An international team of scientists, including a professor of the Faculty of Soil Science, MSU, has studied burial sites dated back to the Bronze Age at the border between Kalmykia and Stavropol Territory and found traces of domestic barley on the walls of vessels. Local residents did not practice agriculture at that time, so the barley was likely received from people of farming cultures in exchange for other goods. The details of the study were published in Vegetation History and Archaeobotany.