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  1. en.wikipedia.org › wiki › ChernozemChernozem - Wikipedia

    Chernozem (from Russian: чернозём, romanized: chernozyom, IPA: [tɕɪrnɐˈzʲɵm]; "black ground"), [1] [2] also called black soil, regur soil or black cotton soil, is a black-colored soil containing a high percentage of humus [3] (4% to 16%) and high percentages of phosphorus and ammonia compounds. [4] Chernozem is very fertile soil ...

    • Terra preta

      Terra preta. Terra preta ( Portuguese pronunciation: [ˈtɛʁɐ...

    • Black soil

      Black soil. Black soil may refer to: Chernozem, fertile...

  2. The total thickness of black surface horizons ≥25 cm; Organic carbon content in the upper 25-cm of the black horizons of ≥1.2% (or ≥ 0.6% for tropical regions) and ≤20%; CEC in the black surface horizons ≥25 cmol/kg; and; A base saturation in the black surface horizons ≥50%. Most but not all 1st category Black soils:

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  4. Oct 7, 2019 · Terra preta, or “black soil” in Portuguese, is fertile soil cultivated by indigenous peoples of the Amazon basin for agricultural purposes. “Terra preta is a perfect topic to encourage multidisciplinary research,” explained Morgan Schmidt, postdoctoral researcher in the Department of Earth, Atmospheric, and Planetary Sciences.

  5. May 12, 2022 · 05/12/2022. Rome – The Food and Agriculture Organization of the United Nations (FAO) today marked World Soil Day 2022 with the launch of its first global report on black soils, which are at greater risk than ever due to the climate crisis, biodiversity loss and land use change. A whopping 95 percent of the food we eat comes directly or ...

  6. No results found. Black soils are carbon-rich and highly fertile soils known as the world's food basket due to the variability of crops they sustain. For decades, these fertile soils have been widely cultivated and have played a key role in global agricultural production of cereals, tuber crops, oilseed, pastures, and forage systems. In ...

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