HEAVY METALS IN BLACK-EARTH SOIL AND WINTER WHEAT

Abstract

In the case of prolonged absence of fertilizer application (over 45 years), the gross content and content of mobile compounds of arsenic, cadmium, zinc, cuprum, cobalt, chromium and plumbum in chernozem do not exceed the MPC. A slight excess was found for the gross content of vanadium compounds. Winter wheat grains grown on podzol ash without the use of fertilizers are safe for humans with zinc, cuprum, cobalt and chromium compounds. It is worrying that the maximum concentration of arsenic and plumbum compounds is exceeded. Further studies are needed to determine the causes of this phenomenon. The low level of winter wheat provision in the mating phase of the zinc and copper compounds gives reason to recommend them as micro fertilizers.