Three reasons to grow crops in a greenhouse
Grow out of season, Grow crops that aren't adapted to your location, Speed up growth of crops
a structure that is covered with a transparent material that allows sufficient sunlight to enter for the purpose of growing and maintaining plants
Five greenhouse production states
Washington, California, Florida, Colorado, and Texas
Five main competitors to U.S. greenhouse crops
Columbia, Australia, New Zealand, Netherlands, and Brazil
Six commercial uses of greenhouses
Fresh flowers, flowering plants, foliage (green) plants, bedding plants, vegetable production, and woody ornamentals
Three main careers in greenhouse management.
Grower, Wholesalers, and Retailers
What are a growers responsibilities in the overall workings of greenhouse management?
Produces crops for sale to wholesalers
What are a wholesalers responsibilities in the overall workings of greenhouse management?
Sells a wide range of crops and products to retail businesses and Serves as a supermarket for the retailers to buy supplies
What are a retailers responsibilities in the overall workings of greenhouse management?
Sells products to the general public
composed of rafters, chords and struts that support the roof
What is an even span greenhouse?
Greenhouse with two roof slopes of equal pitch and width
Benefits of an even span greenhouse
Excellent light, ventilation, and temp control
Disadvantages of an even span greenhouse
Wasted heat air in the gables
What is a Gothic Arch greenhouse?
A greenhouse with a pointed arch roof.
Benefits of a Gothic Arch greenhouse
No trusses in these greenhouses
What is a Quonset greenhouse?
A greenhouse with a semicircular arch that starts at ground level or on top of a sidewall
Benefits of a Quonset greenhouse
Less Expensive to construct than other greenhouse styles and Few shadows
Disadvantages of a Quonset greenhouse
Cannot support as much wind and snow as other greenhouse styles
What is a Ridge and Furrow greenhouse?
Several greenhouses connected along the length of the eaves
Benefits of a Ridge and Furrow greenhouse
Large interior areas, Reduced heat loss, and Less expensive construction than multiple greenhouses
Disadvantages of a Ridge and Furrow greenhouse
More difficult to control pest and temperature than other greenhouse and Difficult snow removal
What is a Lean-to greenhouse?
Greenhouse attached to a building.
Benefits of a Lean-to greenhouse
Less roof support than other greenhouses needed and Heating is usually less expensive
Disadvantages of a Lean-to greenhouse
There is limited space in this greenhouse style
What is a Cold Frame greenhouse?
greenhouse with no heating or cooling system
What are the advantages of glass covered greenhouses?
Best light transmission of any covering
What are the disadvantages of glass covered greenhouses?
Breakable, high heat loss, expensive
What are the advantages of flexible plastic films for covering a greenhouse?
inexpensive, temporary, easy to install
What kind of plastic sheet covering will our new greenhouse have?
What is the most common brand name of polycarbonate?
Advantages of plastic sheet coverings?
light weight and very durable
Disadvantages of plastic sheets?
not as much light transmission as glass and more expensive than flexible plastic sheets
Advantages of metal frames for greenhouse.
minimum maintenance and long lasting, easy to assemble, often comes pre-drilled
Type of wood that should be used to frame a greenhouse.
chromated copper arsenate
Three heating systems for greenhouses
boilers, unit heaters, radiant heaters
Optimum day time temp for greenhouse
Optimum night time temp for greenhouse
two types of boiler heat
steam and hot water
Most common brand of unit heater
How do Radiant Heaters differ from other heater types?
heats objects not air
If a greenhouse has no cooling system and it is 95 degrees outside what would the temperature inside be?
If a greenhouse only natural ventilation and it is 95 degrees outside what would the temperature inside be?
If a greenhouse has a fan and cooling cooling system and it is 95 degrees outside what would the temperature inside be?
If a greenhouse has fan and cooling cooling system and a shade cloth and it is 95 degrees outside what would the temperature inside be?
If a greenhouse has an Evaporative cooling system and it is 95 degrees outside what would the temperature inside be?
If a greenhouse has an Evaporative cooling system and a shade cloth and it is 95 degrees outside what would the temperature inside be?