Agriculture Reference
In-Depth Information
surface layer (se = standard error).
Field
MBC (μg g
−1
)
MBN (μg g
−1
)
Total enzyme
activity
a
Total FAME
(nmol g
−1
soil)
EOC
b
(μg g
−1
)
EON
b
(μg g
−1
)
+
4
NH-N
(μg g
−1
)
−
3
NO-N
(μg g
−1
)
Olsen P
(μg g
−1
)
Mean
se
Mean
se
Mean
se
Mean
se
Mean
se
Mean
se
Mean
se
Mean
se
Mean
se
1
67.7
4.95
7.2
0.67
28.5
1.26
80.5
3.63
22.9
1.96
2.9
0.45
0.28
0.02
0.19
0.13
20.0
1.25
2
76.1
3.03
4.6
0.79
38.2
1.02
80.6
7.38
32.9
0.94
5.0
0.20
0.38
0.03
0.54
0.08
30.3
2.65
3
142.7
4.91
14.0
1.73
67.3
2.73
114.5
6.48
48.9
4.23
9.5
0.72
0.37
0.03
4.07
1.25
56.5
5.57
4
126.9
11.25
19.2
2.77
61.3
1.83
105.9
5.39
36.6
2.50
4.8
0.37
1.16
0.26
44.91
12.76
29.2
1.11
5
119.5
5.67
9.8
1.22
77.5
3.53
137.6
4.67
44.3
2.16
7.2
0.34
1.19
0.07
10.54
1.56
28.3
3.36
6
122.3
9.41
15.3
0.94
66.5
3.95
118.6
16.09
40.3
4.14
5.8
1.10
0.51
0.03
18.45
8.12
32.9
4.15
7
108.5
4.59
11.7
2.24
49.2
2.87
86.5
5.55
41.4
2.18
8.2
0.65
1.43
0.18
13.12
3.19
29.2
1.78
8
121.6
4.44
23.0
1.43
73.1
3.81
92.7
9.73
41.6
1.75
4.1
0.18
0.34
0.06
4.27
1.81
4.9
0.21
9
122.9
6.53
16.1
0.70
62.6
2.02
100.6
5.37
43.2
2.03
5.8
1.06
0.54
0.12
18.13
7.00
18.3
0.86
10
132.2
7.26
13.5
1.27
62.5
1.23
159.4
8.53
57.8
1.77
10.9
0.29
0.44
0.03
1.48
0.26
16.1
1.80
11
120.4
6.84
12.5
1.38
59.8
2.50
118.5
7.53
57.0
3.37
12.5
0.43
0.24
0.05
2.89
0.55
12.8
1.41
12
100.1
8.88
7.9
1.60
66.8
3.75
132.0
10.76
91.9
4.07
18.0
0.83
0.18
0.03
2.94
0.36
93.1
2.70
13
165.8
11.92
20.0
1.14
83.8
3.39
126.3
10.45
73.0
2.40
12.7
0.52
0.42
0.04
4.21
0.57
15.8
1.03
Mean
117.5
13.4
61.3
111.8
48.6
8.2
0.57
9.67
29.8
CV
21.9
39.8
24.7
21.2
37.1
52.3
70.8
127.5
76.6
a
Total enzyme activity is calculated as the geometric mean of activities of all nine enzymes tested here (García-Ruiz et al., 2008).
b
EOC: K
2
SO
4
extractable organic C; EON: K
2
SO
4
extractable organic N.
