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목차
I. 서론 7
II. 연구사 10
III. 재료 및 방법 12
3.1. Bio-char를 이용한 조경상토 제조 12
3.1.1. 공시재료 12
3.1.2. 수종별 Bio-char가 함유된 혼합상토 제조 12
3.1.3. 혼합 상토의 물리화학적 특성 분석 16
3.1.4. 혼합상토의 식물 발아 지수 (Germination index) 분석 21
3.2. Bamboo Bio-char 및 굴 패각을 이용한 조경상토 제조 21
3.2.1. 공시재료 21
3.2.2. 굴 패각 분말 첨가 조경상토 제조 22
3.2.3. 굴 패각 분말 첨가 조경상토의 화학적 특성 분석 25
3.2.4. 굴 패각 분말 첨가 조경상토의 식물 생장 특성 25
3.2.5. 발아율 (Seed germination)측정 25
3.2.6. 지상부 (Shoot height) 및 지하부 (Root height) 길이 측정 27
3.3. 통계 분석 27
IV. 결과 및 고찰 28
4.1. Bio-char를 이용한 조경상토 개발 28
4.1.1. Bio-char와 참나무 톱밥 혼합상토의 물리화학적 특성 평가 28
4.1.2. Bio-char와 참나무 톱밥 혼합상토의 식물 발아 지수 48
4.2. 굴 패각을 이용한 조경상토 개발 50
4.2.1. 굴 패각 분말 첨가 조경상토의 화학적 특성 50
4.2.2. 굴 패각 분말 첨가 조경상토의 식물 생장 특성 62
V. 결론 69
참고문헌 71
요약 75
ABSTRACT 77
Table 1. Composition and formulation of bio-char based material 13
Table 2. Composition and formulation of growing media 23
Fig. 1. Raw material used in the study. (a) Peat Moss, (b) Bamboo Bio-char, (c) Pine Bio-char, (d) Oak Bio-char, (e) Oak sawdust. 14
Fig. 2. Bio-char based materials used in the study. (a) Control: Commercial growing media. (b) PBS, (c) PPS, (d) POS. 15
Fig. 3. Standard curve of KH₂PO₄ solution. 19
Fig. 4. Oyster shell used in the study. 22
Fig. 5. Growing media used in the study. (a) PBS70-O30, Bamboo Bio-char based material/Oyster shell=70/30 (w/w); (b)... 24
Fig. 6. Model of pot tray experiment. Control, commercial growing media;... 26
Fig. 7. The effect of Bio-char based material on bulk density. Error bars indicate... 29
Fig. 8. The effect of Bio-char based material on particle density. Error bars... 31
Fig. 9. The effect of Bio-char based material on porosity. Error bars indicate... 33
Fig. 10. The effect of Bio-char based material on water holding capacity. Error... 35
Fig. 11. The effect of Bio-char based material on pH. Error bars indicate standard... 37
Fig. 12. The effect of Bio-char based material on electrical conductivity. Error... 39
Fig. 13. The effect of Bio-char based material on organic matter. Error bars... 41
Fig. 14. The effect of Bio-char based material on available phosphate. Error bars... 43
Fig. 15. The effect of Bio-char based material on C/N ratio. Error bars indicate... 45
Fig. 16. The effect of Bio-char based material on exchangeable cation. Error bars... 47
Fig. 17. The effect of Bio-char based material on germination index. Error bars... 49
Fig. 18. The effect of Oyster shell mixing ratio on pH. Error bars indicate... 51
Fig. 19. The effect of Oyster shell mixing ratio on electrical conductivity. Error... 53
Fig. 20. The effect of Oyster shell mixing ratio on organic matter. Error bars... 55
Fig. 21. The effect of Oyster shell mixing ratio on available phosphate. Error bars... 57
Fig. 22. The effect of Oyster shell mixing ratio on C/N ratio. Error bars indicate... 59
Fig. 23. The effect of Oyster shell mixing ratio on e xchangeable cation . Error... 61
Fig. 24. Growth of Lactuca sativa on the field for 21 days. (a) Commercial... 63
Fig. 25. The effect of Oyster shell mixing ratio on seed germination. on seed... 64
Fig. 26. The effect of Oyster shell mixing ratio on shoot height. Error bars... 66
Fig. 27. The effect of Oyster shell mixing ratio on root height. Error bars indicate... 68