INFLUENCE OF GROWING ELEMENTS ON SPRING BARLEY PRODUCTIVITY IN THE NORTHERN STEPPE OF UKRAINE

This article considers the technological scheme of growing spring barley of different varieties (variety Hermes and variety Avatar) with the use of bacterial preparation Biocomplex-BTU-r as a seed treatment and foliar feeding against the background of complex mineral fertilizer N45P45K30 with the use of siderate (white mustard) and stubble destructor EcoStern (2 l/ha) in a tank mixture with 50 kg/ha of urea. In scientific research the influence of different combination of variants on biometric indicators of crop plants, yield and its structure was studied. The maximum above-mentioned indicators were exactly when using seed treatment with bacterial preparation, its use in the treatment of plants during vegetation, application of complex mineral fertilizers, sowing of a sideral crop with its treatment with stubble destructor with urea. In this case, the yield of varieties Hermes and Avatar were 4.84 and 5.13 tons / ha respectively