Effect of ISPAD Anaerobic Digestion on Ammonia Volatilization from Soil Applied Swine Manure
Table 2
Characteristics of the five experimental soils used to measure NH3 volatilization for the two experimental manures, untreated (open tank) and anaerobically treated (ISPAD).
Property
Washed sand
Ste Rosalie clay
Upland sandy loam
St Bernard loam
Ormstown loam
Organic matter (%)
0.1 (0.0)
6.2 (0.5)
5.0 (0.3)
6.5 (0.4)
3.9 (0.2)
H2O capacity (%)
14.3 (0.0)
32.8 (1.6)
24.8 (1.7)
25.4 (1.5)
23.8 (2.5)
Particle size (%):
Sand
82.9 (0.9)
7.4 (1.7)
71.2 (1.8)
38.6 (1.5)
1.6 (3.4)
Silt
0.5 (0.9)
25.7 (1.5)
6.8 (1.7)
31.3 (1.9)
62.2 (1.3)
Clay
16.6 (0.9)
66.9 (2.2)
22.0 (0.1)
30.1 (0.4)
36.3 (2.2)
pH
6.3 (0.1)
6.8 (0.1)
6.5 (0.1)
6.9 (0.3)
6.5 (0.9)
Buffer pH
7.3 (0.1)
7.2 (0.1)
6.9 (0.1)
7.3 (0.3)
7.1 (0.4)
CEC (cmol kg−1)
2.0 (0.5)
36.8 (2.8)
18.3 (1.0)
23.3 (2.2)
20.6 (1.1)
Cation saturation (%)
26.0 (5.9)
92.0 (2.6)
73.0 (3.5)
90.6 (8.8)
81.8 (17.3)
TKN (g kg−1)
2.4 (0.6)
5.4 (0.8)
4.4 (0.2)
3.5 (0.9)
3.7 (1.3)
TAN (mg kg−1)
3.0 (2.0)
3.0 (0.4)
6.0 (1.0)
5.0 (3.0)
8.0 (3.0)
The standard deviation is presented in the parenthesis ().
