Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Assessment of Agricultural Nutrient Surplus in Pig-concentrated Region in Korea

  • Lee, Yejin (Soil and Fertilizer division, National Academy of Agricultural Science, RDA) ;
  • Yun, Hong-Bae (Soil and Fertilizer division, National Academy of Agricultural Science, RDA)
  • Received : 2013.10.24
  • Accepted : 2013.11.18
  • Published : 2013.12.31
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Abstract

Assessment of nutrient balance in region unit is important to make a decision on nutrient management in agriculture. In this study, the nutrient demand in arable land and nutrient supply from livestock manure and chemical fertilizer were estimated from pig-concentrated areas. Three regions (H, I and J) were selected on the basis of pig numbers per unit area of arable land. In H and I regions, nitrogen amount from pig manure occupied about 50% of total livestock manure. Nutrient supply was three times higher compared to the nutrient demand in each of 3 regions. Soil available phosphate of higher pig-populated area in regional unit was higher than less populated livestock area. Therefore, livestock manure-derived regional management and monitoring of soil nutrient contents is necessary for the minimization and improvement of nutrient surplus.

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References

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