Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Comparison of Soil Chemical Properties and Heavy Metal Contents in Organic and Conventional Paddy of Yongin and Anseong

용인과 안성 지역의 유기논 및 관행논에서 토양 화학 특성 및 중금속 함량 비교

  • Gu, Bon-Wun (Department of Bioresources and Rural systems Engineering, Hankyong National University) ;
  • Lee, Tae-Gu (Department of Bioresources and Rural systems Engineering, Hankyong National University) ;
  • Kang, Ku (Institute of Agricultural Environmental Science, Hankyong National University) ;
  • Hong, Seong-Gu (Department of Bioresources and Rural systems Engineering, Hankyong National University) ;
  • Hong, Seung-Gil (National Academy of Agricultural Science, Rural Development Administration) ;
  • Jang, Tae-Il (Department of Rural Construction Engineering, Chonbuk National University) ;
  • Kim, Jin-Ho (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Park, Seong-Jik (Department of Bioresources and Rural systems Engineering, Hankyong National University)
  • Received : 2016.09.26
  • Accepted : 2017.02.13
  • Published : 2017.05.31
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Abstract

The aim of this study is to investigate the chemical properties and heavy metal concentration of soils in conventional and organic paddy. We sampled and analyzed topsoil (0~15 cm) and subsoil (15~30 cm) of conventional and organic paddy fields in Yongin and Anseong, South Korea. The statistical significance between groups was determined by Duncan's multiple range test and correlation between soil properties was also analyzed. The results show that organic matter (OM) and T-N of conventional paddy soil were higher than those of organic paddy soil. However, higher T-P concentration was observed in organic paddy soil than conventional paddy soil. As, Pb, and Zn concentration in organic paddy soil were statistically lower than those in conventional paddy soil. The couple of water content (WC) & As, OM & T-N, T-P & $P_2O_5$, T-P & Zn, $P_2O_5$ & Zn, and Cr & Ni had a good positive correlation but the couple of WC & T-P, WC & Zn, T-P & As, and As & Zn had a strong negative correlation. It can be concluded that organic farming is beneficial to soil environment by reducing the amounts of organic matter, T-N, As, Pb, and Zn concentration in paddy soil when compared to conventional farming.

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References

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