Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Quality Characteristics of Commercial Organic Fertilizers Circulated

국내 유통중인 유기질비료의 품질 특성

  • Kim, Myung-Sook (Soil & Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Seok-Cheol (Soil & Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Yun, Sun-Gang (Soil & Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Park, Seong-Jin (Soil & Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Chang-Hoon (Soil & Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration)
  • 김명숙 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 김석철 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 윤순강 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 박성진 (농촌진흥청 국립농업과학원 토양비료과) ;
  • 이창훈 (농촌진흥청 국립농업과학원 토양비료과)
  • Received : 2017.11.18
  • Accepted : 2018.02.22
  • Published : 2018.03.30
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Abstract

The contents of total nitrogen, total phosphate, and total potash are important factors to determine the application rate of the organic fertilizers to arable lands. The concentrations of nutrient, organic matter, salt, water, heavy metal in mixed oil cakes and mixed organic fertilizers in circulation were investigated with 141 and 179, respectively. The mean levels of total nitrogen, total phosphate, and total potash in organic fertilizers of from 2015 to 2017 were 4.9%, 2.8%, 1.7%, respectively. The average contents of organic matter, salt, and water were 77.0%, 11.5%, and 0.3%, in mixed oil cakes, and 72.3%, 11.7%, 0.5% in mixed organic fertilizer, respectively. The maximum concentrations of Cr, Cu, Ni, and Zn were found to be in accordance with the official standard of commercial fertilizer. In order to promote balanced nutrient absorption of crops, it is necessary to increase the average content of total potash of the organic fertilizers to 3.2%.

유기질비료를 농경지 투입 시 적정한 사용량을 결정하는데 질소전량, 인산전량, 칼리전량 등 비료품질 특성은 매우 중요한 영향인자이다. 유기질비료의 품질특성을 분석하고자 시중에 유통되는 유기질비료 320점을 조사하였다. 유기질비료의 질소전량, 인산전량, 칼리전량 함량은 각각 4.9, 2.8, 1.7%로 나타났다. 유기물, 염분농도, 수분의 평균함량은 혼합유박에서 각각 77.0%, 11.5%, 0.3% 이었고, 혼합유기질비료에서 각각 72.3%, 11.7%, 0.5%으로 비종간에 유사하게 나타났다. 그리고 수은, 크롬, 구리, 니켈, 아연함량은 비료공정규격에서 제시된 기준치 미만으로 검출되어 공정규격에 적합한 것으로 조사되었다. 그리고, 작물의 균형적인 양분의 흡수를 촉진하기 위해서 유기질비료 중에서 비료성분함량이 가장 낮은 총칼리 성분함량을 작물의 비료요구량 비율에 맞도록 조절이 필요하며, 평균적으로 3.2%까지 증가할 필요가 있다고 판단된다.

Keywords

References

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