Parameter |
Control soil |
Sewage sludge 1% |
Sewage sludge 3% |
Sewage sludge 5% |
Poultry manure 1% |
Poultry manure 3% |
Poultry manure 5% |
|
Exchangeable cations |
Exchangeable cations |
Exchangeable cations |
Exchangeable cations |
Exchangeable cations |
Exchangeable cations |
Exchangeable cations |
NH4 (cmolc/kg) |
0.03e |
0.2d |
0.6c |
1.2a |
0.2d |
0.5c |
0.9b |
Na (cmolc/kg) |
0.6c |
0.6c |
0.7bc |
0.7bc |
0.7bc |
0.9ab |
1.1a |
K (cmolc/kg) |
1.7c |
1.8c |
2.1ab |
2.1ab |
1.9bc |
2.1ab |
2.2a |
Ca (cmolc/kg) |
8.3f |
8.7e |
9.4c |
10.2a |
8.6e |
9.1d |
9.6b |
Mg (cmolc/kg) |
2.6d |
2.7cd |
2.9b |
3.1a |
2.7cd |
2.8bc |
2.9b |
|
Soil solution |
Soil solution |
Soil
solution |
Soil solution |
Soil solution |
Soil solution |
Soil solution |
pH |
7.42b |
7.45b |
7.40bc |
7.30c |
7.46b |
7.58a |
7.65a |
EC (dS/m) |
1.19g |
1.67f |
2.10e |
3.15c |
2.45d |
3.94b |
5.65a |
NH4 (mM) |
0.02e |
0.41c |
0.78b |
0.95a |
0.06e |
0.17d |
0.18d |
NO3 (mM) |
0.07d |
0.19c |
0.42b |
0.83a |
0.15c |
0.22c |
0.36b |
Na (mM) |
2.45f |
2.75ef |
2.90de |
3.15cd |
3.45c |
5.30b |
8.10a |
K (mM) |
2.67f |
3.05ef |
3.40de |
3.70d |
4.90c |
8.20b |
12.40a |
Ca (mM) |
7.80f |
10.90e |
13.10d |
15.20c |
13.00d |
16.60b |
21.70a |
Mg (mM) |
3.20f |
4.70e |
7.20c |
10.40a |
5.40d |
6.80c |
9.50b |