PRODUCTIVITY OF SPRING BARLEY VARIETIES ON THE DIFFERENT BACKGROUNDS OF FERTILIZING IN THE MIDDLE URALS

Abstract

During the years of 2012-2014 two varieties of spring barley ‘Bagrets’ and ‘Belgorodsky 100’ and their response to fertilizing have been studied in the trials of FSBSI ‘Ural research Institute of Agriculture’. The article considers the productivity of barley varieties of various ecologic-geographic origin and their yield structure (a number of productive stems, a number of kernels per head, 1000-kernel weight), and gives economic assessment of the used methods. The study has shown that the variety ‘Belgorodsky 100’ forms a larger yield than ‘Bagrets’ on 0.020.20 t/ha. On average both varieties produced a good yield with the fertilizing of N60P60K60 and it was on 0.75-0.93 t/ha more than without the fertilizing. The variety ‘Bagrets’ formed larger kernels (with 1000-kernel weight of 52.8 g). The fertilizing promoted an increase of the kernel size on 0.7-2.9 g, and a number of productive stems on 15-98 pieces, height of a plant on 4.010.4 sm, a length of head on 0.5-0.9 sm and a number of kernels per head on 0.7-2.2 pieces. In 2014 we obtained high productivity of the studied barley varieties (to 3.57 t/ha). In 2012 barley had better response to fertilizing and the amount of productivity increase was on 0.86-1.28 t/ha higher than the standard variety, but in 2013 and 2014 the increase of productivity was 0.31-0.76 t/ha. In 2013 there were favourable weather conditions (warm and wet) during the barley vegetation and 1000-kernel weight was 58.2 g.