EN
The study was carried out in 2008–2010 The aim of this research was to determine the influence of chemical protection (herbicides Mustang 306 SE and Attribut 70 WG, fungicide Alert 375 SC and retardant Stabilan 750 SL) on some grain quality characters of two cultivars of spelt wheat (Schwabenkorn and Spelt I.N.Z.) in different conditions of mineral fertilization. It was found that chemical protection level did not significant by influence the protein, starch and gluten content as well as sedimentation index in grains. It indicates the possibility of reducing chemical protection without risk of worsening the technological quality of spelt wheat grain. The content of total protein in grains was higher in the object with a lower level of fertilization. The cultivar Schwabenkorn was characterized by a significantly higher content of protein and starch in grains and Zeleny’s sedimentation index then in the Spelt I.N.Z.