NutraSul 90 provides a natural slow release of Sulfate throughout the season.
Application rate is based on agronomic recommendations from soil tests and should also consider crop removal rates of Sulfur.
With Sulfur deficiencies in soil, soluble Sulfate must be applied to high Sulfur-requirement crops such as oil seeds (a blend of NutraSul 90 and Ammonium Sulfate is very effective).
However, if NutraSul 90 is applied regularly as part of a balanced fertility program, Sulfur levels can be maintained without Sulfate.