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  2. USDA soil taxonomy - Wikipedia

    en.wikipedia.org/wiki/USDA_soil_taxonomy

    About 1,000 soil subgroups are defined in the United States. [6] A soil family category is a group of soils within a subgroup and describes the physical and chemical properties which affect the response of soil to agricultural management and engineering applications. The principal characteristics used to differentiate soil families include ...

  3. Chernozem - Wikipedia

    en.wikipedia.org/wiki/Chernozem

    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 ...

  4. Travis Perkins - Wikipedia

    en.wikipedia.org/wiki/Travis_Perkins

    A lorry for Travis Perkins unloading in London. (2015) A typical Travis Perkins yard. (2014) The former Ripaults Factory, a grade II listed building in Enfield, taken over by Travis Perkins in 2015. [2] Travis Perkins plc is a British builders' merchant and home improvement retailer with head offices based in Northampton.

  5. Houston black (soil) - Wikipedia

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

    Houston black soil extends over 1,500,000 acres (6,100 km 2) of the Texas blackland prairies and is the Texas state soil. The series is composed of expansive clays and is considered one of the classic vertisols. [1] Houston black soils are used extensively for grain sorghum, cotton, corn, small grain, and

  6. Unified Soil Classification System - Wikipedia

    en.wikipedia.org/wiki/Unified_Soil...

    The Unified Soil Classification System (USCS) is a soil classification system used in engineering and geology to describe the texture and grain size of a soil. The classification system can be applied to most unconsolidated materials, and is represented by a two-letter symbol. Each letter is described below (with the exception of Pt):

  7. Travis Kelce Names His Top 3 Taylor Swift Songs - AOL

    www.aol.com/entertainment/travis-kelce-names-top...

    Travis Kelce loves The Tortured Poets Department just like the rest of us.. Kelce, 34, was asked to rank his top three songs by his superstar girlfriend, Taylor Swift, at his second annual Kelce ...

  8. Topsoil - Wikipedia

    en.wikipedia.org/wiki/Topsoil

    Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity.

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

    en.wikipedia.org/wiki/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 .