USE OF ALCOHOL EXTRACT OF BIRCH FUNGUS CHAGA AS A GROWTH STIMULATOR FOR TOMATOES Russian patent published in 2023 - IPC A01N65/00 

FIELD: agriculture.

SUBSTANCE: water-alcohol extract with a concentration of 75% dry residue of the birch fungus FUNGUS BETULINUS as a growth stimulator for tomatoes at a concentration of 10-50 g/l with a consumption rate of the working solution of 300 l/ha. Obtaining a water-alcohol extract is carried out by extracting the crushed chaga fungus with 75% ethyl alcohol at a ratio of 1:5 for 5 hours, followed by draining the extract every 20-30 minutes and combining the obtained extracts, evaporating the combined extracts to half of their original volume, adding a double amount by volume of 75% ethyl alcohol and mixing, keeping the resulting solution for 5-6 days at a temperature of 8-10°C, draining the liquid from the settled precipitate, filtering it, distilling off the alcohol from the resulting filtrate, adding an equal volume of a 2% aqueous suspension of talc to the resulting solution, mixing, centrifuging, distilling off the solvent in a vacuum, adding water in an amount that ensures obtaining a water-alcohol extract with a concentration of 75% dry residue.

EFFECT: increasing the yield of tomatoes with natural biologically active substances obtained from natural raw materials.

1 cl, 1 tbl