Control of the Influence of Minerals, Nitrogen, Phosphorus and Potassium during Cultivation of Some Varieties of Winter Barley (Hordeum Vulgare L.) for beer production

The object of this study is the control of the influence of minerals, nitrogen, phosphorus and potassium during cultivation of some varieties of winter barley (hordeum vulgare L.) for beer production in the climatic conditions of Kosovo. During cultivation and production a total of six barley cultivars have been analyzed such as Bingo, Zlatko, Vannesa, Esterel, Barun while Rex was used as comparative (standard). The analysis of the breeding and production are conducted in two agro climatic regions of Kosovo (in Arbnesh Research farm of the agricultural institute of Kosovo, Peja – Dukagjin Field, and Pestova – Kosovo Fields). Experiments were carried out by the method of randomized blocks in repetitions. Area of each experiment was 10 m2. Soil analyses for minerals, nitrogen, phosphorus and potassium were conducted on two fields. In order to achieve a proper control the following factors were measured: the yield (kg/ha), the weight (1000 seeds in grams), the hectoliters weight (kg), the protein content (%), the humidity (%) and the starch. The obtained results showed that there were significant statistical differences between various levels for all investigated areas compared with the standard (Rex) and between various localities. These data served for a proper control of the quality of the beer production.