| Soil | Humus, % | Ntot, % | рНKCl | S, mg-equiv/100g of soil |
| Grey forest (В) clay loam, unpolluted | 4.8 | 0.29 | 5.8 | 27.2 |
| Grey forest (В/HMs) clay loam, polluted with heavy metals | 2.9 | 0.16 | 5.8 | 22.8 |