Fabius Azum – a bio-preparation, inoculant, used in agricultural production to increase crop yields. The preparation contains the active ingredient Azospirillum brasilense Ab-V5 at a concentration of 3 × 108 UFC/mL. It is used for seed inoculation, incorporation into furrows, and surface treatment. Use of this preparation improves plant growth by fixing nitrogen from the air. The preparation is produced by the company Klovo and Green Express, located in Kyiv, Ukraine. Fabius Azum can be used on corn, winter wheat, and soybean crops. For seed inoculation, 100 ml of the preparation is recommended per 20 kg of seeds. When applied to furrows, the rate is 200 ml per hectare, and for surface treatment – 200-300 ml per hectare. This ensures uniform distribution of microorganisms across the entire sowing area. Fabius Azum is an environmentally safe product that enhances soil fertility and reduces dependence on chemical fertilizers. Due to its composition, it is suitable for use in organic farming and is compatible with other agronomic practices.