CONTENT OF MOBILE FORMS OF HEAVY METALS IN AGRICOILS OF THE SOUTH OF THE PRIMORSKY REGION DURING THE APPLICATION OF BIOCHAR

Abstract

The content of mobile forms of heavy metals in agricultural soils in the south of Primorsky region with the introduction of biochar in doses of 1 kg/m2 and 3 kg/m2 was studied. Where are no excess of maximum permissible concentration in agricultural soils. Biochar in doses of 1 and 3 kg/m2 is able to reduce the content of heavy metals in some elements (Cd, Zn, Cr, Ni, Cu, Fe, Mn).