Reakcja pszenicy hybrydowej na wysokie dawki azotu i nawożenie dolistne

A close field experiment with winter wheat was conducted during 2016‒2019, at the Experimental Station for Variety Evaluation in Przeclaw. The aim of the study was to determine the effect of increasing doses of nitrogen and foliar fertilization on yield, canopy architectural parameters, quality characteristics and mineral composition of grain of the hybrid cultivar Hybiza. The fertilization with N200 nitrogen dose as compared to N150 significantly increased: leaf area index (LAI), leaf tilt angle (MTA), Soil Plant Analysis Development (SPAD), spike density per area unit, plant lodging, MTZ and grain yield. Foliar feeding as compared to the control object resulted in a significant increase in such parameters as SPAD index, MTZ and grain yield. An increased dose of nitrogen N200 increased the values of quality parameters and the amount of Fe and Cu. Foliar fertilisation, on the other hand, increased the amount of Zn and Fe in grain without affecting the bulk density and accuracy of grain. The yield level as well as quality and mineral composition of grain were modified by weather conditions varying in the years of the research.