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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. Greenhouse in St. ...
Greenhouse in St. ...
State capitol building in Saint Paul Saint Paul is the capital and second-largest city of the state of Minnesota in the United States of America. ...
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. Greenhouses thus work by trapping electromagnetic radiation and preventing convection. See Solar greenhouse (technical) for a more technical discussion of solar greenhouse workings. Convection is the transfer of heat by the motion of or within a fluid. ...
Greenhouses are often used for growing flowers, vegetables, fruits, and tobacco plants. Bumblebees are the pollinators of choice for most greenhouse pollination, although other types of bees have been used, as well as artificial pollination. The Latin words hortus (garden plant) and cultura (culture) together form horticulture, classically defined as the culture or growing of garden plants. ...
Vegetables on a market Vegetable is a nutritional and culinary term denoting any part of a plant that is commonly consumed by humans as food, but is not regarded as a culinary fruit, nut, herb, spice, or grain. ...
In botany, a fruit is the ripened ovary, together with its seeds, of a flowering plant. ...
Species N. alata N. bigelovil N. debneyi N. excelsior N. exigua N. glauca N. glutinosa N. kawakamii N. knightiana N. longiflora N. sylvestris N. tabacum Ref: ITIS 30562 as of 2002-08-28 Tobacco () is a broad-leafed plant of the nightshade family, indigenous to North and South America, whose...
Species see text A bumblebee in flight The bumblebee is a flying insect of the genus Bombus in the family Apidae. ...
A pollinator is the agent that moves pollen from the male anthers of a flower to the female stigma of a flower to accomplish fertilization or syngamy of the female gamete in the ovule of the flower by the male gamete from the pollen grain. ...
Pollination is an important step in the reproduction of seed plants: the transfer of pollen grains (male gametes) to the plant carpel, the structure that contains the ovule (female gamete). ...
Families Andrenidae Anthophoridae Apidae Colletidae Ctenoplectridae Halictidae Heterogynaidae Megachilidae Melittidae Oxaeidae Sphecidae Stenotritidae bee or bees, see bee (disambiguation). ...
Mowing young tobacco in greenhouse of half million plants (Hemingway, South Carolina) Besides tobacco, many vegetables and flowers are grown in greenhouses in late winter and early spring, then transplanted outside as the weather warms. Started plants are usually available for gardeners in farmers markets at transplanting time. Mowing young tobacco plants in greenhouse Image taken by me, released under GFDL Pollinator 05:35, 21 Mar 2004 (UTC) ( ) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Mowing young tobacco plants in greenhouse Image taken by me, released under GFDL Pollinator 05:35, 21 Mar 2004 (UTC) ( ) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Hemingway is a town located in Williamsburg County, South Carolina. ...
A gardener is any person involved in the growing and maintenance of plants, notably in a garden. ...
A farmers market near the Potala Palace in Lhasa, Tibet. ...
The closed environment of a greenhouse has its own unique requirements, compared with outdoor production. Pests and diseases, and extremes of heat and humidity, have to be controlled, and irrigation is necessary to provide water. Significant inputs of heat and light may be required, particularly with winter production of warm-weather vegetables. Special greenhouse varieties of certain crops, like tomatoes, are generally used for commercial production. The primary meaning of pest is an animal which has characteristics which people regard as being injurious or harmful. ...
A disease is any abnormal condition of the body or mind that causes discomfort, dysfunction, or distress to the person affected or those in contact with the person. ...
Irrigating cotton fields Irrigation in the Heart of the Sahara Irrigation (in agriculture) is the replacement or supplementation of rainfall with water from another source in order to grow crops. ...
Greenhouses are increasingly important in the food supply of high latitude countries. The largest greenhouse complex in the world is at Leamington, Ontario (close to Canada's most southern spot) where about 200 acres (0.8 km²) of tomatoes are entirely grown under glass. Map of Essex County with Leamington in red Leamington is a municipality in Essex County, Ontario and has a population of about 30,000. ...
Canada is a sovereign state in northern North America, the northern-most country in the world, and the second largest in total area. ...
Tomato - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ...
Greenhouses protect crops from too much heat or cold, shields plants from dust storms and blizzards, and helps to keep out pests. Light and temperature control allows greenhouses to turn unarable land into arable land. Greenhouses can feed starving nations where crops can't survive in the harsh deserts and arctic wastes. Hydroponics can be used in greenhouses as well to make the most use of the interior space. In geography, arable land is a form of agricultural land use, meaning land that can be (and is) used for growing crops. ...
Hydroponics is the growing of plants without soil. ...
See also
Categories: Buildings and structures stubs ...
External links - North Carolina State University Greenhouse Food Production website (http://www.ces.ncsu.edu/depts/hort/greenhouse_veg)
- Organic Greenhouse Tomato Production (http://attra.ncat.org/attra-pub/ghtomato.html)
- Greenhouse Supplies (http://greenhousestuff.com)
- Greenhouse Articles and Resources (http://primegreenhouse.com/newsarticles)
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