Greenhouse Design and Management

Hee-Ryong Ryu, In-Ho Yu, Myeong-Whan Cho, Doo-Gyung Moon and Ill-Hwan Cho

Protected Horticulture Research Station, NIHHS, RDA, Busan 618-800, Korea

baradori@rda.go.kr

Abstract - To supply horticulture products to farmers and customers efficiently at their desired time, many countries

around the world use greenhouses, which minimizes the effects of the natural environment. The major users of greenhouses are in Europe and East Asia, with greenhouses covering 2,850,000 ha of East Asia, 230,000 ha of Europe, 120,000 ha of Africa and the Middle East, and 40,000 ha of the America. In the Netherlands, glasshouses are mainly used, whereas film-plastic clad greenhouses (FPGs) are more common in most European countries and East Asian countries, including Korea, China, and Japan.

Greenhouses are divided into FPGs and glasshouses by covering materials, and these also can be classified by structural style into freestanding type and gutter-connected type depending on whether a greenhouse bay is connected to another structure. Meanwhile, each country has different greenhouse design standards and rules for building greenhouses.

The main members of the freestanding type are rafter and purlin, while the gutter-connected type includes an additional gutter and column.

To promote the time and cost efficiency of the assembly process, each cross-linking connections of space arch type grid that consists of rafter and purlin is linked with steel-wire buckles, and each end of the rafters was driven directly to the ground to support the FPG structure.

The 5.4 m of eaves height for the energy saving greenhouse was proposed by considering the productivity of

paprika, economical efficiency of facility and structural safety. Thus the proposed greenhouse has a design strength that can withstand a 40 m/sec of wind force and a 55 cm of snow depth. It showed that the proposed high-rise energy saving greenhouse has advantages in increasing the design strength and productivity and in energy saving, compared to the existing greenhouses for paprika culture.

Key words: cultivation, horticulture, protected, vegetable

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