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碩士學位論文
인산석고가 제주도 화산회토양의
pH,
Calcium,
Sulfur
및
Aluminium에
미치는 영향
濟州大學校 大學院
農 學 科
玄
咏 訓
i
iii
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-Ⅱ. 재료 및 방법
Table 1. Chemical properties of the soil before experiment. Soil series pH OM Alo Feo Alp Alo-Alp H2O KCl (%) (%) (%) (%) (%) WM 5.0 4.3 21.5 3.36 2.26 2.26 1.10 TP 4.6 4.2 24.4 3.69 2.80 1.66 2.03 HG 5.5 4.5 21.6 4.01 3.51 1.34 2.67 HW 5.3 4.5 14.3 3.69 2.77 1.31 2.38 JJ 5.5 4.1 5.67 1.51 1.91 0.90 0.61 GJ 5.0 4.1 4.79 0.69 1.37 0.36 0.33 Soil series
CEC Ex. Cation (cmolc kg-1)
(cmolc kg-1) K Ca Mg Na Al WM 40.3 0.16 0.37 0.21 0.28 1.52 TP 41.6 0.28 0.57 0.29 0.41 2.10 HG 34.9 0.33 3.09 0.93 0.33 0.50 HW 32.5 0.18 1.77 0.76 0.23 0.86 JJ 20.0 0.16 0.04 0.07 0.15 1.62 GJ 20.8 0.17 8.79 1.93 0.22 0.33
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-Table 2. Available chemical components of the soil ameliorants used in this experiments.
Soil ameliorants Alkalinity CaO MgO K2O Al S
(%) (%) (%) (%) (%) (%)
Shell meal 52.8 52.1 0.48 0.27 0.04 0.28 Dolomitic limestone 52.2 28.6 17.2 0.30 0.24 1.06 phosphogypsum 33.6 33.5 0.08 0.15 0.13 18.6
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WM TP HG HW JJ GJ Wa te r pH 0 2 4 6 8 WM TP HG HW JJ GJ KC l p H 0 2 4 6 8
Fig. 1. Soil pH (H2O and KCl) after soil ameliorant treatment. The results of a
two-way ANOVA showed significant difference in the water pH and KCl pH values both among soil ameliorant treatments and among soils (p<0.01).
-WM TP HG HW JJ GJ Ex C a (c m o lc kg -1 ) 0 2 4 6 8 WM TP HG HW JJ GJ Ex M g ( c m o lc k g -1 ) 0 1 2 3 4
Fig. 2. Concentrations of exchangeable calcium and magnesium after soil ameliorant treatment. The results of a two-way ANOVA showed significant difference in the concentrations of exchangeable calcium and magnesium values both among soil ameliorant treatments and among soils (p<0.01).
11 -WM TP HG HW JJ GJ S u m Bas es (K+ Ca+ M g+ Na) ( cmol c kg -1 ) 0 2 4 6 8
Fig. 3. Concentration of sum of exchangeable cation after soil ameliorant treatment. The results of a two-way ANOVA showed significant difference in the sum of exchangeable cation values both among soil ameliorant treatments and among soils (p<0.01).
13 -WM TP HG HW JJ GJ E x. A l ( c m o lc kg -1 ) 0.0 0.5 1.0 1.5 2.0 2.5 WM TP HG HW JJ GJ A l Sa tu rat io n ( % ) 0 10 20 30 40 50 60 70
Fig. 4. Concentrations of exchangeable aluminium and aluminium saturation after soil ameliorant treatment. The results of a two-way ANOVA showed significant difference in the concentrations of exchangeable aluminium and aluminium saturation values both among soil ameliorant treatments and among soils (p<0.01).
WM TP HG HW JJ GJ AlCu-K ( m g kg -1 ) 0 500 1000 1500 2000 2500 3000 3500
Fig. 5. Concentration of exchangeable aluminium(Cu-K) after soil ameliorant treatment. The results of a two-way ANOVA showed no significant difference in the concentration of exchangeable aluminium(Cu-K) values among soil ameliorant treatments (p<0.01), but there was a significant difference in the concentration of exchangeable aluminium(Cu-K) values among soils (p<0.01).
-WM TP HG HW JJ GJ Exch an g eab le S (m g /k g ) 0 50 100 150 200 250 300 WM TP HG HW JJ GJ Ex tract ab le - Exch an g e ab le S (m g /k g ) 0 100 200 300 400 500
Fig. 6. Concentrations of exchangeable sulfur and absorbed sulfur after soil ameliorant treatment. The results of a two-way ANOVA showed significant difference in the concentrations of exchangeable sulfur and absorbed sulfur values both among soil ameliorant treatments and among soils (p<0.01).
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