Total heterotrophic bacteria (THB) of the control and treated groups during the first phase of the experiment ranged from (1.01 ± 0.28) × 106 CFU/g to (13.05 ± 0.07) × 106 CFU/g (Table 5). A significant decline in THB over time was found only in soil dried in sunlight, tilled with probiotics added (treatment 5). During the third phase, a significant decline in THB was observed in both treated and control groups, with an average value on day 15 less than (0.58 ± 0.07) × 106 CFU/g (Table 6).