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  2. Red soil - Wikipedia

    en.wikipedia.org/wiki/Red_soil

    Red soil is a type of soil that typically develops in warm, temperate, and humid climates and comprises approximately 13% of Earth's soils. [1] It contains thin organic and organic-mineral layers of highly leached soil resting on a red layer of alluvium .

  3. Ultisol - Wikipedia

    en.wikipedia.org/wiki/Ultisol

    The use of soil tests, coupled with the corresponding provisions, can alleviate issues of nutrition and irrigation that can result from non porous Ultisol. [4] Soil tests help indicate the pH, and red clay soil typically has a low pH. [5] The addition of lime is used to help to increase the pH in soil and can help increase the pH in Ultisol as ...

  4. Soil fertility - Wikipedia

    en.wikipedia.org/wiki/Soil_fertility

    Soil scientists use the capital letters O, A, B, C, and E to identify the master horizons, and lowercase letters for distinctions of these horizons. Most soils have three major horizons—the surface horizon (A), the subsoil (B), and the substratum (C). Some soils have an organic horizon (O) on the surface, but this horizon can also be buried.

  5. 1938 USDA soil taxonomy - Wikipedia

    en.wikipedia.org/wiki/1938_USDA_soil_taxonomy

    Rendzina soils are thin soils with limited available water capacity. Terra rossa soils are deep red soils associated with higher rainfall than rendzina. Hydromorphic soils form in wetland conditions. There are two sub-types: Gley soils - These occur when the pore spaces between the grains become saturated with water and contain no air. This ...

  6. Terra rossa (soil) - Wikipedia

    en.wikipedia.org/wiki/Terra_rossa_(soil)

    Malvasia vines in terra rossa soil. Terra rossa (Italian for 'red soil') is a well-drained, reddish, clayey to silty soil with neutral pH conditions and is typical of the Mediterranean region. The reddish color of terra rossa is the result of the preferential formation of hematite over goethite.

  7. List of U.S. state soils - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._state_soils

    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.

  8. Whitney Houston's Former Bodyguard Says He Was Once ... - AOL

    www.aol.com/lifestyle/whitney-houston-former...

    The Welsh-born Roberts, who served as Houston’s bodyguard from 1988 to 1995, spoke to the outlet ahead of the publication of his memoir Protecting Whitney, which is set to be released in January ...

  9. Soil color - Wikipedia

    en.wikipedia.org/wiki/Soil_color

    Highly oxidized red soil in Tirunelveli District, India. Red colors often indicate iron accumulation or oxidation in oxygen-rich, well-aerated soils. [4] Iron concentrations caused by redox reactions because of diffusion of iron in crystalline and metermorphic rock, in periodically saturated soils may also present red colors, particularly along root channels or pores.