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Chernozem (/ ˈ tʃ ɜːr n ə z ɛ m / CHUR-nə-zem), [a] 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 and can produce high agricultural yields with its high ...
This type of soil is black in colour. These soils are also called as regur soils. In the north-western found Deccan Plateau. [5] The soil is suitable for growing cottons, due to which it is also known as black cotton soil. It is believed that the climatic conditions along with the parent rock material are the important factors for the formation ...
Indigenous people added low temperature charcoal to poor soils. Up to 9% black carbon has been measured in some terra preta (against 0.5% in surrounding soils). [37] Other measurements found carbon levels 70 times greater than in surrounding ferralsols, [7] with approximate average values of 50 Mg/ha/m. [38]
The Carnatic region shown on an 1897 map of India. The Carnatic region is the peninsular South Indian region between the Eastern Ghats and the Bay of Bengal, in the erstwhile Madras Presidency and in the modern Indian states of Tamil Nadu and southern coastal Andhra Pradesh.
The Black Dirt Region takes its name from the dark, extremely fertile sapric soil left over from an ancient glacial lake bottom augmented by decades of past flooding of the Wallkill River. The 26,000 acres (10,400 ha) of muck left over is the largest concentration of such soil in the United States outside the Florida Everglades. [2]
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This is a list of U.S. state soils. A state soil is a soil that has special significance to a particular state. Each state in the United States has selected a state soil, twenty of which have been legislatively established. These official state soils share the same level of distinction as official state flowers and birds.
The claim: John Hanson was the first Black president of the United States In the past few years, multiple social media posts have declared John Hanson, not Barack Obama, as the first Black ...