표제지
국문초록
목차
I. 서론 17
II. 연구사 19
1. 고흡수성 폴리머 19
2. 고흡수성 폴리머의 원예적 이용 21
3. Nanocomposite Hydrogel 23
III. 재료 및 방법 29
1. Nanocomposite Hydrogels을 혼합한 용토의 물리적인 특성조사 29
1.1. 토양장력과 토양수분함량 조사 30
1.2. 토양수분함량의 변화 조사 31
1.3. 토양3상 구성비율 조사 32
2. Nanocomposite Hydrogel을 혼합한 원예용 상토의 토양수분함량, 관수방법과 국화생육 조사 34
2.1. 토양수분함량 조사 34
2.2. 관수량과 토양수분함량 조사 35
2.3. 국화의 생육조사 36
3. Nanocomposite Hydrogel을 혼합한 원예용토의 관수주기에 따른 토양수분함량, 관수량과 국화생육 조사 37
3.1. 토양수분함량의 조사 37
3.2. 관수량 조사 38
3.3. 국화의 생육조사 38
IV. 결과 및 고찰 40
1. Nanocomposite Hydrogels을 혼합한 용토의 물리적인 특성 40
1.1. Nanocomposite Hydrogels의 팽윤도에 따른 토양장력과 토양수분함량의 변화 40
1.2. Nanocomposite Hydrogels의 팽윤도에 따른 토양수분함량의 변화 44
1.3. Nanocomposite Hydrogels의 팽윤도에 따른 토양3상의 구성비율 46
2. Nanocomposite Hydrogel을 혼합한 원예용 상토의 토양수분함량과 관수량의 변화와 국화생육 특성 50
2.1. Nanocomposite Hydrogel의 농도에 따른 토양수분함량의 변화 50
2.2. Nanocomposite Hydrogel의 농도에 따른 관수량의 변화 52
2.3. Nanocomposite Hydrogel의 농도에 따른 국화의 생육 특성 54
3. Nanocomposite Hydrogel을 혼합한 원예용토의 관수주기에 따른 토양수분함량과 관수량의 변화와 국화생육 특성 60
3.1. Nanocomposite Hydrogel의 농도와 관수주기에 따른 토양수분함량의 변화 60
3.2. Nanocomposite Hydrogel의 농도와 관수주기에 따른 관수량의 변화 66
3.3. Nanocomposite Hydrogel의 농도와 관수주기에 따른 국화의 생육 특성 68
종합고찰 89
참고문헌 92
Abstract 108
Table 1. Composition and gel fraction of Nanocomposite Hydrogel. 27
Table 2. Content of potassium ions according to the composition ratio of monomers used in the synthesis of Nanocomposite Hydrogel. 28
Table 3. Parameters, mathematical expressions, and descriptions of the steps for fluorescence transient O-J-I-P, technical fluorescence, quantum... 39
Table 4. Percentage of 3-phase and porosity in 4 types of soil mixed with superabsorbent polymer(SAP)z.[이미지참조] 48
Table 5. Percentage of 3-phase and porosity in 4 types of soil mixed with Nanocomposite Hydrogel(NH). 49
Table 6. Effects of different Nanocomposite Hydrogel(NH) concentration on the growth of Chrysanthemum morifolium at 8 weeks after treatment. 58
Table 7. Amount of total irrigation according to Nanocomposite Hydrogel(NH) concentration and irrigation cycle. 67
Table 8. Effects of different Nanocomposite Hydrogel(NH) concentration and irrigation cycle every 2 days on the growth of Chrysanthemum... 71
Table 9. Effects of different Nanocomposite Hydrogel(NH) concentration and irrigation cycle every 4 days on the growth of Chrysanthemum... 76
Table 10. Effects of different Nanocomposite Hydrogel(NH) concentration and irrigation cycle every 6 days on the growth of... 82
Table 11. Comparison of Chlorophyll fluorescence parameters on the leaf of the Chrysanthemum according to the concentration of... 86
Fig. 1. Photograph measuring three-phases of soil with North Carolina State University Porometer. 33
Fig. 2. Changes in soil moisture content and soil tension in soil mixed with Terracottem and two kinds of Nanocomposite Hydrogels; high-swell... 42
Fig. 3. Comparison of volumetric water content in section of easily available water(pF1.0~1.7) and section of water buffering... 43
Fig. 4. Changes in soil moisture content measured by soil moisture sensor in three types of soil during the experimental period; 320g of river... 45
Fig. 5. Changes in soil moisture content monitored by moisture sensors in four types soils mixed with Nanocomposite Hydrogel(NH),... 51
Fig. 6. Total amount of irrigation during the experimental period according to mixing ratio of Nanocomposite Hydrogel, synthesised with... 53
Fig. 7. Nanocomposite Hydrogel swells in the pot to retain moisture from the soil. 56
Fig. 8. Plant height(A), plant width(B), and number of flowers(C) of Chrysanthemum morifolium grown under different Nanocomposite... 57
Fig. 9. Photographs before and after harvesting chrysanthemums at various concentrations of Nanocomposite Hydrogel(NH). 59
Fig. 10. Changes in volumetric water content according to the irrigation cycle every 2 days and the concentration of Nanocomposite... 61
Fig. 11. Changes in volumetric water content according to the irrigation cycle every 4 days and the concentration of Nanocomposite... 63
Fig. 12. Changes in volumetric water content according to the irrigation cycle every 6 days and the concentration of Nanocomposite... 65
Fig. 13. Plant height(A), plant width(B), and number of flowers(C) of Chrysanthemum morifolium grown under different Nanocomposite... 70
Fig. 14. Harvest photos of chrysanthemums according to the irrigation cycle every 2 days and the concentration of Nanocomposite Hydrogel(NH). 72
Fig. 15. Plant height(A), plant width(B), and number of flowers(C) of Chrysanthemum morifolium grown under different Nanocomposite... 75
Fig. 16. Harvest photos of chrysanthemums according to the irrigation cycle every 4 days and the concentration of Nanocomposite Hydrogel(NH). 77
Fig. 17. Plant height(A), plant width(B), and number of flowers(C) of Chrysanthemum morifolium grown under different Nanocomposite... 81
Fig. 18. Harvest photos of chrysanthemums according to the irrigation cycle every 6 days and the concentration of Nanocomposite Hydrogel(NH). 83
Fig. 19. Fm/Fo(A) and Fv/Fm(B) of chrysanthemum for well watered and concentration of Nanocomposite Hydrogel(Tukey's HSD test, P 〈...[이미지참조] 87
Fig. 20. ABS/RC(A), TRO/RC(B), ETO/RC(C) and DIO/RC(D) of chrysanthemum for well watered and concentration of Nanocomposite Hydrogel(Tukey's...[이미지참조] 88