 1.497 *