Abstract
In the conditions of the Moscow region in 2020-2021. conducted research aimed at identifying the effectiveness of pre-sowing treatment of spring barley seeds with a growth regulator based on the biomass of living microorganisms, as well as establishing the optimal consumption rate of the drug and the effect of using a growth biostimulator on the crop structure, yield and grain quality of spring barley. The length of the spike was significantly longer in the experimental variants, exceeding the control indicator by 30.3 - 31.9%, the weight of 1000 grains, depending on the dose of the drug, was higher than the control by 2.6% - 4.1%. A significant increase in crop yield was obtained in the variant using Restart Zh at a dose of 0.2 l/t + 0.5 l/ha, amounting to 1.7 c/ha. The protein content in the experiment varied from 11.9% to 12.8%. Keywords: BIOSTIMULANTS, SOWING QUALITIES, SPRING BARLEY, YIELD, CROP STRUCTURE
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