Is Honeywell Sulf-N ammonium sulfate used for its nitrogen content or its sulfur content?
Both. As a sulfur source, Sulf-N ammonium sulfate supplies S in the readily available sulfate form. As a nitrogen source, Sulf-N ammonium sulfate is extremely efficient because all of its nitrogen is in the ammonium form, which resists losses from leaching, volatilization and denitrification. Because Sulf-N ammonium sulfate supplies both of these vital nutrients in a form that is immediately usable to plants, it is a cost-effective choice.
