ll
Table IIL.
Composition of representative soil types from Rongelap Atoll (after Kemady 1962).
Kabelle Sand, a young soil
Soil Depth = inohes
Per Cent Material >> 2 om
eR E
11-38
8
2
0.22
0.02
0.02
Exohange Capacity
6.3
0.3
O01
Sodium
Magnesium
Calotun
Potassium
Phosphorus (ppm)
pi
34
1-1]
Per Cent Nitrogen
Per Cant Organis Matter
ae
0-1
8.1
1.57
1.37
3.01
0.57
30.0
8.9
“-
3.01
1.04
2.68
0015
12.0
9ol
2.6
1.37
1.16
2.65
0.20
12.0
9.2
ae
EB
Lomuilal Sand, an old soil
Soil Dapth- inches
ors]
Per Cent Material => 2 mm
0
Per Cent Nitrogen
Per Cent Organio Matter
Exohange Capacity
Sodium
Magnesium
Caloium
Potaasium
Phosphorus (ppm)
pH
0.29
2.8
14.2
2.73
4.66
5.02
1.09
105.9
8.4
4-10
10-12
5
18
0.07
2.3
2.3
0.73
8.36
1.87
0.18
15.1
8.6
0.08
2.2
2.6
0.82
1.05
2.50
0.19
14,2
8.3
12-21
12
21 48
2
0.04
1.9
1.
0.82
0.85
2.31
0.16
5.0
8.8
0.02
1.7
0.6
0.84
0.83
2035
0.16
5.0
9.1
5212
12-20
20-26
27
0.18
6.8
7.2
0.4
2.2
6.2
39
0.07
2.6
2.6
0.4
1.2
7.7
56
0.05
2.6
1.7
0.4
ll
7.8
Gogan Gravelly Sandy Loam, an old soil
& eee
Soil Depth « inehes
Per Cent Material => 2 mm
Per Cent Nitrogen
Per Cent Organic Matter
Exchange Capacity
Sodium
Magnesium
Caloium
Potassium
Pheaphorus (ppm)
pH
*
meq per 100 gm dry soil
140
0-1
1-5
10
1.54
21.4
20.5
260
7.0
10.3
20
1.96
-43.6
3.0
74
24.2
20
0.42
5.9
17.9
0.8
4.0
Wei
-—
1.80
--
“=
oe
a0
1390.4
892.8
415.5
216.3
150.6
2501
74
Jel
79
8.2
8.6
8.8