In the field experiment, conducted in 2007-2010 in Mochełek (53^o13’N; 17o51’E) near Bydgoszcz on good rye complex, the effect of nitrogen fertilization (40, 80, 120, 160 kg N∙ha^-1) on the yield and grain technological quality of winter wheat cultivars Bogatka, Nutka, Kris, Tonacja was evaluated. The study found that in agricultural techniques of winter wheat on light soil, cultivar and nitrogen fertilization are elements having an independent effect. Under these soil conditions, in this region and in the years of relatively low rainfall totals during the growing season, nitrogen fertilization above 80 kg N∙ha^-1 did not significantly increase the grain yield, but positively affected its technological value. Among the compared winter wheat cultivars, Kris cultivar yielded the best. Grains of this cultivar, however, had the lowest grain technological quality.

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