Albright, Louis D. Department of Agricultural and Biological Engineering, Cornell University, Ithaca, New York.
Last reviewed:January 2020
Show previous versions
- Environment control
- Carbon dioxide
- Mechanization and automation
- Nutrition management and hydroponics
- Related Primary Literature
- Additional Reading
A glass- or plastic-enclosed structure that is used to grow plants under protected conditions. Greenhouses (also known as glasshouses) are transparent, enclosed, climate-controlled structures (Fig. 1) in which young, tender, or out-of-season plants are cultivated and protected. These structures are relatively permanent structures. They are made of glass or plastic with aluminum or steel frames, and they are equipped with several means of environmental modification. In addition to greenhouses, there are other similar structures that are used to grow plants. These structures include low and high tunnels. Low tunnels, also called row covers, primarily advance the growing season for outdoor crops (for example, tomatoes, melons, strawberries, and sweet corn). Low tunnels are created using long, narrow strips of transparent plastic material (often polyethylene) buried in the ground along their outer edges to cover one or several adjacent rows of plants grown directly in the soil. French cloches and traditional hot caps are variations of this technology. High tunnels are large versions of low tunnels, raised sufficiently above the ground so that people can walk within them. See also: Agricultural science (plant); Floriculture; Plant; Plant growth; Plant physiology; Plant-water relations
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 10,000 highly qualified scientists and 46 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information