A three-year field experiment carried out on a light soil in the Wrocław region was designed to examine the effect of sprinkling irrigation and nitrogen fertilisation with different rates on the amount and structure of the grain yield of brewing barley cv. Scarlett. It was found that weather conditions had the greatest influence on the yield. The weather-induced yield differences between the years reached even ca 18.6 dt · ha^-1 (55%). The mean yield increase in the study period, due to irrigation, was 3.6 dt · ha^-1 (8.6%). Sprinkling irrigation caused also a rise in the number of spikes per square metre and the weight of grains from a spike. The grain yield increased with increasing nitrogen rate and the difference for the extreme fertiliser rates attained 6.9 dt · ha-1 (16.4%). The rate 93 dt · ha-1 produced the largest number of spikes per square metre, and the rate 68 kg N · ha-1 – the greatest weight of 1000 grains and of grains from a spike.

119-125