Table 2:
Summary of model statistics for cumulative yield, CumY, temporal yield variance, TYV, and coefficient of variation, CV, for a long-term experiment in each of the two cycles of a long-term experiment (LTE).
Variable cycle
Model
Nugget variance
Structural variance
Range (m)
CumY
Spherical
LTE
6.5–34.3
9.2–95.9
9.9–66.4
0.89–0.64
0.35–0.90
Cycle 1
15.2
31.6
67.4
0.52
0.86
Cycle 2
12.1
24.9
68.4
0.51
0.89
TYV
Exponential
LTE
3.1–0.83
29.3–7.8
5.4–16.2
0.89–0.25
0.25–0.57
Cycle 1
6.1
18.9
8.7
0.89
0.23
Cycle 2
2.5
13.2
46.5
0.51
0.56
CV%
Exponential
LTE
37.5–33.8
655.0–196.0
3.6–12.6
0.83–0.91
0.23–0.49
Cycle 1
40.1
302.6
2.3
0.86
0.36
Cycle 2
20.2
138.1
8.4
0.82
0.52