Ammonium Sulfate Fertilizer 21-0-0

$ 14.99

Ammonium Sulfate is a chemical compound crystalline in nature used primarily to manufacture artificial alkaline soil fertilizers for agriculture.

Ammonium Sulfate is an inorganic water-soluble salt that contains:

  • 21% Nitrogen
  • 24% Sulfur

Ammonium Sulfate's high nitrogen content is what makes it the perfect supplement for nitrogen deficient soils and lawns, alike. Since lawn grass requires nitrogen, commercial lawn fertilizer products use ammonium sulfate to stimulate quick growth of grass turf and healthy lawn grass.

Ammonium sulfate fertilizers easily blend with other nitrogen fertilizers allowing for a more stable, dry-lawn fertilizer. But you'll want to exercise greater caution when using Ammonium Sulfate fertilizers as they can elevate soil acidity to extreme levels that could adversely affect grass or crops.


Ammonium Sulfate Fertilizer Benefits:

  1. Provides efficient nitrogen and readily available sulfur.
  2. Aids in plant growth. 
  3. Nourishes alkaline soils.
  4. High nitrogen content. 
  5. Stimulates growth of plants, turf and lawns.
  6. Easily blends with other nitrogen fertilizers.
  7. Elevates soil acidity.
  8. Water Soluble


Ammonium Sulfate Fertilizer Application Rate:


- Apply 5 pounds per 1,000 sq. ft. or 200 pounds per acre (application at the recommended rates will last about 4 to 6 weeks).


- Broadcast at 5 pounds per 1,000 sq. ft. or 1/2 pound per 100 sq.ft.

Shrubs & Evergreens: 

- Sprinkle 1/4 cup evenly around dripline of plant and work into top 1 inch of soil.


- Apply 1/2 pound per 1 inch of trunk diameter.

-  Distribute evenly under branches out to drip line.


- Mix 1 to 3 tablespoons per gallon of water and spray the leaves with the solution.




Pounds of Ammonium Sulfate Required to Lower pH level per 1000 sq.ft.

 Current Soil pH Level Desired Soil pH Level   Soil Type  
    Sand Loam Clay
8.5 6.5 to 6.8 230 lb.        285 lb. 345 lb.
8 6.5 to 6.8 140 lb. 170 lb. 230 lb.
7.5 6.5 to 6.8 55 lb. 90 lb. 115 lb.
7 6.5 to 6.8 10 lb. 20 lb. 35 lb.



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