METHOD OF PREPARATION OF COMPLEX FERTILIZER Russian patent published in 2019 - IPC C05F5/00 C05F11/00 C05D3/00 C05D9/02 C05G3/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the agriculture. Method of preparing complex fertilizer involves use of alcohol production wastes – distillery dregs with addition of quicklime, at that 15–20 % of quicklime is added to the spirit after distillery dreg, 20–25 % of clay Alanite, which is saturated for 8–10 hours with 0.2 % boron and 0.1 % iodine with subsequent introduction of organic substances of weeds in amount of 10–15 % and biopreparation Nikfan in concentration 0.2 % within 5–6 % of total volume of mixture.

EFFECT: invention enables to obtain a complex fertilizer which has a number of nutrients, thereby increasing crop productivity.

1 cl, 1 tbl, 2 ex