도라지 재배지역 및 재배년수에 따른 토양의 화학적 특성변화

Change of Soil Chemical Properties according to Cultivation Area and Cultural Year for Platycodon grandiflorum

  • 이철호 (진주산업대학교 생명자원과학대학 농학.한약자원학부) ;
  • 이신우 (진주산업대학교 생명자원과학대학 농학.한약자원학부) ;
  • 이협 (진주산업대학교 생명자원과학대학 농학.한약자원학부)
  • Lee, Cheol-Ho (Department of Agronomy & Medicinal Plant Resources, College of Life Science & Natural Resources, Jinju National University) ;
  • Lee, Shin-Woo (Department of Agronomy & Medicinal Plant Resources, College of Life Science & Natural Resources, Jinju National University) ;
  • Lee, Hyub (Department of Agronomy & Medicinal Plant Resources, College of Life Science & Natural Resources, Jinju National University)
  • 투고 : 2010.07.06
  • 심사 : 2010.08.22
  • 발행 : 2010.08.30

초록

The study result survey platycodon cultivation regions of Jinju(2), Sacheon(4), Hapcheon(3), Haman(3), and Sancheong(3) of Gyongnam regarding chemical properties of soil, inorganic nitrogen phosphorus by type of composition is as follows: pH and EC value were highest where platycodon cultivated for under 3 years in soils. Content of O.M equal to or less than 25 mg $kg^{-1}$, the average value for platycodoncultivation in korea. Content of exchangeable calcium in soils were 12, 14 $cmol^+kg^{-1}$ in Hapcheon and Haman regions where platycodon was cultivated for two years which is 2~3 time higher level compared with the average upland soil of korea. Water solution boron confirmed approximated level of 3.0 mg $kg^{-1}$ in all survey regions, and the finding is about five times higher than average upland soil of korea which is 0.5 mg $kg^{-1}$. In the case of nitrogen, a significant difference was found depending on cultivation regions and continuous culture. Content of nitrogen in soils were difference according to cultivation area and continuous culture. The composition ratio according to the type of inorganic phosphorus showed the highest in order of Al-P > Ca-P > Fe-P > Saloid-P in all survey regions except for Hapcheon (five, seven years cultivated soils). The correlation showed high significance between available phosphate and inorganic phosphorus.

키워드

참고문헌

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