hort chapter 5

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Author:
btknipe
ID:
287887
Filename:
hort chapter 5
Updated:
2014-11-02 17:40:36
Tags:
hort chapter
Folders:
mma
Description:
mma
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  1. container growing medium aka
    soil
  2. an idea soil is one which the solid portion occupies about ___% of the volume of soil and the pore spaces between the solid particles accupies the other ____%
    50/50
  3. growing medium in latin
    plural media
  4. any material in which plants are grown
    growing medium
  5. the texture of soil is important  in determing
    plant root access to air and water and impact plant nutrient  availability
  6. texture results from the ___
    size of the mineral particles that make up the soil
  7. undisturbed soil comes in different layers called
    horizons
  8. the most weathered layer of soil with most organic matter, and where most plant root growth takes place
    topsoil
  9. below the surface layer are various subsoil layers. these are typically more __ with less ____. they act as the ___for the surface soil.
    below that is the ___ from which the soil developed. below this is ___
    • firm
    • organic mateer
    • mineral reservoir
    • parent material
    • bedrock
  10. large particle size ___
    intermediate __
    small ___
    • sand
    • silt
    • clay
  11. a coarse soil often described as gritty to the touch even when moistened, contains a lot of __
    sand
  12. soils with a lot of sand contain large ___
    spaces between particles
  13. a fine soil that feels sticky or plastic when wet is composed mostly of ____ and has primarily __ spaces between particles
    • clay
    • very small
  14. soil that feels smooth to touch
    silt
  15. the only way to alter texture
    removal and replace

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