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== See also ==
== See also ==
* [[Construction of an Affordable Greenhouse]]
*[[Plant nursing]]: nursing plants in a greenhouse
* [[Humboldt greenhouse gallery]]
*[[Construction of an Affordable Greenhouse]]
* [[The Food and Heat Producing Solar Greenhouse]]
*[[Humboldt greenhouse gallery]]
*[[The Food and Heat Producing Solar Greenhouse]]


== Interwiki links ==
== Interwiki links ==

Revision as of 16:20, 2 November 2012

Greenhouse redirects here. For information on the greenhouse effect, see Global warming.
Construction of an Affordable Greenhouse

Greenhouses capture solar energy and use it to create a warm environment for food production.

They can also be used (using an appropriate design) to provide hot water.

Greenhouses, if properly protected with screens and without gaps for pests to enter, can offer advantages in pest control. However, they can also offer favorable conditions for pests to flourish, if pests are allowed to establish themselves. Biological pest control may be a suitable solution.

Waste heat from industry can be used to heat greenhouses: Greenhouse waste heat exchange.

They may be built from many materials, including:

...although of course there must be a clear material (usually glass or clear plastic sheets) to allow in light and the sun's infrared rays.

Which plants are grown indoors/outdoors ?

Annual herbs such as dill, caraway, basil, borage, chamomile, garden marjoram, chervil, cumin, parsley, anise, coriander, and annual bean herb are sown. This is done in spring from late March, on site, in the soil. Also, frost-sensitive annual herbs such as basil are sown in March-April, under glass. Seeds that germinate slowly (parsley) too are better sown under glass.

The cutting of some plants (e.g. tarragon) is best done in a greenhouse because the cuttings are then in a growth-promoting climate and will dry-out less.

Herbs are not only supplied and used in their natural growing period. The cultivation of herbs can also continue during the winter months. In cold and temperate climates, the cultivation during the winter months is completely done in a greenhouse.

In a mild climate, (e.g. Sydney or Perth in Australia, or the southern United States) many herbs can survive over winter. Some annuals, notably basil, may even be made to survive another year if cut back very hard (removing almost the entire bush) to prevent going to seed. This might need to be performed multiple times, especially removing any buds and flowers than manage to form.

According to the location of cultivation, we can make the following division:

A. Outdoor

  • In full soil
  • In container

B. Sheltered

  • In full soil
  • In container
  • In pot or press pot
  • In trays or multi plates

See also

Interwiki links

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