Gourt > Science > Agriculture > Horticulture > Vegetables > Greenhouse
- For the nuclear test conducted in 1951 see Operation Greenhouse. For the automotive term, see Greenhouse (automotive term).
A greenhouse (also called a glasshouse or hothouse) is a building where plants are cultivated. A greenhouse is built of glass or plastic; it heats up because the sun's incoming electromagnetic radiation warms plants, soil, and other things inside the building. Air warmed by the heat from hot interior surfaces is retained in the building by the roof and wall.
The glass used for a greenhouse works as a selective transmission medium for different spectral frequencies, and its effect is to trap energy within the greenhouse, which heats both the plants and the ground inside it. This warms the air near the ground, and this air is prevented from rising and flowing away. This can be demonstrated by opening a small window near the roof of a greenhouse: the temperature drops considerably. This principle is the basis of the autovent automatic cooling system. Greenhouses thus work by trapping electromagnetic radiation and preventing convection. See solar greenhouse (technical) for a more technical discussion of solar greenhouse workings.
More on [ Greenhouse ]
Vegetables :: Horticulture
Greenhouses :: Outdoor Structures
@lauralovesart She's pro prop 8, would favour economic development over capping greenhouse gas emissions: http://bit.ly/83Irlx :/
missrogue (Tara missrogue Hunt) Mon, 14 Dec 2009 03:11:53 -0000
@lauralovesart She's pro prop 8, would favour economic development over capping greenhouse gas emissions: http://bit.ly/83Irlx :/
RT @EcoEinstein News of the Week: The EPA finds greenhouse gases dangerous to human health http://bit.ly/4pyBuZ #green #health #CO2
EcoReTweeter (GreenPlanet Search) Mon, 14 Dec 2009 03:03:36 -0000
RT @EcoEinstein News of the Week: The EPA finds greenhouse gases dangerous to human health http://bit.ly/4pyBuZ #green #health #CO2
New post on my blog shows how many plants are blooming in the greenhouse in December with the new furnace http://www.growingwithplants.com/
MattMattus (Matt Mattus) Mon, 14 Dec 2009 02:59:14 -0000
New post on my blog shows how many plants are blooming in the greenhouse in December with the new furnace http://www.growingwithplants.com/
negotiators eye the 'forgotten 50%' of greenhouse gases http://bit.ly/6ot0oi
brownthumbgirl (Margie) Mon, 14 Dec 2009 02:57:29 -0000
negotiators eye the 'forgotten 50%' of greenhouse gases http://bit.ly/6ot0oi
Last pictures with Santa coming up next weekend at AshCraft greenhouse. Hope to see you there!
ACAPL (ACAPL) Mon, 14 Dec 2009 02:50:54 -0000
Last pictures with Santa coming up next weekend at AshCraft greenhouse. Hope to see you there!
Who actually produce most greenhouse gases? Energy , airlines and carmakers companies, industrial agriculture. #Cop15 #degrowth
mokkikunta (Luis Alves) Mon, 14 Dec 2009 02:49:35 -0000
Who actually produce most greenhouse gases? Energy , airlines and carmakers companies, industrial agriculture. #Cop15 #degrowth
Greenhouse Food Production - North Carolina State University - Details on tomato production, managing the environment, ethylene, biological control, fertilization and physiological disorders.
Meta Description: [ A NCSU-sponsored webpage on the subject of Greenhouse Food Production ]
Greenhouse Information - University of California - Page contains links to 3 PDF documents, 'Year Round Gardening with a Greenhouse', 'Greenhouse Vegetable Production' and 'Small Plastic Greenhouses'.
Greenhouse Vegetable Information - Articles and forums on crop management, disease control, nutrient film technique, and media systems like soilless culture.
Meta Description: [ Hydroponic greenhouse information. NFT and media system management and nutrition for greenhouse vegetable production ]
Greenhouse Vegetable Production - University of Georgia - Information on site selection, glasshouse design, production methods, fertilization and harvesting. Crops covered include cucumbers, peppers, tomatoes and leafy vegetables.
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