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2. 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 .

3. 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. Also, representative soils have been selected for Puerto ...

4. Geophagia - Wikipedia

   en.wikipedia.org/wiki/Geophagia

   Geophagia. Silica in the soil that has been eaten by a woman shows up as white on this plain X-ray. Geophagia ( / ˌdʒiːəˈfeɪdʒ ( i) ə / ), also known as geophagy ( / dʒiˈɒfədʒi / ), [1] is the intentional [2] practice of eating earth or soil-like substances such as clay, chalk, or termite mounds. It is a behavioural adaptation that ...

5. Clay mineral - Wikipedia

   en.wikipedia.org/wiki/Clay_mineral

   Clay minerals are hydrous aluminium phyllosilicates (e.g. kaolin, Al 2 Si 2 O 5 ( OH) 4 ), sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations found on or near some planetary surfaces . Clay minerals form in the presence of water [1] and have been important to life, and many theories of ...

6. 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 ...

7. How to Grow Pumpkins the Right Way, According to ... - AOL

   www.aol.com/lifestyle/grow-pumpkins-way...

   Pay attention to watering. Hermanson says that pumpkins need regular watering, which will result in evenly moist soil. “Uneven watering will result in end rot, fruit drop, and splitting, so make ...