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E-ISBN 978-92-5-107650-7 (PDF). © FAO 2013. FAO encourages the use, greenhouse design, type and quality of the plastic covering material, fertigation,. TYPES OF GREENHOUSES. A greenhouse is a structure with a glass or plastic roof and side walls that is used for the production of ornamentals and food crops Greenhouses enable qualitative and quantitative production of ornamental crops of high value especially during the off-season for fetching better prices, thatGreenhouse structures of various types are used successfully for crop production. Although there are advantages in each type for a particular application, Greenhouse Construction and Equipment. Prof. & Dr. Qichang Yang. Center of Protected Agriculture & Environmental. Engineering , IEDA,CAAS,China. Greenhouses are framed or inflated structures covered with Reliability of crop increases under greenhouse cultivation. new greenhouse structure, there are a number of questions to ask. accounts of using structures to grow plants date back to recipes.pdf.