EFFICIENCY OF APPLICATION OF LIQUID ORGANO-MINERAL FERTILIZERS UNDER SPRING BARLEY IN THE CONDITIONS OF CLIMATE CHANGE

Abstract

The article presents data on the efficiency of application for spring barley liquid organo-mineral fertilizers (OMF) in the form of complex compounds balanced by basic nutrients and the content of nitrogen and humic acids in them. The positive influence of the fertilizers studied on the formation of the yield and the quality of spring barley grain under conditions of climate change was established. It has been determined that application of fertilizers at a dose of 40 kg/ha under presowing cultivation creates a low-concentration nitrogen background, which performs the function of energy-enrichment of plants at the initial stages of organogenesis, and foliar treatments in adverse weather conditions of the growing season at a dose of 6 kg/ha make it possible to fill the shortage in plants with the necessary element power supply. Thus, on the сhernozem typical, the increase in the grain yield of spring barley is 0,4-0,97 t/ha or (20-41 %) compared to the control, and provide a high protein content within the range of 12,27-12,34 %.