ABSTRACT.
Plants capable of accumulating heavy metals in large quantities can be used for biological soil purification
and to reduce their accumulation in grain crops. The research results show that the decrease in the intensity of accumulation of
heavy metals in winter wheat grain is due to the optimization of the agroecological state of the soil after growing legumes of
perennial grasses, which contributed to a significant decrease in the content of heavy metals in grain. In particular, the lowest
lead content in winter wheat grains was observed after the precursor of sandy esparcet – 1.59 mg/kg, cadmium after eastern
goat – 0.14 mg/kg, copper and zinc after meadow clover – 3.89 and 21.65 mg/kg, respectively.
KEYWORDS: heavy metals, cereals, grains, wheat.