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Polytunnels are mainly used in temperate regions in similar ways to glass greenhouses and row covers. Besides the passive solar heating that every polytunnel provides, every variation of auxiliary heating (from hothouse heating through minimal heating to unheated houses) is represented in current practice. The nesting of row covers and low ...
The terms greenhouse, glasshouse, and hothouse are often used interchangeably to refer to buildings used for cultivating plants. The specific term used depends on the material and heating system used in the building. Nowadays, greenhouses are more commonly constructed with a variety of materials, such as wood and polyethylene plastic. [2]
In compost-heated greenhouses, heat and carbon dioxide are generated from a manure-based compost contained in a special chamber attached to one side of the greenhouse. [24] The New Alchemy Institute designed and built an experimental composting greenhouse in 1983 to research opportunities for the production of biothermal energy. [25]
District 70 has installed four new solar greenhouses that students will get to work on and help feed the district.
String Greenhouse (formerly the Production Greenhouse) - This greenhouse focuses on innovative high-density techniques, such as Nutrient film technique. It also shows off "vertical growing techniques", in which plants are grown on specialized trellises which cause the herbaceous plants to approximate the shape and structure of trees.
A vast complex of derelict greenhouses have been brought back into use by a social food enterprise. Food Works, in Sheffield, has been given permission to use the former Norton Nurseries site in ...
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