Table 1 Fertilizer type and amount used to make 1000 L of nutrient solution.
Fertilizer type | Amount (g/1000 l) | N (mg/l) | P (mg/l) | K (mg/l) | Ca (mg/l) | Mg (mg/l) | |
|---|---|---|---|---|---|---|---|
N-NO3 | N-NH4 | ||||||
Monoammonium phosphate (NH4H2PO4) | 169 | – | 20 | 45 | – | – | – |
Calcium nitrate (5Ca(NO3)2-NH4NO3.10H2O), Agricultural grade | 631 | 91 | 7 | – | – | 120 | – |
Potassium nitrate (KNO3) | 246 | 32 | – | – | 93.5 | – | – |
Magnesium sulfate (MgSO4.7H2O) | 440 | – | – | – | – | – | 40 |
Potassium sulfate (K2SO4) | 73 | – | – | – | 31.5 | – | – |
Total elemental concentration (mg/l) | 150 | 45 | 125 | 120 | 40 | ||
