International Journal of Horticulture, 2017, Vol.7, No. 15, 124-132
127
Mean followed by the same letter(s) within a treatment group are not significantly different at 5% probability
level using Duncan Multiple Range Test (DMRT).
Table 3b Interactive effect of spent bleaching earth and pig dung manure on the vegetative growth and nitrogen utilization of maize
(Zea mays L.) at 2 WAP (2014/2015)
Treatments
Parameters
PDM SBE Number of leaves Leaf area (cm
2
) Plant height (cm) Stem diameter
(cm)
Number of roots Total
root
length (cm)
0
0
9.00
102.60c
60.20c
2.30c
15.40b
15.00a
5.00 9.00
115.42b
63.80b
2.60ab
15.60a
15.00a
7.50 9.00
124.10a
65.80a
2.60ab
15.60a
14.90b
10.00 9.10
123.60a
65.90a
2.70a
15.30c
14.90b
ns
b
b
b
b
b
10
0
9.10
112.82b
63.00c
3.00c
15.80b
18.00c
5.00 9.30
141.78a
72.00b
3.00c
15.80b
18.40b
7.50 9.28
142.12a
75.00a
3.40b
15.80b
18.60a
10.00 9.30
143.60a
75.00a
3.80a
16.00a
18.60a
ns
a
a
a
a
a
PM *
*
*
*
*
*
SBE * PM **
**
**
**
**
**
Note: SBE = Spent Bleaching Earth; PM = Pig Manure; ns = not significantly different at LSD (0.05) probability level;* =
significantly at LSD (0.05), ** = Highly significantly at LSD (0.05)
Mean followed by the same letter(s) within a treatment group are not significantly different at 5% probability
level using Duncan Multiple Range Test (DMRT).
2.4 Interactive effect of SBE and PM on the vegetative growth of maize (Zea mays L.) at 8 WAP
The trend of response of vegetative growth of maize to the combined application of SBE and PM at various levels
at 8 WAP (2013/2014) is relatively similar in performance to results obtained in 2 WAP (2013/2014), except for
increase in sizes of vegetative plant parts. There was significant difference in number of leaves, leaf area, plant
height, stem diameter, number of roots and total root length when 5 t/ha
-1
SBE was added to various levels of PM.
Plots that were treated with 5 t/ha
-1
SBE combined with 5 or 10 t/ha
-1
PM are not significantly different in number
of leaves, plant height, stem diameter, number of roots and total root length, but is significantly different in leaf
area (Table 4a). There was a positive interaction between 5 t/ha
-1
SBE and 10 t/ha
-1
PM as compared to 0 level of
SBE and 0-10 t/ha
-1
of PM.
Table 4a Interactive effect of spent bleaching earth and pig manure on the vegetative growth and nitrogen utilization of maize (Zea
mays L.) at 8 WAP (2013/2014)
Treatments
Parameters
SBE
PM Number of leaves Leaf area (cm
2
) Plant height (cm) Stem diameter
(cm)
Number
of
roots
Total
root
length (cm)
0
0
15.30c
213.20c
100.70bc
4.10b
36.00d
16.50c
2.50
16.70bc
220.00ab
100.90abc
4.50a
37.70c
20.60b
5.00
17.70ab
225.50a
101.90ab
4.70a
43.00b
26.40a
10.00
18.00a
226.80a
102.90a
4.80a
47.30a
26.70a
ns
b
b
b
b
b
5
0
16.00c
216.10c
110.50b
4.20c
38.80c
18.00d
2.50
17.80b
230.60b
113.00ab
4.80b
42.20b
21.00c
5.00
19.30a
233.80a
113.60a
4.80b
46.80a
25.80b
10.00
19.80a
234.10a
113.80a
5.40a
49.60a
27.50a
ns
a
a
a
a
a
PM *
*
*
*
*
*
SBE * PM **
**
**
**
**
**
Note: SBE = Spent Bleaching Earth; PM = Pig Manure; ns = not significantly different at LSD (0.05) probability level; * =
significantly at LSD (0.05), ** = Highly significantly at LSD (0.05)
