Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Influence on Platycodon grandiflorum Absorption of Nitrogen and Phosphorous Acid and Growth during Seedling Stage by Liquid Fertilizers Treatment

도라지 유묘기 액비처리가 질소와 인산의 식물체 흡수 및 생육에 미치는 영향

  • Lee, Cheol-Ho (Department of Agronomy & Medicinal Plant Resources, Gyeongnam National University of Science and Technology) ;
  • Lee, Shin-Woo (Department of Agronomy & Medicinal Plant Resources, Gyeongnam National University of Science and Technology) ;
  • Ahn, Mi-Jeong (College of Pharmacy and Research Institute of Life Sciences, Gyeongsang National University) ;
  • Cho, Kwang-Bok (Department of Plant Resource, Graduate School, Gyeongnam National University of Science and Technology) ;
  • Lee, Hyub (Department of Agronomy & Medicinal Plant Resources, Gyeongnam National University of Science and Technology)
  • 이철호 (경남과학기술대학교 생명자원과학대학 농학.한약자원학부) ;
  • 이신우 (경남과학기술대학교 생명자원과학대학 농학.한약자원학부) ;
  • 안미정 (경상대학교 약학대학) ;
  • 조광복 (경남과학기술대학교 대학원 식물자원학과) ;
  • 이협 (경남과학기술대학교 생명자원과학대학 농학.한약자원학부)
  • Received : 2011.07.06
  • Accepted : 2011.08.09
  • Published : 2011.08.30
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Abstract

The roots of Platycodon grandiflorum has been widely used as a crude drug or a food stuff. Unfortunately, the output and the quality is not regular and highly dependent on the cultivation area and cultivation method. Therefore, seedling cultivation study of this plant under structure with various fertilizer supply was performed. As a result, significant big difference between ammonia nitrogen and nitrate nitrogen content was shown in the root at seedling stage while the difference was not significant in the aerial parts. Fresh weight of the root (7.73 g plant$^{-1}$) was higher in the group treated with three major nutrients (N, P and K) than in those treated with three major nutrients and calcium or magnesium or both calcium and magnesium, and non-treated group (2.69 g plant$^{-1}$). Total nitrogen content was recognized to be significantly correlated with root weight, plant height, number of leaves and weight of aerial parts. Ammonium nitrogen content was more correlated the growth of P. grandiflorum than nitrate nitrogen. For phosphoric acid, significant correlation was also shown with the four growth factors.

Keywords

References

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