Table 3. Suggested fertilization guide for mullet farming under
different different stocking densities (No./ha/year)/ total biomass of fish
(kg/ha) |
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Type of fertilizers |
Stocking rate |
Rate of application (kg/ha/year) |
Frequency (No./month) |
Method of application |
Organic fertilizers |
|
|
|
|
Cow manure |
|
7 500 |
|
For inland saline (13�21 ppt) water ponds (a) |
In China |
Pig and cow manure |
1.5�3.0 million/ha (only larval rearing) |
750 (before stocking) |
|
Larvae are stocked when
enough zooplankton (mostly copepods and rotifers) have grown (b) |
Inorganic fertilizers |
|
|
|
|
In Egypt |
Superphosphate |
|
216�240 |
1 |
In brackish water ponds for Mugil capito (c) |
Amonium nitrate |
|
216 |
Organic and inorganic
fertilizers |
|
|
|
|
In Egypt |
Cow manure |
|
3840 |
2 |
Fish were stocked in cages in polyculture with
Nile tilapia (d) |
Superphosphate |
|
620 |
Urea |
|
930 |
In Egypt |
Cow manure |
5 800 fish/ha (35g/fish) |
1 000 (before filling) |
0 |
Cow manure applied by broadcast method before
filling and other fertilizers applied biweekly after fish were stocked
(e) |
Chicken manure |
520 (after stocking) |
2 |
Urea (46% N) |
52 |
2 |
Superposphate (32% P2O5) |
52 |
2 |
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Data source:
(a) Garg et al. (2006), (b) Zheng (1987), (c) Tacon (1987), (d) Essa (1996),
(e) Abd El Ghany et al.
(1995) |
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