Three-year field experiments carried out on a light soil in the Wrocław region provided the basis for investigating the effect of sprinkling irrigation and nitrogen fertilisation with varying rates on the protein and mineral component contents of the grain of brewing barley cv. Scarlett. The two factors caused significant differences in the protein yield and nitrogen content of grain but had no influence on the levels of other mineral components, such as phosphorus, potassium, calcium, magnesium and sodium. The protein yield and the nitrogen content were significantly lower in irrigated treatments than in non-irrigated ones, whereas rising the nitrogen rate increased both.

69-76