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Changes of Potential NPK Input by Chemical Fertilizers and Livestock Manure from 1990 to 2011 in Korea
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  • Changes of Potential NPK Input by Chemical Fertilizers and Livestock Manure from 1990 to 2011 in Korea
  • Changes of Potential NPK Input by Chemical Fertilizers and Livestock Manure from 1990 to 2011 in Korea
저자명
Yun. Hong Bae,Lee. Ye Jin,Kim. Myung Sook,Sung. Jwa Kyung,Zhang. Yong Seon,Lee. Sang Min,Kim. Suk Chul,Lee. Yong Bok
간행물명
Korean journal of Soil Science and Fertilizer
권/호정보
2013년|46권 6호|pp.593-598 (6 pages)
발행정보
한국토양비료학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The livestock manure is a good source of major plant nutrients such as nitrogen, phosphorus and potassium and micronutrient that plants require. As aspect of establishment of nutrient management policy in nation scale, the use of livestock manure for agricultural purpose is a key factor for improving national nutrient balance. In this study, we evaluated the tendency of livestock manure production and amount of chemical fertilizer used in Korea from 1990 to 2011. The number of pig and chicken has been increased about two times in 2011 compared with 1990 and therefore livestock manure continually increased with the lapse of year, but cattle and dairy was not changed significantly. The chemical fertilizer consumption of nitrogen, phosphorus and potassium per hectare arable land was decreased by 54.6, 66.0 and 63.2% in 2011 compared with 1990, respectively. In contrast, the potential input of nitrogen, phosphorus and potassium to arable land through livestock manure was increased by 220, 210 and 210% during this period, respectively. Therefore we need a reasonable strategy for nutrient management such as combination of both manure and chemical fertilizers in near future.