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greenhouse managemen

unit 4 Greenhouse Sysytems

QuestionAnswer
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 Capillary mat system
automated system utilizing fabrics to insulate the greenhouse at night Energy curtains
a system in which large exhaust fans draw air through a moistened cellulose pad mounted on the opposite end of the structure Fan-and-pad cooling system
fans bring in small amounts of cool outside air and mix it with the warm air Fan-tube ventilation
equipment used for the irrigation of plants with exact proportions of fertilizers obtained from a concentrate of water-fertilizer and water Fertilizer injector system
cooler and more efficient that incandescent lights; have a wide range of wavelengths and long life Fluorescent lighting
fog is generated inside; as the minute fog droplets evaporate, heat is absorbed Fog-evaporative cooling system
localized heater units that force hot air directly into a duct system Forced air-heaters
efficient and effective supplemental lighting system High Intensity Discharge (HID) lightingsystem
manual watering of plants Hose watering
water is heated in a boiler and pumped through pipes Hot water heat
inefficient and gives off primarily infra-red wavelengths; often used for photoperiod control Incandescent lighting
individual heater units that produce infrared radiation Infrared radiant heaters
watering method; tiny droplets delivered periodically keep plants moist Intermittent mist system
air is exchanged through open ridge and side vents and controlled by thermostats Natural ventilation
water is applied over the canopy of the plants with spray nozzles Overhead watering
watering around the outside of a flower bed Perimeter irrigation
automated system utilizing fabrics to block light from reaching crops Shade curtains
automated system utilizing fabrics to insulate the greenhouse at night 19. Short-day curtains
water is applied to the growing medium by slowly saturating the medium Soaker hose system
water heated to a boil and steam travels through pipes in the greenhouse Steam heat
water is carried to each pot by a microtube; foliage is not wet in this process Tube irrigation
Created by: rhorn
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