Ammonium sulfate is a well-known inorganic compound with the chemical formula (NH₄)₂SO₄, widely used worldwide as a nitrogen-sulfur fertilizer. It is produced in both powdered and granular forms, and due to its 21% nitrogen and 24% sulfur content, it plays a key role in plant growth and improving soil quality.
Ammonium Sulfate Composition
(Based on weight percentage)
Chemical Formula: (NH₄)₂SO₄
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Nitrogen (N): 20.5% ± 0.5
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Sulfur (S): 23.5% ± 0.5
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Maximum Free Sulfuric Acid: 0.03%
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Maximum Moisture Content: 0.5%
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Heavy Metals: 0.0%
| N Nitrogen Fertilizers | Total Nitrogen | Nitrogen as Ammonium | Suitable for Saline & Alkaline Soils | Easy Transport & Storage | Mixability with Urea |
|---|---|---|---|---|---|
| Urea Phosphate | 18% | 0 | ✓ | - | - |
| Ammonium Sulfate | 21% | 21% | ✓ | ✓ | ✓ |
| Urea | 46% | 0 | - | ✓ | - |
| Ammonium Nitrate | 34% | 17% | - | - | - |
| Diammonium Phosphate | 18% | 18% | - | ✓ | ✓ |
| S Sulfur Fertilizers | Total Sulfur | Sulfur as Sulfate | Solubility in Water | Easy Transport & Storage | Mixability with Urea |
|---|---|---|---|---|---|
| Granular Sulfur | 90% | - | - | ✓ | ✓ |
| Ammonium Sulfate | 24% | 24% | ✓ | ✓ | ✓ |
| Calcium Sulfate | 17–18% | 17–18% | - | - | - |
| Sulfur Enriched with Phosphate | 10–15% | 5–7.5% | - | ✓ | ✓ |
| Sulfur-Coated Urea | 15–20% | - | - | ✓ | - |
The amount of Ammonium Sulfate fertilizer for different crops varies depending on soil conditions, plant type, and growth environment,
and following these guidelines leads to higher yields and better growth.In orchards, especially in early spring, about 1 kg of Ammonium Sulfate per tree is recommended
to provide sufficient energy for bud break, flowering, and fruit formation.
In agricultural fields, before planting, typically 300 to 400 kg of Ammonium Sulfate per hectare is applied
to enrich the soil and prepare it for cultivation.
In home gardens and green spaces, about 25 grams of Ammonium Sulfate per square meter is used
so that plants receive essential nutrients.
In pots, for each plant, only about 15 grams of Ammonium Sulfate is sufficient
to nourish the roots and keep the plant healthy and vibrant.
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