Impacts of perennial legume-grass mixtures on regulation of soil fertility processes were studied in the Stavropol region, Russia in 2006-09. The mixtures consisted of wheat grass, sainfoin, melilot, alfalfa and bluegrass. Growth and development of roots, above-ground biomass and accumulation of organic compounds in soil were measured during the experiment. The total biomass yield of the 5-component mixture reached 9.62 t/ha at the end of the fourth year. Authors recommend this mixture for phytomelioration. The detailed data on yield dynamics of legume-grass mixtures are presented in 2 tables.
