The 'fourth macronutrient', along with nitrogen, phosphorus and potassium, Sulphur granular lowers pH in alkaline soils, making them more acidic. Granulated form is easy to handle and makes for a less leachable source of Sulphur. Can be applied with a spreader.
| No. | TEST DESCRIPTION | STANDARDS |
|---|---|---|
| 1 | THE SULPHUR CONTENT, % MIN | 99.95 |
| 2 | MASS FRACTION OF ASH, % NOT MORE THAN | 0.02 |
| 3 | MASS FRACTION OF ORGANIC SUBSTANCES, % MAX | 0.01 |
| 4 | MASS FRACTION OF ACIDS IN RECALCULATION ON SULPHURIC ACID, % MAX | 0.0015 |
| 5 | MOISTURE IN EXCESS, % MAX | 0.5 |
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