In hydroponics, the following substances and compounds are present in the nutrient solution (liquid fertilizer). To estimate the amount you need to monitor, whether through titration, test strips, or other analytical methods, here's an overview of the concentrations you should expect in the analysis:
An overview of the analysis techniques and further details can be found here .
Measurement / Magnitude |
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|
K |
potassium |
0.5 - 10 mmol/L |
|
Ca |
calcium |
0.2 - 5 mmol/L |
|
S |
sulfur |
0.2 - 5 mmol/L |
|
P |
phosphorus |
0.1 - 2 mmol/L |
|
Mg |
magnesium |
0.1 - 2 mmol/L |
|
Fe |
iron |
2 - 50 µmol/L |
|
Cu |
copper |
0.5 - 10 µmol/L |
|
Zn |
zinc |
0.1 - 10 µmol/L |
|
Mn |
manganese |
0 - 10 µmol/L |
|
B |
boron |
0 - 0.01 ppm |
|
Mon |
molybdenum |
0 - 100 ppm |
|
NO 2 |
nitrite |
0 – 100 mg/L |
|
NO. 3 |
nitrate |
0 – 100 mg/L |
|
NH4 |
ammonia |
0.1 - 8 mg/L |
|
KNO 3 |
potassium nitrate |
0 - 500 ppm |
|
Ca(NO 3) 2 |
Calcium nitrate |
0.1 - 500 ppm |
|
NH4H2PO4 |
Ammonium dihydrogen phosphate |
0 - 500 ppm |
|
(NH 4) 2HPO 4 |
Diammonium hydrogen phosphate |
0 - 500 ppm |
|
MgSO4 |
Magnesium sulfat |
0 - 500 ppm |
|
Fe-EDTA |
Ethylenediaminetetraacetic acid |
0 - 500 ppm |
|
H 3BO 3 |
Boric acid |
0 - 500 ppm |
|
KCl |
Potassium chloride |
0 - 500 ppm |
|
MnSO4 |
Manganese (II) sulfate |
0 - 500 ppm |
|
ZnSO4 |
Zinc sulfate |
0 - 500 ppm |
|
CuSO4 |
copper sulfate |
0 - 500 ppm |
|
MoO 3 |
Molybdenum oxide |
0 - 500 ppm |
