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  2. 12 Trees You Should Plant In The Fall - AOL

    www.aol.com/12-trees-plant-fall-025800535.html

    Soil pH: Acidic to neutral (5.0-7.4) USDA Hardiness Zone: 3 to 9 Red maples are named for the color of their flowers, fruit, and twigs, but these trees also produce brilliant red autumn foliage.

  3. Have you tested your garden soil? Here's what you should know

    www.aol.com/tested-garden-soil-heres-know...

    The fall, however, may be a superior time of year to have your soil tested in order to evaluate nutrient levels of your soil, and even apply certain fertilizers and soil amendments.

  4. Soil pH - Wikipedia

    en.wikipedia.org/wiki/Soil_pH

    Soil pH is a key characteristic that can be used to make informative analysis both qualitative and quantitatively regarding soil characteristics. [ 1 ] pH is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+ or, more precisely, H3O+aq) in a solution.

  5. Salix nigra - Wikipedia

    en.wikipedia.org/wiki/Salix_nigra

    Salix nigra is a medium-sized deciduous tree, the largest North American species of willow, growing to 10–30 m (35–100 ft) tall, exceptionally up to 45 m (148 ft), with a trunk 50–80 centimeters (20–30 in) diameter. The bark is dark brown to blackish, becoming fissured in older trees, and frequently forking near the base. [3]

  6. Soil acidification - Wikipedia

    en.wikipedia.org/wiki/Soil_acidification

    Soil acidification. Soil acidification is the buildup of hydrogen cations, which reduces the soil pH. Chemically, this happens when a proton donor gets added to the soil. The donor can be an acid, such as nitric acid, sulfuric acid, or carbonic acid. It can also be a compound such as aluminium sulfate, which reacts in the soil to release protons.

  7. Acer rubrum - Wikipedia

    en.wikipedia.org/wiki/Acer_rubrum

    Acer rubrum, the red maple, also known as swamp maple, water maple, or soft maple, is one of the most common and widespread deciduous trees of eastern and central North America. The U.S. Forest Service recognizes it as the most abundant native tree in eastern North America. [4] The red maple ranges from southeastern Manitoba around the Lake of ...