Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Effect of Ridge Height on Growth Characteristics and Yield of 6 Year Old Panax ginseng in Cultivation of Paddy Soil

논토양에서 두둑높이에 따른 6년생 인삼의 생육 및 수량성

  • Lee, Sung Woo (Ginseng Research Division, Department of Herbal Crop Research, NIHHS, RDA) ;
  • Lee, Seung Ho (Ginseng Research Division, Department of Herbal Crop Research, NIHHS, RDA) ;
  • Jang, In Bok (Ginseng Research Division, Department of Herbal Crop Research, NIHHS, RDA) ;
  • Lan, Jin Mei (Ginseng Research Division, Department of Herbal Crop Research, NIHHS, RDA) ;
  • Park, Kyung Hoon (Ginseng Research Division, Department of Herbal Crop Research, NIHHS, RDA) ;
  • Kim, Ki Hong (Ginseng Research Division, Department of Herbal Crop Research, NIHHS, RDA)
  • 이성우 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 이승호 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 장인복 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • ;
  • 박경훈 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김기홍 (농촌진흥청 국립원예특작과학원 인삼특작부)
  • Received : 2014.07.24
  • Accepted : 2015.08.24
  • Published : 2015.10.30
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Abstract

Background : Ginseng is mainly grown as a break crop in paddy fields after rice has been cultured for approximately 4 - 5 years, because it reduces the negative effects of continuous rice cropping. However, physiological disorders, such as leaf discoloration, occur in ginseng grown in paddy fields with poor drainage and excessive levels of inorganic components. Methods and Results : This study investigated the effect of ridge height on the growth characteristics and yield of 6 year old Panax ginseng. Ridge height was varied by making 20, 30, and 40 cm high ridges in a pooly drained paddy field. Soil moisture content decreased, while electrical conductivity (EC) as the ridge height increased. The $NO_3$, K, Ca, Mg, and Na levels also rose as ridge height increased, but organic matter and $P_2O_4$ levels did not. The leaf discoloration ratio rose as the ridge height increased, and root yield reached a peak when the ridge height was 30 cm. Conclusion : A ridge height of 30 cm in poorly drained paddy field improved ginseng growth by reducing leaf discoloration and increasing root survival, owing to more suitable soil moisture and EC levels.

Keywords

References

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