*2.3. Experiment Design*

The object of the study was the Japanese millet, *Echinochloa frumentacea* Link.

The soils of sampling points for the model experiment were placed in plastic containers with drainage that did not have a drain for water. Sowing of seeds and observation of plants was carried out in laboratory conditions at a temperature of 21–23 ◦C using natural light. Watering was carried out with distilled water as the topsoil dried up. The seed germination was determined on the 7th day.
