Russian Federation is being the top country by barley in the world. As of 2014, barley in Russian Federation was 9 million ha that accounts for 18.22 % of the world's barley. The top 5 countries (others are Australia, Ukraine, Spain, and Turkey) account for 43.16 % of it. The world's total barley was estimated at 49.4 million ha in 2014.
Hordeum spp.: two-row barley (H. disticum) six-row barley (H. hexasticum) four-row barley (H. vulgare). Tolerates poorer soils and lower temperatures better than does wheat. Varieties include with husk and without (naked). Used as a livestock feed, for malt and for preparing foods. The roasted grains are a coffee substitute.