Uman NUH | today: 09/06/2020

The dependence of grain size of brewing spring barley on the influence of mineral nutrition

Author(s) , , ,
Category The Agronomy
year 2020 issue Випуск 96 Частина 1
pages 72-84 index UDK 633.16«321»: 004.12: 631.81
DOI 10.31395/2415-8240-2020-96-1-72-84 (Link)
Abstract The article is devoted to the dependence of the quality of spring barley on the grain size parameters on the influence of foliar nutrition of plants during vegetation with the Wuxal microfertilizer on different mineral nutrition backgrounds. Based on the experimental data obtained in accordance with the normalized indicators of Germany, when grown on the background of mineral nutrition N30P45K45 spring barley can be classified as «selected», the grain size averaged 94,8–95,5 % over three years; on the background of mineral nutrition N60P90K90 barley was close to the selected – 94,3–94,6 %. Effect of the influence of foliar plant nutrition of barley with microfertilizers «Wuxal» on brewing quality in terms of size was to increase in the composition of large grain of the fraction of 2,8 mm and decrease of the fraction of 2,5 mm and it depended on the technological scheme of application. The variant A7 was the best when growing spring barley on the background of mineral nutrition N30P45K45, with threefold foliar fertilization of plants with microfertilizers «Wuxal P Max» during the tillering phase (1,5 l/ha), «Wuxal Grain» during the phase of stem elongation (1,5 l/ha) and «Wuxal Grain» at the beginning of flowering phase (1,5 l/ha), which provides the largest grain fraction of 2,8 mm, with an average of 84,9 % over three years, while at the control variant – 81,8 %. The variant A7 was also the best when growing spring barley on the background of mineral nutrition N60P90K90 – threefold foliar fertilization of plants with «Wuxal Р Max» during the tillering phase (2,0 l/ha), «Wuxal Grain» during the phase of stem elongation (2,0 l/ha) and «Wuxal Grain» at the beginning of flowering phase (2,0 l/ha), which provides the largest part of grain fraction 2,8 mm, where the average for the three years was 81,8 %, and at the control variant is only 79,7 %.
Key words spring barley, mineral fertilizers, micro fertilizers, foliar plant nutrition, grain size.
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