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2016 Vol.49, Issue 6 Preview Page
Characterization and Distribution of Clay Minerals in Corn Field Soils in Korea
Jeonghun Jang1
,
Nayun Park1
,
Donghoon Lee1
,
Seyeong Choi2
,
Junhong Park2
,
Man Park1*
,
,
,
,
,
1Kyungpook National University
2GyeongSangbuk-Do Agriculture Research and Extension Service
*Corresponding Author. 
December 2016. pp. 813-818
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Abstract

Distribution of clay minerals separated from clay fraction of corn fields in Korea has been investigated along with their characterization. Crystalline phases of the clay minerals were identified by powder X-ray diffraction (XRD) pattern, and their relative chemical compositions were analyzed by X-ray fluorescence spectrometry (XRF). The soils were found to have pH 6.4, organic matter 37.2 g kg-1, available P2O5 599 mg kg-1, respectively, and exchangeable K, Ca and Mg were 1.2, 7.3 and 1.8 cmolc kg-1, respectively. Major primary minerals consisted mainly of quartz and mica, and kaolinite and chlorite were identified as major secondary clay minerals. For most of soils, mica phase was identified to be muscovite rather than biotite. The average contents of SiO2, Al2O3 and Fe2O3 were 43.7, 23.6 and 8.8%, respectively, although they were different with the locations.

Representative XRD patterns of clay fractions from corn fields.

Keywords
Corn field
Clay mineral
Quartz
Kaolinite
Chlorite

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Information
  • Publisher :Korean Society of Soil Science and Fertilizer
  • Publisher(Ko) :한국토양비료학회
  • Journal Title :Korean Journal of Soil Science and Fertilizer
  • Journal Title(Ko) :한국토양비료학회 학회지
  • Volume : 49
  • No :6
  • Pages :813-818
  • Received Date : 2016-11-22
  • Revised Date : 2016-11-30
  • Accepted Date : 2016-11-30
  • DOI :https://doi.org/10.7745/KJSSF.2016.49.6.813
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