Articles
A GREENHOUSE DESIGN FOR A COOL SUBTROPICAL CLIMATE WITH MILD WINTERS BASED ON MICROCLIMATIC MEASUREMENTS OF PROTECTED ENVIRONMENTS
Article number
281_8
Pages
83 – 94
Language
Abstract
In summer a tunnel greenhouse produced high temperatures which were detrimental to growth and production of tomatoes.
A 40% shadehouse reduced incoming radiation and temperatures were cooler, but yields were low.
In a 15% shade hailhouse with high radiant flux density and milder temperatures in summer yields were highest but in winter yields were poor.
A sheltered outside environment which was more exposed to the elements gave poor results especially in winter.
Protection from the elements is necessary for good production and an "appropriate technology" greenhouse was designed, based on measurements of microclimate of these four protected environments and on available literature.
A 40% shadehouse reduced incoming radiation and temperatures were cooler, but yields were low.
In a 15% shade hailhouse with high radiant flux density and milder temperatures in summer yields were highest but in winter yields were poor.
A sheltered outside environment which was more exposed to the elements gave poor results especially in winter.
Protection from the elements is necessary for good production and an "appropriate technology" greenhouse was designed, based on measurements of microclimate of these four protected environments and on available literature.
Authors
P.J.W. Mills, I.E. Smith, G. Marais
Keywords
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