Quiz 1 Flashcards
what is the biggest challenge in greenhouse growing?
Capital, land, and supplies are costly. Maintenance is also a large challenge.
Extensive vs Intensive growing
Extensive growing has a Low crop yield per unit of land, Intensive growing has a High crop yield per unit of land.
Greenhouse effect
The greenhouse effect occurs when greenhouse gases in a planet’s atmosphere trap some of the heat radiated from the planet’s surface, raising its temperature.
Greenhouse = ?
A controlled environment
What is a controlled environment?
Using a structure and mechanics to create a growing environment.
Cultural amendment
An application of something by humans
what are the two broad categories of greenhouses?
Freestanding and Gutter-connected
What are the two types of freestanding greenhouses?
Lean-to, Quonset
What are the five common types of Gutter-connected greenhouses?
Arch, A-Frame, Venlo, Saw tooth, Open roof.
What is the most economical kind of gutter-connected greenhouse?
Arch
What are the four main structural components of a greenhouse?
Rafters, Purlins, Posts/Columns, Side walls
Rafters
Primary Vertical support.
Purlins
Horizontal support
Posts/Columns
Vertical support
Side walls
Aka curtains, can be glass, plastic, roll up or concrete.
Framing materials for greenhouses are usually..
Aluminum, steel, or treated wood. Aluminum is the most economical and long-lasting.
Crop yield is higher for Greenhouse or Outdoor Ag production?
Greenhouse
Michigan is the (?) largest floriculture producer in the US
Third
