Iha Education May Webinar - Fafard Media Additives & Alternatives Update Part 1

10 Questions | Total Attempts: 75

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Webinar Quizzes & Trivia

This quiz is to review the May 14th webinar presented by Fafard


Questions and Answers
  • 1. 
    Air space goes up and container capacity goes down in a bark-based mix compared to a peat based mix.
    • A. 

      True

    • B. 

      False

  • 2. 
    The volume of water retained after drainage from saturation, but before evaporation is termed?
    • A. 

      Total porosity

    • B. 

      Container capacity

    • C. 

      Air space

    • D. 

      Bulk density

  • 3. 
    Biological activity to suppress root rot pathogens like Pythium is highest in?
    • A. 

      Top of bog

    • B. 

      Middle of bog

    • C. 

      Bottom of bog

    • D. 

      All levels of bog

  • 4. 
    Western peat typically has a lower pH than New Brunswick peat.
    • A. 

      True

    • B. 

      False

  • 5. 
    A mix with 30% rice hulls would be best for?
    • A. 

      Seed propagation

    • B. 

      General bedding plant production

    • C. 

      Perennials

    • D. 

      None of the above

  • 6. 
    What nutrient has been found to be in higher concentrations when comparing perlite-based mixes versus rice hull-based mixes?
    • A. 

      Boron

    • B. 

      Copper

    • C. 

      Aluminum

    • D. 

      Silicon

  • 7. 
    Irrigation management is not an issue with rice hull-based mixes.
    • A. 

      True

    • B. 

      False

  • 8. 
    Nitrogen "tie-up" does not appear to be an issue with rice hull mixes below 30%.
    • A. 

      True

    • B. 

      False

  • 9. 
    Fafard's facilities screen southern pine bark to fine and coarse sizes. What are the bark screen sizes in inches for fine and coarse?
    • A. 

      5/8", 3/8"

    • B. 

      3/8", 5/8"

    • C. 

      1/2", 5/8"

    • D. 

      5/8", 1/2"

  • 10. 
    Slime mold (brown or yellow growth on media surface) is associated with:
    • A. 

      Greenhouse humidity

    • B. 

      Bark based mixes

    • C. 

      Warm temperatures

    • D. 

      All of the above

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