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Development of Evaluation Indicators of Greenhouse for Tomato Cultivation Using Delphi Survey Method  

Yu, In Ho (Protected Horticulture Research Station, NIHHS, RDA)
Cho, Myeong Whan (Protected Horticulture Research Station, NIHHS, RDA)
Lee, Eung Ho (Protected Horticulture Research Station, NIHHS, RDA)
Ryu, Hee Ryong (Protected Horticulture Research Station, NIHHS, RDA)
Kim, Young Chul (Protected Horticulture Research Station, NIHHS, RDA)
Publication Information
Journal of Bio-Environment Control / v.21, no.4, 2012 , pp. 466-477 More about this Journal
Abstract
This study aimed to develop the comprehensive indicators which can be used for evaluating greenhouse for tomato cultivation. To achieve this aim, the study developed the evaluation indicators composed of evaluation items, grades and criteria by extracting preliminary evaluation items through analyzing the related papers and preceding studies, and conducting Delphi survey on an expert group. During the three surveys, the questions of closed-ended type were given to a panel of 100 experts - professors related to tomato cultivation and facilities, researchers and farmers (practical users). As a result, the finally established evaluation indicators consist of 4 categories and 39 specific evaluation items. The 4 categories are the structural factor of greenhouse, equipment factor of greenhouse, cultivation factor, and infrastructure factor. These factors consist of specific evaluation items of 9, 15, 7 and 8, respectively. In addition, on 39 specific evaluation items, weighted values were calculated and grades and criteria were established by collecting opinions of the experts. The newly developed evaluation indicators through this study will play an important role in developing new greenhouse models, considering things that should be complemented preferentially regarding in-use facilities, and improving the efficiency of projects supported by the government.
Keywords
Delphi method; evaluation indicators; greenhouse; tomato;
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