Greenhouse

Greenhouse
User:Владимир Иванов · Public domain · source
Name	Greenhouse
Type	Horticultural structure

Greenhouse

A greenhouse is a controlled-environment structure used for cultivating plants, integrating architecture, horticulture, and engineering to modify light, temperature, humidity, and atmospheric composition. Historically deriving from early glasshouses and orangeries, modern greenhouses combine glazing, structural framing, and environmental systems for production of ornamentals, vegetables, and research specimens. They are central to practices in urban agriculture, floriculture, and botanical research across institutions such as Royal Botanic Gardens, Kew, United States Department of Agriculture, and commercial firms like Sakata Seed Corporation.

History

The greenhouse concept evolved from medieval orangeries used by European nobility and the 17th-century developments in glass production associated with workshops in Venice, Ghent, and Lille. The 19th century saw expansion through botanical expeditions by figures like Joseph Banks and infrastructure projects influenced by engineers involved with the Crystal Palace and the Great Exhibition. Colonial plant transfers connected institutions such as Kew Gardens, Jardin des Plantes, and the Royal Botanic Garden Edinburgh with acclimatization efforts in Cape Town and Calcutta. Agricultural research stations affiliated with Iowa State University and Wageningen University & Research later formalized greenhouse crop trials. Twentieth-century advances in polymer glazing and climate control were driven by collaborations among companies like Saint-Gobain and research programs at Cold Spring Harbor Laboratory and John Innes Centre.

Design and Construction

Greenhouse design balances glazing, structural framing, and site orientation, drawing on precedents from architects linked to projects at Kew Gardens and engineers from the London County Council. Materials include glass from manufacturers like Pilkington and plastics developed by firms such as DuPont and BASF. Structural systems reference standards used by construction companies like Skanska and Bechtel for large-span roofs and modular greenhouses by firms comparable to Richel Group. Foundations, drainage, and ventilation integrate civil engineering principles applied in municipal projects in Amsterdam and Singapore. Design details often follow codes influenced by institutions such as American Society of Civil Engineers and testing bodies like Underwriters Laboratories.

Types and Uses

Applications range from small-scale hobby houses seen in community projects sponsored by Royal Horticultural Society to commercial glasshouses operated by corporations like Driscoll's and research greenhouses at Harvard University and University of California, Davis. Specialized forms include hydroponic greenhouses associated with Learnings at Wageningen, botanical conservatories in cities such as Montreal and Singapore Botanic Gardens, and vertical greenhouse systems inspired by designs implemented in Tokyo and New York City. Uses encompass production of cut flowers for markets linked to Aalsmeer, propagation of fruit crops by firms like Dole Food Company, and conservation work coordinated with museums such as the Smithsonian Institution.

Environmental Control and Technology

Modern environmental control systems integrate sensors, controllers, and actuators supplied by companies like Siemens, Schneider Electric, and Honeywell. Climate regulation strategies draw on studies from NASA and agricultural research at University of Arizona and Cornell University concerning light spectra, CO2 enrichment, and evapotranspiration. Technologies include LED lighting developed by firms such as Philips and automated shading systems influenced by industrial automation research at MIT. Monitoring and data analytics utilize platforms and standards promoted by National Institute of Standards and Technology and precision agriculture initiatives supported by Bill & Melinda Gates Foundation.

Plant Production and Management

Crop scheduling, substrate selection, and nutrient management reference protocols used by extension services at University of Florida and Penn State University. Production systems include hydroponics popularized by experiments at NASA Ames Research Center, substrate culture used by nurseries associated with Monrovia Growers, and grafting techniques developed in breeding programs at World Vegetable Center. Postharvest handling links to supply chains managed by logistics firms such as Maersk and retailers like Walmart and Tesco. Breeding and cultivar selection often come from companies such as Syngenta and research at institutions like John Innes Centre.

Energy Efficiency and Sustainability

Energy conservation strategies draw on work by organizations like International Energy Agency and projects funded by the European Commission focusing on thermal storage, heat recovery, and combined heat and power systems implemented in facilities in The Netherlands and Denmark. Renewable integrations include solar arrays by firms like First Solar and biomass boilers used in Scandinavian horticulture. Life-cycle analyses by researchers at ETH Zurich and Imperial College London inform material selection and embodied-energy reduction. Certification and standards are influenced by bodies such as ISO and sustainability programs run by LEED and regional initiatives in California.

Pest, Disease, and Biosecurity Management

Integrated pest management in greenhouses incorporates biological controls from suppliers like Koppert and entomology research at Rothamsted Research. Disease management follows phytosanitary standards of organizations such as the Food and Agriculture Organization and World Organisation for Animal Health where applicable for plant pathogens. Quarantine protocols coordinate with customs authorities in United Kingdom, United States, and Australia, while diagnostic methods derive from laboratories at Centers for Disease Control and Prevention and plant pathology departments at University of California, Davis. Preventive architecture and airflow design draw on studies published by American Phytopathological Society and applied in production facilities worldwide.

Category:Horticulture