Agriculture Reference
In-Depth Information
TABLE 7.4
Statistical Analysis of SOC Pool and Its Increase for Eight Long-Term Experimental Sites
SOC Pool (Mg ha
−1
)
Δ
SOC Pool (Mg ha
−1
)
Fertilizer Management
N
Mean
Standard Deviation
Minimum
Maximum
Mean
Minimum
Maximum
CF
204
20.8
b
2.1
16
25.1
1.8
b
−3.4
13.1
O
107
20.3
b
2.5
15.3
28.1
1.6
b
−2.3
6.5
UF
172
19.7
ab
1.7
15.8
23.4
0.8
b
−3.6
4.2
CFO
282
24.3
c
6.6
16.8
57.1
5.4
c
−1
37.3
UFO
238
23.4
c
7.2
15.3
53.9
4.8
c
−3.1
33.4
CK
110
18.9
a
1.8
14.6
23.0
(−)0.5
a
−3.8
3.8
Total
1113
21.8
5.3
14.6
57.1
3.0
−3.8
37.3
Note:
Means followed by different letters differ from each other at the 5% level of probability.
