Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Use of NIR Soil Analyzer for Measuring Chemical Properties of Field Soil

근적외 토앙분석기를 이용한 토양의 이화학적 성질분석

  • Ryu, Kwan-Shig (Department of Agricultural Chemistry, Taegu University) ;
  • Cho, Rae-Kwang (Department of Agricultural Chemistry, Kyungpook National University) ;
  • Park, Woo-Churl (Department of Agricultural Chemistry, Kyungpook National University) ;
  • Kim, Bok-Jin (Department of Agronomy, Youngnam University)
  • Published : 2001.08.30
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Abstract

The overall objective of this research was to show a NIR soil analyzer assessing soil fertility by measuring soil properties rapidly. A total of 140 soil samples were used to obtain calibrations and validation estimating soil properties. The soil samples were ground to pass 0.2mm sieve openings. Partial least square regression analysis was used to develop a calibration for soil analysis. The results indicated that NIR soil analyzer could be used as a routine method for quantitatively determining pH, OM, total nitrogen, CEC, extractable Ca, Mg, K, available $SiO_2$ and soil moisture simultaneously within one minute. Therefore, the NIR soil analyzer may be suitable for quick estimation of soil fertility estimation in fertilizer assessments.

근적외 이용 토양분석기에 의한 토양수분, 유기물, 전질소 측정과 그 외 토양의 여러 가지 이화학 성분에 대한 측정결과를 검토하였다. 토양시료를 몰탈로 갈아서 토양입자를 0.2mm의 체를 통과시킨 140점의 토양시료를 85점은 근적외 토양분석기의 표준곡선을 작성하고 나머지 55점의 토양시료는 표준곡선을 이용하여 추정한 토양의 이화학성 중에서 토양수분, 토양 pH, 유기물, 전질소 CEC, 치환성 Ca, Mg, K 및 유효규산함량은 근적외 토양분석기로 동시에 추정할 수 있어 시비처방을 위한 토양의 비옥도를 판정하는데 유용하게 이용할 수 있을것으로 생각된다.

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