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Sulfur-containing fertilizers and their approximate composition.
| Fertilizer | Percentage of Sulfur |
|---|---|
| Ammonium sulfate | 24 |
| Ammonium thiosulfate | 26 |
| Elemental sulfur | >90 |
| Gypsum (calcium sulfate) | 19 |
| Potassium magnesium sulfate | 23 |
| Potassium sulfate | 18 |
This data was adopted from Purdue University Department of Agronomy, as soil fertility update.37
