| Parameters |
N levels at different stocking densities |
| |
7,500/ha |
10,000/ha |
12,500/ha |
| Inputs |
Kg/ha |
% |
Kg/ha |
% |
Kg/ha |
% |
| Inflow water |
1.20 ± 0.05 |
0.94 |
1.20 ± 0.05 |
0.92 |
1.20 ± 0.05 |
0.9 |
| Cow dung |
36.75 ± 2.25 |
28.83 |
36.75 ± 2.25 |
28.22 |
36.75 ± 2.25 |
27.66 |
| GOC |
17.50 ± 1.50 |
13.73 |
19.32 ± 1.60 |
14.83 |
20.93 ± 1.70 |
15.75 |
| RP |
6.57 ± 0.23 |
5.15 |
7.18 ± 0.32 |
5.51 |
7.77 ± 0.33 |
5.85 |
| Urea |
64.37 ± 3.37 |
50.5 |
64.37 ± 3.37 |
49.41 |
64.37 ± 3.37 |
48.46 |
| Stocked fish |
1.09 ± 0.10 |
0.85 |
1.45 ± 0.15 |
1.11 |
1.82 ± 0.20 |
1.38 |
| Total input |
127.48 ± 2.68 |
100 |
130 ± 2.12 |
100 |
132.84 ± 3.26 |
100 |
| Output |
|
|
|
|
|
|
| Effluent water |
2.40 ± 0.10 |
1.85 |
3.00 ± 0.16 |
2.3 |
3.36 ± 0.17 |
2.53 |
| Harvested fish |
54.99 ± 3.11 |
43.18 |
45.25 ± 3.10 |
34.74 |
32.08 ± 2.82 |
24.15 |
| Sediment accumulation |
52.50 ± 4.45 |
41.18 |
60.50 ± 5.66 |
46.44 |
66.42 ± 6.12 |
50 |
| Others |
17.59 ± 2.21 |
13.79 |
21.52 ± 2.32 |
16.52 |
30.98 ± 3.02 |
23.32 |
| Fcal= 54.41, Ftab = 5.14 at 5% level, CD = 5.41 |
|
