How to apply ammonium sulfate

Written by hollan johnson
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Ammonium sulphate is a commonly used fertiliser for lawns. It provides the grass with much-needed nitrogen to help it grow well. Nitrogen is one of the fertilisers that lawns and other plants need. The fertiliser number for ammonium sulphate is 21-0-0. This means it is 21 per cent nitrogen with 0 per cent phosphorus and potassium. Apply ammonium sulphate only when there is a need for nitrogen-only fertilisation.

Skill level:

Things you need

  • Compost
  • Rake

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  1. 1

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

  2. 2

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

  3. 3

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

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