Keywords:  heavy metals, trace elements, sources of pollution, pig wastewater, soil, balance

Мелиорация.– 2024. – №1 (107). – P 65–73

The article presents the results of the study of the impact of long-term irrigation with pig wastewater on soil pollution by heavy metals (Copper, Zinc, Cadmium, Lead) of the breeding and hybrid center «Zadneprovsky» of Orsha district of Vitebsk region. On their basis of studies were conducted on experimental plots in the period 2002–2004 and in 2017; the balance of priority pollutants characteristic of the Republic of Belarus was drawn up. In the process of long-term irrigation with effluents of the pig-breeding complex in the amount of 300 kg/ha (on Nitrogen) of the experimental plot has been observed a decrease in the values of mobile forms of the considered heavy metals in sod-podzolic loamy soil, which confirms the validity of the justification of fertilizer-wetting irrigation regime.