PARAMETERS OF YIELD AND QUALITY OF SPRING MALTING BARLEY GRAIN

Abstract

During a two-year period, two varieties of spring malting barley, Mile and Marko, were studied, which were created at the Institute of Field and Vegetable Crops in Novi Sad.Grain yield, weight of 1000 grains and hectoliter mass of grains were examined. The experiment was carried out in the vicinity of Kruševac according to the plan of a random block system in four repetitions, and the size of the base parcel was 5m2 .The sowing standard was 400 germinable kernels/m2 . The experiment includes the fertilization factor with growing nitrogen doses N0, N80, N100, N120. At variants with a nitrogen dose, another 90 kgha-1 of Р2O5 and K2O were used. Sowing density and applied nitrogen doses are two extremely important factors in the production technology of spring malting barley. In the interaction with the genotype of the variety and different soil factors as well as climatic factors, it contributes decisively to obtaining high yields of good grain quality.The aim of this research is to examine the influence of increased nitrogen doses in mineral nutrition on fertility parameters and grain quality of spring malting barley. The achieved results of the study show that the use of nitrogen had a positive effect on fertility parameters and grain quality of spring malting barley in all varieties and at both varieties.Using a higher nitrogen dose, a somewhat larger mass of 1000 grains was found in the fertilization variant of 100 kg ha-1N per average for the examined two-year period, while the hectolitre mass was somewhat higher in the case of the fertilizer variant of 80 kg ha-1N in the Mile variety as well as the higher yield of grain in relation to the variety Marko.The different reaction of the tested varieties on the application of mineral fertilizers is the result of their varietal specificity