약용작물(藥用作物) 재배지(栽培地) 토양(土壤)의 화학성분(化學成分) 함량(含量)

Chemical Properties of Medicinal Plant Cultivated Soils

  • Jung, Goo-Bok (National Agricultural Science and Technology Institute, RDA) ;
  • Kim, Bok-Young (National Agricultural Science and Technology Institute, RDA) ;
  • Kim, Kyu-Sik (National Agricultural Science and Technology Institute, RDA) ;
  • Lee, Jong-Sik (National Agricultural Science and Technology Institute, RDA) ;
  • Ryu, In-Soo (Dept. of International Agriculture Development, Dankook University)
  • 발행 : 1996.03.30

초록

우리나라에서 재배되고 있는 약용작물인 당귀, 황기, 길경, 작약, 더덕, 천궁, 시호 등 약용작물 재배지 토양 254점을 '93년도에 채취하여 토양의 화학성을 분석 검토한 결과는 다음과 같다 1. 약초재배지 토양의 화학적성 질은 평균치로 pH 5.6, O.M 3.0%, 유효태 $P_2O_5$ 405mg/kg. 치환성 K $0.67cmol^+/kg$, 치환성 Ca $6.3cmol^+/kg$, 치환성 mg $1.6cmol^+/kg$이 었다. 2. 조사토양 전체의 pH는 5.1-6.0범위에 많이 분포하였으며 특히 당귀. 길경, 더덕 재배지 토양은 pH 6.0이하가 83-91%나 되어 산성토양으로 나타났다. 3. 유기물의 분포비율은 2.0-4.0% 수준. 유효태 $P_2O_5$,의 분포비율은 500mg/kg이상의 수준에서 많았고 토양의 유기물 및 유효태 $P_2O_5$함량은 길경재배지에서 낮았다. 4. 치환성 양이온의 함량수준별 분포비율은 Ex.K가 $0.2-0.8cmol^+/kg$수준에서 고른 분포를 보인 반면 Ex.Ca와 Ex.MB의 경우는 각각 $2.1-4.0cmol^+/kg$, $0.50-2.00cmol^+/kg$수준에서 높았고. 작물별 토양의 양이온함량은 황기재배지에서 높았고 길경, 더덕재배지에서 낮았다.

This survey was conducted to investigate the chemical properties of soils cultivated medicinal plants. The soils were collected at 254 sites(Angelica gigas : 81, Astragalus membranceus : 38, Platycodn glandiflorum : 36, Paeonia albiflora : 34, Codonopsis lanoceolata : 32, Ligusticum chuanxiong : 17. Bupleurum falcatum : 16, respectively) throughout the country by 0-15cm depth. The chemical properties of soils were pH 5.6, O.M 3.0%. Av.$P_2O_5$ : 405 mg/kg, Ex.K : $0.67cmol^+/kg$, Ex.Ca : $6.3cmol^+/kg$, Ex.mg : $1.6cmol^+/kg$. The percentage distribution of pH on the basis of soil sample numbers were much more at the 5.1-6.0 range than any other ranges, especially those of below pH 6.0 were 83-91% for Angelica gigas, Platycodn glandiflorum and Codonopsis lanoceolata. The distribution of OM and Av.$P_2O_5$ in soils were much at the 2.1-4.0% and above 500mg/kg ranges, respectively. And the content of those in soils cultivated with Platycodn glandiflorum were lower than any other medicinal plants. The distribution of exchangeable cations in soils were much at the 0.2-0.8, 2.1-4.0 and $0.5-2.0cmol^+/kg$ of Ex.K. Ca and mg. respectively, and the contents were higher in soils cultivated Astragalus membranceus. and lower in soils cultivated Platycodn glandiflorum and Codonopsis lanoceolata than any other samples.

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