Journal of the Korean Wood Science and Technology

  • 제43권3호
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  • Pages.400-409
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  • 2015
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  • 1017-0715(pISSN)
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  • 2233-7180(eISSN)
한국목재공학회 (The Korean Society of Wood Science & Technology)
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양액재배용 목재고형배지의 이화학적 특성과 작물생육 특성

Physiochemical Properties and Plant Growth of The Hydroponic Substrate Using Waste Wood Chip

  • 권구중 (동국대학교 바이오시스템 대학) ;
  • 양지욱 (동국대학교 바이오시스템 대학) ;
  • 박효섭 (동국대학교 바이오시스템 대학) ;
  • 조준형 (동국대학교 바이오시스템 대학) ;
  • 김대영 (동국대학교 바이오시스템 대학)
  • Kwon, Gu-Joong (College of Life Science & Biotechnology, Dongguk University) ;
  • Yang, Ji-Wook (College of Life Science & Biotechnology, Dongguk University) ;
  • Park, Hyo-Sub (College of Life Science & Biotechnology, Dongguk University) ;
  • Cho, Joon-Hyeong (College of Life Science & Biotechnology, Dongguk University) ;
  • Kim, Dae-Young (College of Life Science & Biotechnology, Dongguk University)
  • 투고 : 2014.09.19
  • 심사 : 2015.01.20
  • 발행 : 2015.05.25
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초록

본 연구는 폐목재칩, 라디에타파인칩 그리고 폐목재칩을 매트타입으로 제조한 것을 이용한 양액재배용 고형배지에 대한 특성과 엽채류를 이용한 작물생육발달특성을 검토하였다. 가비중은 폐목재칩이 $0.20g/cm^2$, 라디에타 파인칩이 $0.16g/cm^2$였고, 수분보유율은 폐목재칩과 라디에타파인칩으로 제조한 목재고형배지가 대조구인 암면과 코코피트 배지보다 낮았고, 매트타입의 배지가 가장 낮았다. 폐목재 고형배지는 pH 6.59, 전기전도도 6.76 dS/m, 총질소함량 0.50%, 탄질율 113%, 인산(P)함량 10.1 ppm, 카리(K) 77 ppm, 칼슘(Ca)성분 531 ppm, 마그네슘(Mg) 49 ppm, 나트륨(Na) 96 ppm으로 구성되었다. 라디에타파인 고형배지는 pH 5.29, 전기전도도 4.49 dS/m, 총질소함량 0.32%, 탄질율 180%, 인산(P)함량 6.4 ppm, 카리(K) 83 ppm, 칼슘(Ca)성분 97 ppm, 마그네슘(Mg) 29 ppm, 나트륨(Na) 59 ppm으로 구성되었다. 매트형태의 배지를 제외한 목재고형배지의 작물생육발달특성은 암면배지와 코코피트 배지와 유사한 경향을 보여주었다. 이상의 결과에서 폐목재자원을 이용한 유기고형배지는 기존의 배지인 암면배지와 코코피트 배지를 대체할 수 있는 고형배지로서의 가능성을 시사하였다.

This study examined the plant growth and development characteristics of leafy vegetables on the hydroponic substrates of waste wood chips, radiate pine chips, and mat type of waste wood chips. The bulk density of waste wood chips and radiata pine chips were $0.2g/cm^3$ and $0.16g/cm^3$, respectively. The moisture retention properties of both the radiata pine chips and waste wood chips were found to be similar but not better than those of the control rock wool and coco peat hydroponic substrates. The moisture retention property of the mat type was found to be the lowest. The chemical analysis of waste wood hydroponic substrates (w/v) was as follows.; The pH was 6.59, electric conductivity was 6.76 dS/m, total nitrogen content was 0.5%, C/N ratio was 113%, phosphorus was 10.1 ppm, potassium was 77 ppm, calcium was 531 ppm, magnesium was 49 ppm, and sodium was 96 ppm. The results from the radiata pine chemical analysis showed that it had a pH of 5.29, electric conductivity of 4.49 dS/m, total nitrogen content of 0.32%, C/N ratio of 180%, phosphorus of 6.4 ppm, potassium of 83 ppm, calcium of 97 ppm, magnesium of 29 ppm, and sodium of 59 ppm. Except for the plants grown in mat type, the developmental characteristics of the plants grown in rock wool and coco peat hydroponic substrates were similar. Based on the results of the experiment, waste wood resources may possibly be used as an organic solid medium in place of the existing rock wool and coco peat medium.

키워드

참고문헌

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