|
|
|
FERTILIZERS
|
Commercial Fertilizers
|
| Element |
N |
P |
K |
S |
Mg |
| Analysis
refers to
|
Nitrogen
|
Phosphate
|
Potash
|
Sulphur
|
Magnesium
|
| Common
Sources :
|
| Ammonium
Sulphate
|
20.6% |
|
|
24% |
|
| Ammonium
sulphate nitrate
|
26% |
|
|
15% |
|
| Urea |
46% |
|
|
|
|
| Ammonium
phosphate |
20% |
20% |
|
|
|
| Di-ammonium
phosphate |
18% |
46% |
|
|
|
| Single
superphosphate |
|
16% |
|
11.9% |
|
| Triple
superphosphate |
|
43% |
|
|
|
| Dicalcium
phosphate |
|
42% |
|
|
|
| Rock
phosphate |
|
20-24% |
|
2.3% |
|
| Muriate
of potash |
|
|
60% |
|
|
| Potassium
sulphate |
|
|
50% |
16-22% |
|
| Gypsum |
|
|
|
18% |
|
| Pyrites |
|
|
|
22-24% |
|
| Phosphogypsum |
|
|
|
11% |
|
| Magnesium
sulphate |
|
|
|
13% |
9.88% |
| Micronutrients
(common sources) : |
| |
B |
Mo |
Zn |
S |
Mn |
| Borax |
11.3% |
|
|
|
|
| Boric
Acid |
17% |
|
|
|
|
| Manganese
sulphate |
|
|
|
15-17% |
26-28%
|
| Zinc
sulphate |
|
|
23-25% |
11-18% |
|
| Zinc
chelate |
|
|
9-14%
|
|
|
| Molybdic
Acid |
|
40%
|
|
|
|
|
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