Soil Moisture Response to Short-Term Inorganic Fertilization on Tef (Eragrostis tef (Zucc.) Trotter) Crop Varieties in Northern Ethiopia
Table 3
Analysis of variance (ANOVA) for fertilizer rates, tef varieties, and their interaction effects on soil moisture determined at the different crop growth stages in northern Ethiopia (2013 cropping season).
Source
DF
SS
MS
F
P
ANOVA of soil moisture determined at sowing time with response to fertilizer, variety, and their interaction
Replication
2
2.000
1.000
Fertilizer (F)
3
14.25
4.75
10.87
0.017
Variety (V)
2
4.056
2.028
4.642
0.09ns
F × V
6
3.222
0.537
1.229
0.2782ns
Error
22
9.611
0.437
Total
35
31.139
ANOVA of soil moisture determined at 33 days after sowing with response to fertilizer, variety, and their interaction
Replication
2
2.000
1.000
Fertilizer (F)
3
130
43.33
32.19
0.0001
Variety (V)
2
14.39
7.195
5.35
0.0800ns
F × V
6
194.9
32.48
24.13
0.0002
Error
22
29.611
1.3460
Total
35
368.9
ANOVA of soil moisture determined at 49 days after sowing with response to fertilizer, variety, and their interaction
Replication
2
2.000
1.000
Fertilizer (F)
3
262.3
87.4
36.79
0.0001
Variety (V)
2
89.56
44.78
18.84
0.0010
F × V
6
197.0
32.83
13.82
0.0030
Error
22
52.28
2.376
Total
35
601.1
ANOVA of soil moisture determined at 64 days after sowing with response to fertilizer, variety, and their interaction
Replication
2
2.000
1.000
Fertilizer (F)
3
207
69
27.97
0.0001
Variety (V)
2
62.167
31.08
12.60
0.004
F × V
6
164.2
27.37
11.09
0.0042
Error
22
54.278
2.467
Total
35
487.64
ANOVA of soil moisture determined at 84 days after sowing with response to fertilizer, variety, and their interaction
Replication
2
2.000
1.000
Fertilizer (F)
3
152
50.67
29.4628147
0.0001
Variety (V)
2
24.22
12.111
7.04258187
0.0301
F × V
6
205
34.17
19.8680165
0.0001
Error
22
37.833
1.720
Total
35
419.05
ANOVA of soil moisture determined at 120 days after sowing with response to fertilizer, variety, and their interaction
Replication
2
2.051E-29
1.026E-29
Fertilizer (F)
3
86.25
28.75
26.79
0.0002
Variety (V)
2
18.056
9.028
8.412
0.0010
F × V
6
153.9
25.65
23.900
0.0002
Error
22
23.611
1.073
Total
35
281.8
DF = degree of freedom; SS = sum of squares; MS = mean squares; F = calculated value (test statistic); P = probability level; ns = nonsignificant at .
