Poinsettia Nutrition - Table 4

Table 4. Fertilizer sources for pointsettia production

Name & Formula of Material
N-P-K
Analysis Others
Ammonium Chloride
NH4Cl
25-0-0
0
Ammonium Nitrate
NH4NO3
33.5-0-0
0
Ammonium Phosphate (di)
(NH4)2HPO4
21-53-0
0
Ammonium Phosphate (mono)
NH4H2PO4
11-48-0
1.4% Ca, 2.6% S
Ammonium Sulfate
(NH3)2SO3
20-0-0
24% S
Calcium Nitrate
Ca(NO3)2
15-0-0
37% S
Sodium Nitrate
NaNO3
16-0-0
0
Urea
CO(NH2)2
45-0-0
0
Urea-Formaldehyde
38-0-0
0
Superphosphate
CaH4(PO4)2
0-20-0
18% Ca
Treble Phosphate
CaH4(PO4)2
0-42-0
12% S
Phosphoric Acid
H3PO4
0-52-0
12% Ca
Potassium Chloride
KCl
0-0-62
0
Potassium Nitrate
KNO3
13-0-44
0
Potassium Sulfate
K2SO4
0-0-53
0
MagAmp-Magnesium
7-40-6
18% S
Ammonium Phosphate
0
0
Magnesium Sulfate
MgSO47H2O
0
10% Mg
Magnesium Nitrate
Mg(NO3)2 6H2O
0
9.5% Mg
Gypsum
CaSO42H2O
0
23% Ca
Manganese Sulfate
MnSO4
0
28% Mn
Boric Acid
H3BO3
0
17% B
Copper Sulfate
CuSO45H2O
0
25% Cu
Iron Sulfate
FeSO47H2O
0
20% Fe
Iron Chelates
0
Various % Fe
Ammonium Molybdate
(NH4)6 Mo7O22H2O
0
53% Mo
Zinc Sulfate
ZnSO47H2O
0
36.4% Zn

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