Arkansas Greenhouse Management Unit 4: Systems
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| capillary mat system | a form of sub-irrigation in which potted plants are set on a moist synthetic mat and water moves upward through the drain holes into the growing medium by wick action
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| energy curtains | automated system utilizing fabrics to insulate the greenhouse at night
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| fan-and-pad cooling system | system in which large exhaust fans draw air through a moistened cellulose pad mounted on the opposite end of the structure
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| fan-tube ventilation | fans bring in small amounts of cool outside air and mix it with the warm air
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| fluorescent lighting | cooler and more efficient than incandescent lights; have a wide range of wavelengths and long life
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| fertilizer injector system | equipment used for the irrigation of plant with exact proportions of fertilizers obtained from a concentrate of liquid fertilizer
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| fog-evaporative cooling system | fog is generated inside; as the minute fog droplets evaporate, heat is absorbed
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| forced air-heaters | localized heater units that force hot air directly into a duct system
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| high intensity discharge (HID) lighting system | efficient and effective supplement lighting system
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| hose watering | manual watering of plants
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| hot water heat | water is heated in a boiler and pumped through pipes
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| incandescent lighting | inefficient and gives off primarily infra-red wavelengths; often used for photoperiod control
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| infrared radiant heaters | individual heater units that produce infrared ratiation
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| intermittent mist system | watering method where tiny water droplets are delivered periodically
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| natural ventilation | air is exchanged through open ridge and side vents and controlled by thermostats
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| overhead watering | water is applied over the canopy of the plants with spray mozzles
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| perimeter irrigation | watering around the outside of a flower bed
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| shade curtains | system utilizing fabrics to block light from reaching crops
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| short-day curtains | automated system utilizing dark fabrics to control light for photoperiod control
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| soaker hose system | water is applied to the growing medium by slowly saturating the medium
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| steam heat | water heated to boiling and steam travels through pipes in the grreenhouse
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| tube irrigation | water is carried to each pot by a microtube; foliage is not wet in this process
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Created by:
Kim Moody
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