Chernozem

Chernozem (from Russian:чернозём, tr.chernozyom;IPA: [tɕɪrnɐˈzʲɵm], translated as "black soil, dirt or earth") is a black-coloured soil containing a high percentage of humus (7% to 15%), and high percentages of phosphoric acids, phosphorus and ammonia. Chernozem is very fertile and produces a high agricultural yield.