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  2. Humus - Wikipedia

    en.wikipedia.org/wiki/Humus

    It is also used to describe a topsoil horizon that contains organic matter (humus type, [4] humus form, [5] or humus profile [6]). Humus has many nutrients that improve the health of soil, nitrogen being the most important. The ratio of carbon to nitrogen of humus commonly ranges between 8:1 and 15:1 with the median being about 12:1. [7]

  3. Topsoil - Wikipedia

    en.wikipedia.org/wiki/Topsoil

    The United States loses almost 3 tons of topsoil per acre per year. [16] 1 inch (2.5 cm) of topsoil can take between 500 [17] and 1,000 years [18] to form naturally, making the rate of topsoil erosion a serious ecological concern. Based on 2014 trends, the world has about 60 years of topsoil left. [18] [19]

  4. 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.

  5. The 35 Best Raised Garden Bed Ideas to Transform Your Outdoor ...

    www.aol.com/35-best-raised-garden-bed-122000463.html

    For instance, putting a garden bed near a kitchen window might serve as a gentle reminder to water your plants, says Annie Thornton, Houzz outdoor design expert. 8. Blockhead

  6. 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]

  7. Play Letter Garden Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/letter...

    Enjoy a word-linking puzzle game where you clear space for flowers to grow by spelling words.

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