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토양화학성, 토양미생물상과 인삼뿌리썩음병과의 상관관계

Correlation between Soil Chemical Property, Soil Microbial Community and Root Rot Ratio of 2-Year-Old Ginseng

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  • URLhttps://db.koreascholar.com/Article/Detail/326285
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한국약용작물학회 (The Korean Society of Medicinal Crop Science)
초록

Background : The fungus Cylindrocarpon destructans (Zins) Scholten is the cause of root rot in many ginseng production areas. Root exudate composition and quantity vary in relation to plant nutritional status, but the impact of the differences on rhizosphere microbial communities is not known. Methods and Results : Five kinds of rotation crops, sudan grass soybean peanut sweet potato, perilla were grown for one year in ginseng garden harvested 6-year-old ginseng. The ratio of gram-negative bacteria, fungi, bacteria, total microbial biomass, aerobic/anaerobic microbes were increased by rotational crop cultivation, while the ratio of actinomycetes and the ratio of saturated to unsaturated fatty acids were decreased. The increase in the fungal density or the increase in the proportion of fungi to the bacteria tended to increase the incidence of root rot, but there was no significant difference. The yield of ginseng root showed a highly significant negative correlation with actinomycetes. The correlation between the soil chemical properties and the incidence of root rot was analyzed by cultivating 23 kinds of green manure crops for one year in field where cultivated ginseng continuously. The survival rate of ginseng showed a highly significant positive correlation with soil acidity and a highly significant negative correlation with nitrate nitrogen, and a significant negative correlation with soil salt concentration. Conclusion : Rotation crops improved soil microbial communities, lowered the rate of fungi and increased the proportion of bacteria, the survival rate of ginseng was significantly correlated with soil acidity, nitrate nitrogen and soil salinity.

저자
  • Sung Woo Lee(Ginseng Research Division, Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA) | 이성우 Corresponding author
  • Kyung Hoon Park(Ginseng Research Division, Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA) | 박경훈
  • Seung Ho Lee(Ginseng Research Division, Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA) | 이승호
  • In Bok Jang(Ginseng Research Division, Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA) | 장인복
  • Jin Mei Lan(Ginseng Research Division, Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA)
  • Moon Won Seo(Ginseng Research Division, Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA) | 서문원
  • Dong Yun Hyun(Ginseng Research Division, Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA) | 현동윤