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Greenhouse Management

Greenhouse Management. Unit 1. Why a Greenhouse?. To grow crops out of season To grow crops not adapted to the locality To speed up the growth of crops. What are commercial greenhouses used for?. 1 . Fresh flowers- flowers which are cut from the plant prior to sale

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Greenhouse Management

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  1. Greenhouse Management Unit 1

  2. Why a Greenhouse? • To grow crops out of season • To grow crops not adapted to the locality • To speed up the growth of crops

  3. What are commercial greenhouses used for? • 1. Fresh flowers-flowers which are cut from the plant prior to sale (roses, mums, carnations, etc.)

  4. 2. Flowering Plants- flower bearing plants which are sold in a pot (chrysanthemum, etc.)

  5. 3. Green Plants- (foliage plants) - plants sold in a pot and valued more for their foliage than their flowers (Ivy, Rubber Trees, Ferns, etc.)

  6. 4. Bedding Plants - young plants sold for planting around the home (Vegetables, Impatiens, Marigold, etc.)

  7. 5. Vegetable Production-grown to maturity in a greenhouse (Tomatoes, Lettuce)

  8. 6. Woody Ornamental Propagation • Reproducing more plants such as: azalea, forsythia, gardenia, etc.

  9. Terms • Greenhouse – a structure that is covered with a transparent material that allows sufficient sunlight to enter for the purpose of growing and maintaining plants.

  10. Future of theGreenhouse Industry • Growing demand for greenhouse crops • Expect increased production of green plants, flowering plants, bedding plants • Increased awareness of interior & exterior landscapes • Potted plants are competitive on a more local basis due to difficulties and expense of long distance transportation

  11. What role do greenhouses have in the U.S. and in agriculture? • Variety of products with many uses • Employment Opportunities • Economy- Sell almost $20 BILLION in floriculture products/ year • Fulfill an emotional need in people

  12. Main Careers in Greenhouse Management Basics • Grower • Wholesaler • Retailer • How do these jobs differ?

  13. Careers…. 1. Grower • Produces crops for sale to wholesalers • Has expertise in producing one or more crops (like poinsettias or chrysanthemums) • Generally do not market or advertise

  14. 2. Wholesaler • Sells a wide range of crops and products to retail businesses • Serves as a supermarket for the retailers to buy supplies

  15. 3. Retailer • Sells products to the general public • Location is important for marketing • Includes many types of businesses • Florist Shops • Retail Greenhouses • General Retail Stores

  16. Flower Grader Horticulturist Plant Taxonomist Floral Shop Operator Plant Geneticist Plant Nutritionist Plant Pathologist Plant Scientist Greenhouse Manager Plant Breeder Pest Control Technician Certified Seed Grower Agricultural Journalist Magazine Writer Beekeeper Marketing/Advertising Manager Purchasing Manager More Careers

  17. Basic Greenhouse Styles

  18. BASIC GREENHOUSE STYLES • BASIC STYLES • EXAMPLES OF GREENHOUSE USES • BASIC GREENHOUSE COVERINGS • COMMON FRAMING MATERIALS

  19. DREAM GREENHOUSE

  20. A. BASIC STYLES • EVEN SPAN • GOTHIC ARCH • QUONSET • RIDGE AND FURROW • LEAN-TO • COLD FRAME

  21. TERMS • TRUSSES- composed of rafters, chords and struts that support the roof

  22. 1. EVEN SPAN • Greenhouse with two roof slopes of equal pitch and width • Benefits: • Excellent light, ventilation, and temp control • Disadvantages: • Wasted heat air in the gables

  23. 1. EVEN SPAN

  24. EVEN SPAN

  25. EVEN SPAN

  26. EVEN SPAN

  27. EVEN SPAN

  28. 2. GOTHIC ARCH • POINTED ARCH ROOF • TRUSSES HAVE BEEN ELIMINATED • Not as popular today • Can have sidewalls • Side walls are a short base wall of a solid material • often cinderblocks

  29. 2. GOTHIC ARCH

  30. GOTHIC ARCH

  31. 3. QUONSET • A greenhouse with a semicircular arch that starts at ground level or on top of a sidewall • (Half moon shape) • Benefits: • Less Expensive to construct • Few shadows • Disadvantage: • Cannot handle as much wind and snow

  32. 3. QUONSET

  33. QUONSET

  34. QUONSET

  35. QUONSET WITH TOP VENT

  36. 4. RIDGE AND FURROW • Several greenhouses connected along the length of the eaves • Benefits: • Large interior areas • Reduced heat loss • Less expensive construction • Disadvantages: • More difficult to control pest and temperature • Difficult snow removal

  37. RIDGE AND FURROW

  38. RIDGE AND FURROW

  39. RIDGE AND FURROW

  40. RIDGE AND FURROW

  41. RIDGE AND FURROW

  42. RIDGE AND FURROW

  43. RIDGE AND FURROW

  44. RIDGE AND FURROW

  45. 5. LEAN-TO • ATTACHED TO EXISTING BUILDING • USUALLY ON THE EAST OR SOUTH SIDE • Benefits: • Less roof support needed • Heating is usually less expensive • Disadvantage: • Limited space

  46. LEAN-TO

  47. LEAN-TO

  48. Inside ShedLean-To

  49. LEAN-TO

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