The studies of the meadow-chernozem soil of the Omsk region. showed that biological products are effective when used for spring wheat by seed treatment. When comparing their action. it was noted that a greater effect was obtained from the use of the variants Azotobacterin+Phosphobacterin and Azotobacterin+Phosphobacterin+Humate K. https://fitnessgravesyardes.shop/product-category/warning-label/