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  2. Claypan - Wikipedia

    en.wikipedia.org/wiki/Claypan

    Plants with shallow roots, might not withstand the soil contraction forces due to the shrinkage of clay in the dry season. The low water infiltration rate and hydraulic conductivity may lead to a perched water table form on top of the claypan layer. Water in the perched water table evaporates instead of uptake by plants, especially in the dry ...

  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. Clay - Wikipedia

    en.wikipedia.org/wiki/Clay

    Clay is a type of fine-grained natural soil material containing clay minerals [1] (hydrous aluminium phyllosilicates, e.g. kaolinite, Al 2 Si 2 O 5 4). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide .

  5. List of Superfund sites in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_Superfund_sites_in...

    Dredging of the harbor and soil removal have been completed, and decontamination of the isolated soil continues. During cleanup, it was discovered that the site contained additional contamination on the former Waukegan Coke Plant property. Soil removal there is also complete. [3] 12/30/1982: 09/08/1983: N/A: N/A: N/A ILD003817137: Petersen Sand ...

  6. Here are the top 5 invasive plants to look out for in your ...

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    Researchers estimate 1 out of every 3 plants in Illinois woodlands, wetlands and grasslands are non-native. Here are the top 5 invasive plants to look out for in your Illinois backyard this spring ...

  7. Physical properties of soil - Wikipedia

    en.wikipedia.org/wiki/Physical_properties_of_soil

    Soil texture is determined by the relative proportion of the three kinds of soil mineral particles, called soil separates: sand, silt, and clay. At the next larger scale, soil structures called peds or more commonly soil aggregates are created from the soil separates when iron oxides, carbonates, clay, silica and humus, coat particles and cause ...

  8. Should Illinois homeowners and gardeners be worried about the ...

    www.aol.com/illinois-homeowners-gardeners...

    "Anything growing in your garden should be safe," confirms Athey. This article originally appeared on Journal Star: lllinois cicadas 2024: What gardeners should know about emerging cicadas Show ...

  9. Red soil - Wikipedia

    en.wikipedia.org/wiki/Red_soil

    Red soils contain large amounts of clay and are generally derived from the weathering of ancient crystalline and metamorphic rock. They are named after their rich red color, varying from reddish brown to reddish yellow due to their high iron content. [2] Red soil can be good or poor growing soil depending on how it is managed.

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