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KMID : 1098420120200030177
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Korean Journal of Medicinal Crop Science
2012 Volume.20 No. 3 p.177 ~ p.183
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Comparison of Growth Characteristics and Ginsenosides Content of 6-Year-Old Ginseng (Panax ginseng C. A. Meyer) by Drainage Class in Paddy Field
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Lee Sung-Woo
Park Jin-Myeon
Kim Geum-Soog
Park Kee-Choon
Jang In-Bok
Lee Seung-Ho
Kang Seung-Won
Cha Sun-Woo
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Abstract
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To develop the practical cultivation for paddy field, we investigated the properties of paddy soil, growth characteristics and ginsenoside content of 6-year-old ginseng, Cheonpung variety between poor drainage class (PDC) and imperfect drainage class (IDC). Groundwater level in PDC showed monthly small changes of 20~30 cm, while IDC showed monthly great changes of 28~71 cm depending on rainfall. Soil moisture content in PDC and IDC was 17.2%, 22.5%, respectively. Air temperature in IDC was lower than $0.3^{\circ}C$ 수식 이미지, while soil temperature was higher than $0.8^{\circ}C$ 수식 이미지 compare to PDC, respectively. Main soil color of PDC was grayish olive, while IDC was brownish olive. PDC showed yellowish mottles only at underground of 20~40 cm, while IDC showed that at underground of 30~90 cm. IDC showed lower pH, EC, potassium, calcium and magnesium content, but higher organic matter, phosphate, and iron content than that of PDC, respectively. All of EC, organic matter, potassium, calcium, and magnesium content were decreased, but iron content was increased at the subsoil layers of PDC. All of EC, organic matter, phosphorus, and potassium content were decreased, but calcium and magnesium content were increased at the subsoil layers of IDC. Root yield in IDC was more increased by 33% than that of PDC. The moisture content and rusty ratio of ginseng root in IDC were lower than that of PDC. Ginsenoside content in IDC was higher than that of PDC because the ratio of lateral and fine root showing relatively high content of ginsenoside was higher in IDC than that of PDC.
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KEYWORD
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Panax ginseng, Poor Drainage Class, Imperfect Drainage Class, Paddy Soil, Root Yield, Ginsenoside
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