Download - Greenhouse Management Objective: Understand greenhouse structures, production and maintenance
Greenhouse Management
Objective: Understand greenhouse structures, production and maintenance.
What’s the point of a Greenhouse?
What’s the point of a Greenhouse?
1. The “Greenhouse Effect”-collects and stores heat from the sun (radiant heat)
2. Provides a protective environment to grow plants
3. Many detached houses can be used as connected houses
Greenhouse Structures
Detached Houses Quonset
Lean to
Even span
Uneven span
Detached HousesAdvantages
Easy to program and maintain temperature
Easy to ventilate without exposing the plants to blasts of cold air
Disadvantages
Requires more energy to heat and cool
Higher initial cost
Detached Houses Draw an image and write a brief description of each type of detached house
Greenhouse How To BookChapter 1- Choosing The Right Structure
Page 1-Detached Housing Options
Connected Houses
Ridge and furrow
Barrel vault
Dutch-Venlo
Saran-covered
Connected Houses
Advantages
Requires less land area
Less construction materials
Heat loss is less
Disadvantages
Snow build-up in connecting gutters
Gutters shade parts of the greenhouse
Connected Houses
Draw an image and write a brief description of each type of connected house
Greenhouse How To BookChapter 1- Choosing The Right Structure
Page 2-Connected Housing Options
Greenhouse Equipment &
Controls
Greenhouse Equipment &
Controls 1. Heaters- gas or electric
2. Thermostats- controls the temperature, should be at plant level
3. Timers-for lights, shade cloth, irrigation, etc.
4. Evaporative cooling systems1. Most effective method for cooling a
greenhouse
2. Constructed of thick corrugated cardboard
3. Reduces watering due to higher humidity created by evaporation from the dripping water in the cool pad
Greenhouse Equipment &
Controls5. Exhaust fans- pulls hot air from the greenhouse
6. Vents- located at the opposite end from the exhaust fan. Vents open to allow fresh air in the greenhouse.
7. Circulation fans- circulates air in the greenhouse even when the exhaust fan is not running. Provides a uniform temperature throughout the greenhouse.
8. Misting system- cools the greenhouse and provides a fine mist for seeds and cuttings.
Greenhouse Equipment &
Controls 9. Overhead irrigation system- waters greenhouse or shadehouses but may not give the deep watering some plants need.
10.Drip irrigation- tubes with emitters go to individual pots for water. A very efficient way to water.
11.Lights- provide additional lighting for plants
Greenhouse Equipment &
Controls Draw an image of the environmental controls used in the KHS Greenhouse
Greenhouse How To BookChapter 2- Greenhouse Equipment & Controls
Page 3-Environmental Controls in the KHS Greenhouse
Greenhouse Coverings
1. Greenhouse film(polyethylene film)
3-6 mil thick
UV treated
Inexpensive
Long lasting
Easy to replace
2. Acrylic panels Energy efficient
Impact resistant
Available in a variety of widths and lengths
3. Polycarbonate panels
Twin wall panels
Corrugated panels
Available in a variety of widths and lengths
Relatively expensive
4. Solexx panels Flexible
Twin wall
3-6 mil thick
Opaque
Relatively expensive
Greenhouse Coverings
Greenhouse How To Book Chapter 3-Choosing the Right Greenhouse Covering
In this chapter include a graphic and description of each type of greenhouse covering
Greenhouse Plant Terminology
Greenhouse Plant Terminology
Annual
Biennial
Perennial
Sow
Direct sowing
Indirect sowing
Media
Deadheading
Pinch
Full sun
Part shade
Shade
Bedding Plant Soils/Media
Bedding Plant Soils/Media
1. Vermiculite
2. Perlite
3. Peat moss
4. Sand
5. Bark
6. Commercially prepared mix
Bedding Plant Soils/Media
Greenhouse How To Book Chapter 4-Choosing the Right Soil/Media
In this chapter include a graphic and description of each type of bedding plant soil/media
Containers
Containers1. Flat
2. Cell pack
3. Peat pots
4. Eco pots
5. Jiffy 7
6. Plastic pots
7. Clay pots
8. Hanging baskets
ContainersGreenhouse How To Book
Chapter 5-Choosing the Right ContainerIn this chapter include a graphic and description of each type of container
In your description include the pros & cons of each container
Seed Production
Seed Production
1• Preparing for
Seeds
2• Sow Seeds
3• Germination
Seed ProductionGreenhouse How To Book
Chapter 6-How to Plant Seeds List the key steps involved in seed production
Classify the steps into 3 categories: Preparing for Seeds, Sowing Seeds, Germination
Cutting Production
Cutting Production
Plants easy to propagate by cuttingsIvy
Pothos
Wandering Jew
How to properly take cuttings (stem)
Cutting Production
Greenhouse How To Book Chapter 7-How to Take Cuttings
List plants easy to propagate from cuttings
List the key steps involved in taking cuttings
Bedding Plant Problems
Bedding Plant Problems
1. Cultural Disorders
2. Diseases
3. Pests
Bedding Plant Problems 1. Cultural Disorders Seed
germination problems
Fertilization problems
Uneven growth problems
Tall & spindly growth problems
Causes &
Solutions
Bedding Plant Problems
2. DiseasesSolutionsUse sterilized soil
Use fungicides
Improve air circulation
Increase air temperature around plant
Damping off- seedlings fall over causing the stem to rot
Botrytis- lower leaves are brown, rotting and drying out
Bedding Plant Problems 3. PestsPlants or seedlings missing caused by slugs,
snails, or roaches
Holes in the leaves, damaged leaves or missing plant parts
Aphids
Spider mites
Scale
Thrip
Whiteflies
Fungus gnats
Leaf miner
Cutworms
Slugs
Caterpillars
Identifying features?Control
methods?
Bedding Plant Problems
Greenhouse How To Book Chapter 8-How to Address Bedding Plant Problems
List the 4 key Cultural Disorders and the CAUSES & SOLUTIONS for each
Describe 2 Diseases associated with Bedding Plants. Give a picture for each. Describe a solution for diseases.
For each Pest give a description of identifying features. Give control method specific to each pest. Provide a picture for at least 3 of the Pests.
Greenhouse Maintenance
Greenhouse Maintenance
Structure1.
Painting2.
Flooring 3. Doors
Replace Covering1. Glass cracked
2. Fiberglass
3. Torn/damag
ed film
Equipment Repair
1. Heater2.
Ventilation3.
Irrigation4. Lighting
Pest Control
1. Weeds 2. Insects
3. Diseases
Plant Maintenance