|
F/2 (ppm)
|
Daigo IMK (ppm)
|
Sewage water (ppm)
|
Liquid fertilizer (ppm)
|
---|
Phosphate
|
3.46
|
3.66
|
4
|
200
|
Nitrate
|
54.7
|
146
|
(7)
|
0
|
Nitrite
|
0
|
0
|
0.5
|
0
|
Ammonium
|
0
|
0.92
|
18
|
3000
|
- Seawater prepared with sea salts enriched with F/2 medium and with Marine Art SF-1 enriched with Daigo IMK medium and both media subjected to analysis after preparation, values for F/2 and Daigo IMK calculated from their respective recipes, liquid fertilizer diluted tenfold with pure water and centrifuged at 6500×g for 10 min to precipitate suspended materials before analysis, and nitrite presence somewhat disturbed nitrate determinations in sewage water (indicated by parentheses)