Table 1.
Yield (kg DM/rai) and chemical composition (dry matter basis) of
Pennisetum purpureum
cv Mott received
different levels of nitrogen fertilizer (kg N/rai).
Nitrogen levels (kg/rai)
Biomass
DM
CP
NDF
ADF
1
st
cut (60 days after planting)
0
617
c
20.02
6.62
b
72.68
43.82
8
648
bc
19.49
6.54
b
70.21
44.13
16
857
bc
20.67
8.81
ab
72.46
42.69
32
897
ab
18.72
10.32
a
72.43
42.38
64
1,148
a
17.75
10.63
a
70.94
42.95
SEM
84
1.29
0.81
1.30
1.34
Significance
**
Ns
**
Ns
ns
Regrowth (30-day interval)
1
0
183
c
20.95
6.65
b
70.15
43.42
8
252
b
21.00
6.97
b
70.86
44.20
16
268
b
22.15
7.27
b
69.86
43.08
32
331
a
21.94
7.12
b
71.62
43.16
64
349
a
22.05
8.30
a
73.61
45.72
SEM
18
0.83
0.30
1.13
0.70
Significance
***
Ns
*
Ns
ns
Total biomass production
0
1,350
d
8
1,657
cd
16
1,930
bc
32
2,221
b
64
2,545
a
SEM
104
Significance
***
1
average from 4 cuts, DM; dry matter, CP; crude protein, NDF; neutral detergent fiber, ADF; acid detergent fiber, SEM;
standard error of the mean, N = 4, ***; p<0.001, **; p<0.01, *; p<0.05, ns; non-significance
164
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