International Scholarly Research Notices / 2012 / Article / Tab 7 / Research Article
Extractable Al and Soil Solution Ionic Concentrations in Strongly Leached Soils from Northwest Iberia: Effects of Liming Table 7 Values of soil solution pH, and activities of calcium {Ca+2 }, magnesium {Mg+2 }, potassium {K+ }, sodium {Na+ }, iron {Fe+3 }, manganese {Mn+2 }, zinc {Zn+2 }, and sulfate
{
S
O
4
−
2
}
ions (μ M L−1 ) in unlimed (control) and limed studied soil solutions, as speciated by the GEOCHEM program. Symbol: DL: detection limit. Values followed by the same letter in column are not significantly different at
𝑃
<
0
.
0
5
level.
Pedon Horizon CaCO3 added pH
{
C
a
+
2
}
{
M
g
+
2
}
{
K
+
}
{
N
a
+
}
{
F
e
+
3
}
{
M
n
+
2
}
{
Z
n
+
2
}
{
S
O
4
−
2
}
(t ha−1 ) (μ M L−1 ) Umbrisols 1 Ah1 0 4.6 118.9a 213.8a 187.3a 200.4a
7
.
0
7
𝐸
−
0
5
34.9a 2.2a 5.58 2 5.0 124.0b 250.0b 3320.0b 273.4b <DL 1.2b 0.5b <DL 4 5.8 193.9c 255.7b 3570.0c 288.9b <DL 0.9c 0.4b <DL 6 6.0 280.2d 268.2c 3694.0d 366.2c <DL 0.2d 0.2b <DL 3 Ah1 0 4.9 88.4a 62.7a 59.2a 313.2a
7
.
9
9
𝐸
−
0
5
9.7a 1.4a 0.11 2 5.0 135.1b 116.1b 1513.0b 400.3b <DL 0.6b 1.3a <DL 4 6.4 149.4c 123.2c 1993.0b 414.1b <DL 0.3c 0.7b <DL 6 6.6 161.6d 145.6d 2421.0c 477.6b <DL <DL <DL <DL 4 Ah1 0 4.8 58.1a 52.1a 67.5a 108.4a
1
.
6
0
𝐸
−
0
5
2.3a 2.2a 17.40 2 6.6 64.1b 55.6a 815.9b 155.8b <DL 0.3b 0.5b <DL 4 6.8 68.4b 65.6b 1473.0c 179.5b <DL <DL 0.5b <DL 6 6.9 74.2c 75.8c 1654.0c 200.0c <DL <DL <DL <DL Cambisols 5 Ah 0 4.7 37.8a 99.6a 69.6a 138.9a
3
.
4
9
𝐸
−
0
6
45.9a 1.6a 9.61 2 6.2 51.7b 180.9b 1504.0b 217.5b <DL 0.9b 0.5b <DL 4 6.4 170.4c 239.1c 5370.0c 220.3b <DL 0.8b 0.4b <DL 6 6.5 259.8d 343.3d 8597.0d 244.3b <DL 0.2c 0.4b <DL 6 Ah1 0 4.6 65.7a 53.2 34.6a 142.8a
6
.
5
7
𝐸
−
0
5
24.5a 3.9a 9.62 2 6.4 69.7a 58.4 1849.0b 184.0b <DL 0.6b 0.9b <DL 4 6.6 77.8b 59.6 2281.0c 223.6c <DL <DL <DL <DL 6 6.8 123.6c 64.7 3741.0d 228.2c <DL <DL <DL <DL Luvisols 7 Ah 0 5.2 133.1a 80.4a 107.3a 186.2a
1
.
0
8
𝐸
−
0
6
17.8a 1.2a 0.47 2 6.2 557.6b 78.2a 2034.0b 222.2b <DL 0.2b 0.4b <DL 4 6.6 558.0b 140.0b 20370.0c 227.4b <DL <DL <DL <DL 6 6.8 587.8b 180.0c 21750.0c 256.5b <DL <DL <DL <DL 8 Bt 0 5.3 72.1a 27.4a 29.9a 277.30
3
.
9
1
𝐸
−
0
6
11.5a 1.0a 0.48 2 5.5 75.8a 46.4b 1702.0b 305.50 <DL 2.2b 0.5b <DL 4 6.0 154.0b 52.9c 4749.0c 321.60 <DL 1.4c 0.5b <DL 6 6.2 373.1 213.6d 12700.0d 2554.00 <DL <DL <DL <DL Regosols 10 Ah 0 4.5 31.8a 95.89a 89.8a 151.4a
1
.
4
1
𝐸
−
0
4
37.9a 103.7a 4.54 2 5.1 100.6b 96.06a 3006.0b 160.3a <DL 4.7b 6.7b <DL 4 5.6 147.1c 120.83b 1823.0c 190.9a <DL 0.6c 0.5c <DL 6 6.1 177.8d 184.51c 5552.0d 242.0b <DL 0.2c 0.5c <DL 11 Ah 0 5.1 71.7a 130.7a 137.3a 308.1a
2
.
0
3
𝐸
−
0
6
29.2a 0.9a <DL 2 6.4 73.4a 174.9b 2118.0b 194.1b <DL 1.2b 0.5b <DL 4 6.5 130.6b 244.9c 3947.0c 196.2b <DL 0.8b <DL <DL 6 6.6 302.9c 294.0c 10150.0d 283.7c <DL 0.3b <DL <DL
