dd
Table III.
Composition of representative soil types from Rongelap Atoll (after Kermdy 1962).
Kabslle Sand, a young soil
Soil Depth - inches
Per Cent Material >> 2 mm
ee RH
Per Cent Nitrogen
Per Cant Organio Matter
Exohange Capacity
Sodium
Magnesium
Caloium
Potassium
Phosphorus (ppm)
pH
0-1
34
0.22
Lell
8
0.02
6.1
6.3
-0.3
1.37
3.01
1.04
2.68
1.57
0.57
30.
8.9
3.01
0015
12.0
9.1
11-96
2
0,01
2.6
Ow
1.37
1.16
2.65
0.20
12,0
9.2
Lomuilal Sand, an old soil
Soi] Depth - inches
Per Cent Material sc» 2 mm
See HE
Per Cent Nitrogen
Per Cent Organics Matter
Exohange Capacity
Sodium
Magnesium
Caloium
Potassium
Phosphorus (ppm)
pH
0-3
0
4-10
10-12
5
18
0.29
0.07
2.73
4.66
§.02
1.09
105.9
8.4
0.73
8.36
1.87
0.18
15.1
8.6
2.8
14.2
2.3
2.3
0.08
2.2
2.6
0.62
1.05
2.50
0.19
14.1
8.3
12-21
12
21-48
2
0.04
0.02
0.62
0.85
2.31
0.16
5.0
8.8
0.64
0.83
2.35
0.16
5.0
9.1
1.9
1.2
1.7
0.6
Gogan Gravelly Sandy Loam, an old soil
Soil Depth - inehes
eR RR SE
Per Cant Material => 2 om
Per Cent Nitrogen
Per Cent Organic Matter
Exohange Capacity
Sodium
Magnesium
Caloium
Potasaiun
Phosphorus (ppm)
pH
*
meq per 100 gm dry #011
14
O~)
1-5
5-12
12-20
20-26
10
1.54
21.4
20
1.96
--
20
0.42
5.9
27
0.18
6.8
39
0.07
2.6
56
0.05
2.6
3.0
0.8
0.4
0.4
0.4
6.2
747
7.8
216.3
8.2
150.6
8.6
25.1
8.8
20.5
2.0
7.0
43.6
74
17.9
4,0
10.3
24,2
be.
1390.4
7.4
892.8
71
415.5
7.9
~-
1,80
«-
742
2.2
—
2.6
1.2
--
1.7
1.1
-~-