TY JOUR TI Content of gross forms of zinc, lead and cadmium in sod-podzolic sandy loam soils of agricultural lands KW geochemical barrier KW sod-podzolic sandy loam soil KW soil horizon KW heavy metals KW background concentrations JO Agrarian Bulletin of the AU Pavlov, A.. PY 2024 IS 24 PB Ural State Agrarian University