Soil Ecology by https://padlet.com/allendel17/3hitqp6wanl2 Lauren & Chase en-us 2016-12-09 18:36:43 UTC 2025-12-09 13:16:12 UTC hello@padlet.com Review Questions nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/142881993
  • Why is soil important?  Provide as many specific examples as possible
  • What role does clay play in soil?  Be sure to include cation exchange capacity in you response.
  • What are the three main particles in soil?  What ratio of these particles make for the ideal soil?  Why?
  • How do you use a soil texture triangle?
  • What are some of the major characteristic of Florida’s soils?
  • How is soil formed?
  • What role does pH play in soil and its effects on plant growth?
  • What are the major nutrients found in soil that plants need to survive?
  • What is the difference between soil and dirt?

    • ]]>     2016-12-09 18:41:36 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/142881993     Why It's Important allendel17 https://padlet.com/allendel17/3hitqp6wanl2/wish/142883173 -a medium for plant growth
    -filters water
    -habitat for a variety of organisms such as worms
    -breaks down organic material
    -recycles nutrients
    -soils is the mixture of organic and geological material 
    -organic - decomposition from above
    -geological - from underlying parent rock below
    -bacteria in soil => usable nitrogen for plants]]>     2016-12-09 18:45:52 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/142883173     allendel17 https://padlet.com/allendel17/3hitqp6wanl2/wish/142884193 soil = the mixture of organic material and inorganic rock]]> 2016-12-09 18:49:24 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/142884193 The Role of Clay in Soil allendel17 https://padlet.com/allendel17/3hitqp6wanl2/wish/142885030 Clay can be positively or negatively charged

    -Not enough clay = potassium and nutrients can easily move through the soil and won't get taken up by plants
    -Too much clay = potassium, nutrients and water can't move through the soil

    ]]>     2016-12-09 18:52:36 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/142885030     3 Main Particles in Soil nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/142885441 -Sand 
    -Silt
    -Clay
    -The perfect mix of all three is 20% clay, 40% sand, and 40% silt
    -Soil as a filter - in Long island they have very sandy soil above their ground water which allows contaminated surface water to easily pass into the group water supply and little filtration occurs]]>     2016-12-09 18:54:21 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/142885441     Soil Texture Triangle nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143208348 -Soil classification is based on relative proportions of silt, sand and clay
    -Follow any two percentages to find the nominal name of the soil
    -Loam = holy grail of soil (40% sand, 40% silt, 20% clay)]]>     2016-12-12 18:39:46 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143208348     Major Characteristics of Florida Soil nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143445548 -consists of rock, sand, and marl; doesn't retain water or nutrients that well, keeping plants alive can be difficult
        -Myakka => covers most of FL (1.5 million acres), official state soil

    Different Characteristics in Different Regions
    -North/Central Florida = very sandy
    -Panhandle = large amounts of clay
    -Everglades = peat-based, extremely fertile
    -South Florida = shallow soil, high pH because of limestone bedrock]]>     2016-12-13 18:22:34 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143445548     How Soil is Formed nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143447765 *  When parent rock material is exposed to the atmosphere or when minerals are dropped on to the ground, soil formation begins.  In how well the soil is formed will affect the properties of the soil.
    *  The most important ingredient in soil formation is time.
    * Climate - warmer climates means more decomposition.]]>     2016-12-13 18:28:22 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143447765     Roles of pH and its effects on plant growth nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143454272 -pH is used to measure acidity. Soil values below 7 are considered acidic, values above 7 are considered alkaline, and 7 itself is neutral
    -Essential plant nutrients become more or less available depending on the pH of soil
     -Most plants do best in slightly basic soils, but some, like blueberries and azaleas, prefer strongly acidic soils]]>     2016-12-13 18:48:28 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143454272     Major nutrients found in soil nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143510787 * The three main nutrients found in soil are Nitrogen, Phosphorus, and potassium.  
    * Their also known as NPK.  
    * Other important nutrients that are found in soil is calcium, magnesium, and sulfur]]>     2016-12-14 01:24:32 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143510787     nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143511037 2016-12-14 01:29:26 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143511037 Difference between soil and dirt nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143511070 * Soil is the collection of minerals, air, water, animals, and other living matter like decaying bodies, and all the becomes compacted over time
    * Dirt is basically particles moved over time
    * In soil you can grow things, but in dirt there is no nutrients nothing can grow and soil has nutrients and there is living organisms in soil.]]>     2016-12-14 01:30:16 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143511070     nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143511855 2016-12-14 01:44:23 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143511855 nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143511958 2016-12-14 01:46:46 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143511958 allendel17 https://padlet.com/allendel17/3hitqp6wanl2/wish/143686650 2016-12-14 18:23:02 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143686650 Sources nelsonch19 https://padlet.com/allendel17/3hitqp6wanl2/wish/143687256  - https://www.sciencenews.org/blog/science-public/dirt-not-soil
    - http://soils.tfrec.wsu.edu/mg/nutrients.htm
    - Soil presentation notes
    - http://www.oneplan.org/Water/soil-triangle.asp
    - https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/?cid=nrcs142p2_054167
    -http://gardeningsolutions.ifas.ufl.edu/care/planting/florida-soil.html
    -http://www.fairchildgarden.org/home-gardening/gardening-how-tos/soils-media]]>     2016-12-14 18:24:53 UTC https://padlet.com/allendel17/3hitqp6wanl2/wish/143687256