Agriculture Reference
In-Depth Information
ErSS
¼
TSS
TrSS
RSS
¼
23
:
763
20
:
296
0
:
017
¼
3
:
449
3
X
4
i¼
1
y
5
2
0
2
4
2
4
2
1
3
134
:
þ
142
:
þ
130
:
þ
134
:
2
i
00
SS
ð
Nitrogen
Þ¼
CF
¼
8139
:
047
¼
7
:
816
:
9
3
X
3
j¼
1
y
5
2
2
2
6
2
1
4
172
:
þ
189
:
þ
179
:
2
0
j
0
SS
ð
Spacing
Þ¼
CF
¼
8139
:
047
¼
11
:
70
:
12
SS
ð
NS
Þ¼
TrSS
SS
ð
Nitrogen
Þ
SS
ð
Spacing
Þ¼
20
:
296
7
:
816
11
:
706
¼
0
:
773
Now we make the following analysis of variance table with the help of the above quantities:
ANOVA
SOV
d.f.
MS
MS
F
-ratio
Table value of
F
Replication
3
1
¼
2
0.017
0.009
0.055
F
0
:
05
;
2
;
22
¼
3
:
44
F
0
:
01
;
2
;
22
¼
5
:
72
Treatment
12
1
¼
11
20.296
1.845
11.768
F
0
:
05
;
11
;
22
¼
2
:
27
F
0
:
01
;
11
;
22
¼
3
:
19
Nitrogen
4
1
¼
3
7.816
2.605
16.617
F
0
:
05
;
3
;
22
¼
3
:
05
F
0
:
01
;
3
;
22
¼
4
:
82
Spacing
3
1
¼
2
11.707
5.854
37.333
F
¼
3
:
44
F
¼
5
:
72
0
:
05
;
2
;
22
0
:
01
;
2
;
22
NS
3
2
¼
6
0.773
0.129
0.821
F
0
:
05
;
6
;
22
¼
2
:
55
F
0
:
01
;
6
;
22
¼
3
:
76
Error
35
2
11
¼
22
3.449
0.157
Total
36
1
¼
35
23.763
It is clear from the above table that all the
effects of variety as well as the spacing are sig-
nificant at 1% level of significance. But the rep-
lication interaction effects of nitrogen and
spacing are not significant even at 5% (desired
level of significance) level of significance.
To find out which dose of nitrogen and which
spacing have maximum yield potentiality, we are
to calculate the critical difference values for
nitrogen and spacing effects separately using
the following formulae:
Table of averages
Yield (q/ha)
Variety
N2
15.78
N1
14.94
N4
14.93
N3
14.49
Seed rate
S2
15.77
S3
14.97
S1
14.38
r
2ErMS
r:s
Nitrogen N2 has recorded significantly the
highest yield compared to other doses of nitro-
gen. The difference of means between any two
varieties for the rest three varieties (N1, N3, N4)
is not greater than the critical difference value;
they are statistically at par. There exists no
significant difference among the nitrogen doses
N1, N3, and N4. On the other hand, spacing S2
is the best plant density for getting maximum
yield of paddy followed by S3 and S1. So far
CD
0
:
01
Nitrogen
ð
Þ ¼
t
0
:
005
;
err
:
d
:
f
r
2
0
:
157
¼
2
:
819
¼
0
:
527
;
3
3
r
2ErMS
r:n
CD
0
:
01
Spacing
ð
Þ ¼
t
0
:
005
;
err
:
d
:
f
r
2
0
:
157
¼
2
:
819
¼
0
:
456
:
3
4
