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Evaluation of Livestock Manure Utilization Rates as Agricultural Purpose in Developed OECD Countries by Using Nutrient Balances

OECD 양분수지를 이용한 축산선진국의 농경지 축산분뇨 이용실태 평가

  • Kim, Pil-Joo (Division of Applied Life Science (BK 21 Program), Graduate School, Gyeongsang National University) ;
  • Lee, Yong-Bok (National Academy of Agricultural Science) ;
  • Lee, Youn (National Academy of Agricultural Science) ;
  • Yun, Hong-Bae (National Academy of Agricultural Science) ;
  • Lee, Kyung-Dong (Department of Oriental Medicine Materials, Dongshin University)
  • Published : 2008.12.31

Abstract

The nitrogen (N) and phosphorus (P) balances in Korea during 1985-2006, which calculated according to the surface balance method of the PARCOM guidelines, continually increased with the lapse of year, and then might keep the highest levels with about $250kg\;N\;ha^{-1}$ and $50kg\;P\;ha^{-1}$ in 2006 among OECD countries. National phosphorus balance of the developed OECD countries (Belgium, Denmark, Germany, The Netherlands) in the livestock feeding industries has significantly decreased, due to limit livestock feeding density and nutrient application level by using strong legislation. However, Korean P balance was not apparent decrease, since the number of livestock feeding heads has been increasing, irrespective with the decrease of chemical fertilizer consumption. Manure P portion to the total P input amount of the above four OECD Countries in nutrient balance has continuously inclined to 60-70%. Therefore, the large portion of livestock manure might be used as nutrient source in agricultural side in these countries. In particular, manure P application levels of Belgium and The Netherlands, which have relatively high P balance and manure P portion to total P input dose, was estimated to be $31-33\;kg\;p\;ha^{-1}$ in 2004, and it was similar level with that of Korea in 2006. The manure P application levels for agricultural purpose has continuously decreased in these two OECD countries. In contrast, our manure P application rate continuously increased, and therefore we need the strong political countermeasure to control livestock feeding density at the resonable level.

Keywords

OECD nutrient balance;surface balance;livestock manure;manure application rate

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