Продуктивность ячменя ярового в зависимости от элементов технологии выращивания в условиях южной степи Украины

Abstract

The article presents the results of studies about the effectiveness of spring barley crop cultivation with modern retriever preparations in the background of mineral fertilizers carried out in 201 3-2017 on the southern bleak soils in the Ukrainian Steppe. That the options for plant nutrition significantly influenced the growth and development of spring barley varieties. So the plants were distinguished by their maximum height during the cultivation on the background of mineral fertilization and the extracorporeal fertilization of crops during the vegetation period with the Escort – bio. The height of spring barley plants varied significantly and depended on the varietal characteristics. The highest linear height was characterized by the barley stalker variety, and the smallest variety was the Aeneas variety. The applied fertilizers and weather conditions during the years of research significantly influenced the productivity of barley varieties. The lowest crop was formed in 2013, and the highest in 2016. The maximum yield of barley varieties in all years of research was formed for cultivating by the applying a moderate dose of mineral fertilizers and foliar application of crops with Organic D2 and Escort - bio. Thus, on average, over the years of research and in terms of the factor, the grain yield was 3,37- 3,41 t/ha, which exceeded its level by fertilized control at ,71 – 0,75 t/ha or 26.7 – 28.2%, and in the background of making only mineral fertilizers - at 0,4 t/ha or 15.4%.