Greenhouse

Greenhouse Basics

100

This structure is covered with transparent or semi-transparent material and used to grow plants.

greenhouse

200

Name TWO environmental factors that can be controlled inside a greenhouse.

light, temperature, water, humidity, or pests

300

These 5 factors are important considerations when choosing a greenhouse type

crops grown, cost, climate, size, or heating source

400

Why is static electricity bad for greenhouses

attracts dust and debris 

500

greenhouse arrangement allows labor-saving equipment to be used inside

ridge-and-furrow

Types of Greenhouses

100

This greenhouse is attached to an existing building

lean-to

200

This free-standing greenhouse has equal roof slopes.

even span greenhouse

300

This greenhouse is the most popular and economical to construct.

Quonset greenhouse

400

This greenhouse is built on a south-facing slope to conserve energy

uneven span greenhouse

500

This greenhouse type has no interior support posts and low gable roofs.

Dutch greenhouse

Covering Materials

100

This rigid covering material has the highest light transmission

glass

200

This flexible material is the most common and least expensive

polyethylene

300

This material becomes cloudy with age and diffuses light well

fiberglass

400

This covering material is lightweight, impact resistant, and nonflammable.

acrylic

500

This covering material can last up to 25 years but is breakable and expensive

glass

Design & Placement

100

This factor is MOST important when selecting a greenhouse type.

crops to be grown

200

East–West greenhouses should be spaced this many feet apart

10–12 feet

300

North–South greenhouses may be spaced this many feet apart

5–6 feet

400

This is a disadvantage of Quonset greenhouses

wasted space along the sidewalls

500

This is a disadvantage of polyethylene covering material

high moisture condensation

REAL-WORLD SCENARIOS

100

A homeowner wants a small greenhouse attached to their house to help reduce heating costs.

lean-to greenhouse

200

A school has limited funds and needs a short-term covering for student plant projects

polyethylene

300

A commercial grower wants maximum land use and space for labor-saving equipment

ridge-and-furrow greenhouse

400

A greenhouse is being built in a windy region which greenhouse type should be chosen

Quonset

500

A producer needs a durable, rigid covering that allows very high light transmission and long life, even though it is expensive.

glass