How to Apply Ammonium Sulfate

Ammonium sulfate is a commonly used fertilizer for lawns. It provides the grass with much-needed nitrogen to help it grow well. Nitrogen is one of the fertilizers that lawns and other plants need. The fertilizer number for ammonium sulfate is 21-0-0. This means it is 21 percent nitrogen with 0 percent phosphorus and potassium. Apply ammonium sulfate only when there is a need for nitrogen-only fertilization.

Things You'll Need

• Compost
• Rake

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Instructions

1. • 1

     Mix about 6 ½ lbs. of ammonium sulfate per 1,000 square feet of lawn with an equal amount of compost.

   • 2

     Sprinkle the mixture over the lawn. Rake over the lawn to work it into the soil under the turf.

   • 3

     Water the lawn well for 10 to 15 minutes following the application of ammonium sulfate to avoid burning the lawn.