Selenium in deponing media of the nonchernozem zone of the European part of Russia and an agrochemical method for the correction of selenium deficiency

The extent of selenium accumulation in deponing media (soils, water, cultivated and natural plants) was considered. The studies involved territories of the biogeochemical subregion of the nonchernozem zone of the European part of Russia, where a deficiency of some essential microelements was observed. The possibility of enriching vegetables and greens with selenium by applying selenium-containing fertilizer was demonstrated. An increase in the selenium content by a factor of 2-16 was achieved in the edible parts of vegetables, depending on the plant species, the amount of selenium, soil type, and the agrochemical conditions of plant cultivation.