Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Effect of the Organic Fertilizer Mixed with Various Recycled Coir Substrates on Chinese Cabbage(Brassica Campestris Ssp. Pekinensis) and Lettuce(Lactuca Sativa)

폐코이어를 재활용한 혼합 유기질 비료가 배추와 상추의 생육에 미치는 영향

  • Lee, Gyu-Bin (Department of Horticultural Bioscience, Pusan National University) ;
  • Park, Eun-Ji (Department of Horticultural Bioscience, Pusan National University) ;
  • Park, Young-Hoon (Department of Horticultural Bioscience, Pusan National University) ;
  • Choi, Young-Whan (Department of Horticultural Bioscience, Pusan National University) ;
  • Suh, Jeong-Min (Department of Bioenvironmental Energy, Pusan National University) ;
  • Kang, Jum-Soon (Department of Horticultural Bioscience, Pusan National University)
  • 이규빈 (부산대학교 원예생명과학과) ;
  • 박은지 (부산대학교 원예생명과학과) ;
  • 박영훈 (부산대학교 원예생명과학과) ;
  • 최영환 (부산대학교 원예생명과학과) ;
  • 서정민 (부산대학교 바이오환경에너지학과) ;
  • 강점순 (부산대학교 원예생명과학과)
  • Received : 2015.08.28
  • Accepted : 2015.09.21
  • Published : 2015.09.30
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Abstract

The present study was conducted to find a way to recycle the coir substrate by investigating changes in its physical and chemical properties based on the number of use year. Specific gravity of unused coir substrate was $0.212g/cm^3$, while it was higher for the substrate used for 2 years. Porosity was different depending on the number of use year. The porosity of unused substrate was 51.9%, but it increased to 68.6% after used for 2 years. In general, physical and chemical properties were better in the coir substrate used for 2 years than in unused one. The number of leaves, leaf area, flesh weight and dry weight of oriental cabbage and lettuce were higher in coir substrate used for 2 years than those in unused one. Whereas, no significant difference was observed between the substrates used for one year and 2 years, indicating that the one time-used wast substrate could be recycled for cultivating vegetables. Growth of the vegetables was improved when organic fertilizer composed of complex organics with different mixing ratios was provided to the coir substrate, compared to untreated plot. The optimum mixing ratio of the wast substrate and complex organics was 2:8(v/v) for fertilization using wast coir substrate. Therefore, coir substrate generally wasted after being used for one time was reuseable by supplying organic fertilizer.

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References

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