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Establishment of the Suitability Class in Ginseng Cultivated Lands  

Hyeon, Geun-Soo (Department of Herbal Crop Research NIHHIS, RDA)
Kim, Seong-Min (College of Industrial Science, Kongju National Univ.)
Song, Kwan-Cheol (National Academy of Agricultural Science, RDA)
Yeon, Byeong-Yeol (Department of Herbal Crop Research NIHHIS, RDA)
Hyun, Dong-Yun (Department of Herbal Crop Research NIHHIS, RDA)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.42, no.6, 2009 , pp. 430-438 More about this Journal
Abstract
An attempt was made to establish the suitability classes of lands for the cultivation of ginseng(Panax ginseng C. A. Meyer). For this study, the relationships between various soil characteristics and ginseng yields were investigated on altogether 450 ginseng fields (150 sites in paddy and 300 sites in upland), across Kangwon, Kyunggi, Chungbug, Chungnam, Jonbug and Kyungbug Provinces, where ginseng is widely cultivated. In the paddy fields, most influential properties of soil on the ginseng yields was found to be the drainage class. Texture of surface soil and available soil depths affected the ginseng yields to some extents. However, the topography, slope, and the gravel content were found not to affect the ginseng yields. In the uplands, the texture of surface soil was most influential and the topography, slope, and occurrence depth of hard-pan were least influential on the performance of the crop. Making use of multiple regression, by SAS, the contribution of soil morphological and physical properties such as, topography, surface soil texture, drainage class, slope, available soil depth, gravel content, and appearance depth of hard-pan, for the suitability of land for ginseng cultivation was analyzed. Based on the results of above analysis, adding up all of the suitability indices, land suitability classes for ginseng cultivation were proposed. On top of this, taking the weather conditions into consideration, suitability of land for ginseng cultivation was established in paddy field and in uplands. As an example, maps showing the distribution of suitable land for ginseng cultivation were drawn, adopting the land suitability classes obtained through current study, soil map, climate map, and GIS information, for Eumsung County, Chungbug Province. Making use of the information on the land suitability for ginseng cultivation obtained from current study, the suitability of lands currently under cultivation of ginseng was investigated. The results indicate that 74.0% of them in paddy field and 88.3% in upland are "highly suitable" and "suitable".
Keywords
Ginseng cultivated lands; Suitability class; Soil morphological properties;
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