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Matt Kleinhenz Extension Vegetable Specialist Horticulture and Crop Science. High Tunnels: Are They for You?. High Tunnels: Are They for You?. Background Information • high tunnel structures • high tunnel versus other techniques, systems • specific opportunities, requirements. STRUCTURES.

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Matt Kleinhenz Extension Vegetable Specialist Horticulture and Crop Science


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    Presentation Transcript
    1. Matt KleinhenzExtension Vegetable SpecialistHorticulture and Crop Science High Tunnels:Are They for You?

    2. High Tunnels:Are They for You? Background Information• high tunnel structures• high tunnel versus other techniques, systems• specific opportunities, requirements

    3. STRUCTURES

    4. image courtesy B. Lamont, PSU high tunnel

    5. Major HT Characteristics • metal, wood, and/or PVC frame• clear plastic cover (1-2 layers)• soil floor (not required)• peak height at least 8 ft

    6. OARDC March 2006

    7. image courtesy Noble Fndn. image courtesy Wild Onion Farm

    8. Haygrove

    9. Plasticulture in China image courtesy Will McGuire

    10. image courtesy Chef's Garden

    11. will continue to change High Tunnel Costs • depend strongly on size, design, features

    12. image courtesy http://www.aesop.rutgers.edu/~horteng/hightunnels.htm High Tunnel "Chassis"

    13. OARDC April 2006 chassis = frame, plastic, irrigation

    14. OARDC November 2003

    15. High Tunnel Costs chassis+ repair/replace+ climate control+ labor

    16. High Tunnel Costs + climate control • ventilation • raised beds, row covers• sensors• heating (temporary, permanent)

    17. Major HT Materials Costs • frame (material, durability, portability, number braces)• film (number layers, type)• end-, side-wall design• climate control

    18. High Tunnel Costs • depend strongly on size, design, features … in OH,new materials cost $2.38-7.24 (avg. $3.95/ft2)

    19. High Tunnel Costs • cannot be insured• usually not taxed (depends on local ordinances)

    20. "Do not remove a fly from your friend's head with a hammer." - Chinese Proverb

    21. HIGH TUNNELVERSUS OTHERTECHNIQUES,SYSTEMS

    22. images courtesy Ken-Bar, MN Artists, The OSU

    23. Season ExtensionTechniques • transplanting• raised beds• mulches, row covers• protected culture

    24. image courtesy Ken-Bar

    25. What makes high tunnels work? Light carries heat. Enters, but does not leave HT. When dark, plastic limits heat loss to sky. image courtesy D. and M. Reckamp, MO.

    26. Wooster, OH 2003-2004

    27. Natural Law Q10 rate at X + 10 temprate at X temp = 2

    28. SPECIFICOPPORTUNITIES,REQUIREMENTS

    29. OPPORTUNITIES

    30. High Tunnel Use: … can extend the season(help farmers "sell high")

    31. plant harvest Field HT Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Plant, Harvest Dates

    32. 2007

    33. 2007

    34. High Tunnel Use: … can minimize supply gaps (crop stress)

    35. DISEASESINSECTSWEEDS

    36. High Tunnels: • protect crops• save days

    37. OARDC November 2003

    38. Most Current HT Users … … also farm open fields… grow vegetables (use for other crops increasing)

    39. RURAL,URBANHT USERS

    40. Photo courtesy K. Date, The Countryside Program OH population density254 people/mi2

    41. CONVENTIONAL ORGANIC SUSTAINABLE High Tunnel Users Approach has implications for high tunnel users.

    42. LOW HIGH • FARM SIZE, INCOME• HT EXPERIENCE High Tunnel Users Also vary in market approach (direct, wholesale, etc.) and location.