Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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The Nitrogen, Phosphate, and Potassium Contents in Organic Fertilizer

유기질비료의 질소, 인산, 칼륨 함량 분포 특성

  • 윤홍배 (농촌진흥청 국립농업과학원) ;
  • 권덕인 (국립서울대학교) ;
  • 이종식 (농촌진흥청 국립농업과학원) ;
  • 이예진 (농촌진흥청 국립농업과학원) ;
  • 김명숙 (농촌진흥청 국립농업과학원) ;
  • 송요성 (농촌진흥청 국립농업과학원) ;
  • 이용복 (국립경상대학교 생명과학연구원)
  • Received : 2011.05.30
  • Accepted : 2011.06.21
  • Published : 2011.06.30
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Abstract

The nitrogen, phosphorus, and potassium contents are the key factors to determine the quality of organic fertilizers and right amount of application for agricultural uses. The major nutrient contents in raw materials used for making organic fertilizers and products were evaluated in this study. Among the raw materials that were investigated, soybean cake gave the highest total N content at $76g\;kg^{-1}$, followed by perilla cake ($70g\;kg^{-1}$), rape seed oil cake ($66g\;kg^{-1}$), cotton seed cake ($54g\;kg^{-1}$), and rice bran ($22g\;kg^{-1}$). We investigated 43 organic fertilizers and our results showed widely varied concentrations of major nutrients : total N at $30.5-139g\;kg^{-1}$, total $P_2O_5$ at $2.3-96.3g\;kg^{-1}$, and total $K_2O$ at $0.1-29.3g\;kg^{-1}$. Our study would like to emphasize the importance of nutrient content labeling in packed organic fertilizers to be able to know its efficiency and for determining the right amount for application.

유기질비료의 질소, 인산 및 칼리의 주성함량은 유기질비료의 질을 결정하는 요소 일뿐만 아니라 작물 재배시 시비량결정에 매우 중요하다. 따라서 본 연구에는 국내 시판 유기질비료 및 원료를 수거 조사하여 주성분 함량의 분포특성을 파악하여 시비량 결정을 위한 기초 자료로 활용코자하였다. 식물성 유기질비료의 원료 중 전 질소함량은 대두박이 $76g\;kg^{-1}$으로 가장 높았으며, 깻묵은 $70g\;kg^{-1}$, 유채박 $66g\;kg^{-1}$, 면실박 $54g\;kg^{-1}$, 미강박 $22g\;kg^{-1}$ 순이었다. 시판 유기질비료 43점의 주성분을 분석한 결과 전 질소함량은 $30.5-139.0g\;kg^{-1}$, 전 인산 $2.3-96.3g\;kg^{-1}$, 전 칼리는 $0.1-29.3g\;kg^{-1}$을 나타내었다.

Keywords

References

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