Effect of micro fertilizers on the yield of spring barley in arid conditions of the Volgograd region

Abstract

Due to the changing climatic conditions in the Southern Federal District over the past 30 years, the yield of spring barley has fallen sharply due to the sharp hot and extreme temperatures. During 2020-22, on the basis of early studies and a summary of meteorological forecast data in the Volgograd region, an experiment was laid at the Federal Scientific Center of Agroecology of the Russian Academy of Sciences in Kamyshinsky district to test spring barley varieties: Ratnik, Generous, Format and Azimuth. These varieties were selected as the most stress and drought-resistant in their breeding characteristics. The main goal was to obtain promising processing of modern varieties of spring barley for practical use in production in arid climatic conditions, as well as mathematical processing of the data obtained for the Southern Federal District of the Russian Federation. The location and laying of the experimental plot were selected so that the characteristics of the varieties corresponded to climatic indicators, and field records of the yield structure were conducted according to the methodology of B. A. Dospekhov and the state variety testing. Based on the obtained correlation parameters, a check was carried out through the degree of freedom to take into account the calculations for the adequacy of the events under consideration. Based on the processed data for 2020-22, it can be concluded that intensive processing with micro fertilizers on a leaf + ammonium nitrate 30 kg/ha+grain biostim positively affect the quality characteristics of spring barley varieties, however, everything depends on the intended purpose of the output of spring barley: for feed purposes or 0 brewing.