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 (chĕr′nə-zĕm′, chîr′nə-zyôm′)
A very black topsoil, rich in humus, typical of cool to temperate semiarid regions such as the grasslands of Ukraine and southern Russia.

[Russian chernozëm : chërnyĭ, black + Old Russian zemĭ, earth; see dhghem- in Indo-European roots.]

cher′no·zem′ic adj.


(ˈtʃɜːnəʊˌzɛm) or


(Geological Science) a black soil, rich in humus and carbonates, in cool or temperate semiarid regions, as the grasslands of Russia
[from Russian, contraction of chernaya zemlya black earth]


(ˈtʃɜr nəˌzɛm, ˈtʃɛər-)

a soil common in cool or temperate semiarid climates, black and rich in humus and carbonates.
[1835–45; < Russian <chërn(yĭ) black + zemlyá earth]
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References in periodicals archive ?
belonging to Prunus genus, are also popular in the Central Chernozem Area.
At present, the main soil type of the area is classified as a calcic chernozem (Neubauer et al.
Ukraine's black earth - the chernozem - is an amazingly deep, fertile soil whose prodigiously productive capacity led the country to be christened the bread basket of Europe", begins the article on agriculture in Ukraine.
Campbell CA, Bowren KE, Schnitzer M, Zentner RP, Townley-Smith L (1991) Effect of crop rotations and fertilization on soil biochemical properties in a thick Black Chernozem.
Belova, 1993, "The extinction of some perennial grass vegetation and the degradation of chernozem due to anthropozoogenial factors, in some steppes of Ukrainian USSR", In S Wicherek (Ed) Farmland Eroision: In Temperate Plains and Hills.
Russia has tens of millions of hectares (acres) of chernozem, or black earth, considered a dream soil because of its richness in humus, which is formed by the decomposition of plant matter by micro-organisms.
For example, a Luvisol and Chernozem may each contain a Bm horizon, but the Bm in the Luvisol has different characteristics from those seen in the Bm of a Chernozem.
48 Scientifically speaking, chernozem and podzol are two types of what?
First, the phenomenal fertility of the chernozem soils in Tambov Oblast leads to a very low payback on fertiliser application: calculations show that a farmer can break even on fertiliser costs if 1 kg of nutrient material increases the yield by 7-9 kg per hectare.