Soil Mgmt #6

Card Set Information

Author:
jenfox
ID:
66192
Filename:
Soil Mgmt #6
Updated:
2011-02-13 23:21:14
Tags:
Soil Organisms
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Description:
Soil organisms
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  1. How many tons of living organisms are in every acre of soil?
    Two or more
  2. Yearly worldwide output of sugar by photosynthesis?
    150 tons
  3. The plants that animals consume
    Primary producers
  4. The animals that consume plants
    Primary consumers
  5. Predatory animal species
    Secondary consumers
  6. Materials that resist decay and create a slow release of nutrients in the soil
    Humus
  7. Bacterial that exist in a soil without oxygen
    Anaerobic
  8. Fungi resemble mass threads
    Mycelium
  9. Detrimental fungi that causes plant wilt
    Verticillium
  10. The process by which microorganisms decompose organic matter into simple inorganic forms that plants can use
    Mineralization
  11. How much nitrogen, trapped as gas in the atmosphere, covers an acre of the earth's surface?
    34500 tons
  12. The process by which microorganisms convert nitrogen in the atmosphere into ammonia that plants and utilize.
    Nitrogen fixation
  13. The process by which nitrates are changed back into nitrogen gas by bacteria.
    Denitrification

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