Gain access to personalized product screening, the best pricing, rewards, and more!
Create An Account, Or Sign In.
NeuAG
APF Ammonium Sulfate 21-0-0 Fertilizer
APF Ammonium Sulfate 21-0-0 Fertilizer is a rich, free, free-flowing granular fertilizer with sulfur that significantly improves soil fertility, plant growth, and greener color in foliage.
As low as
$59.43
Only %1 left
SKU
APF Ammonium Sulfate 21-0-0 Fertilizer Product Page
Min : 59.43 - Max : 59.43
Price as of
09/21/25
09/21/25
Price Transparency
See how our pricing compares to other online retailers for this item.
APF Ammonium Sulfate 21-0-0 Fertilizer, manufactured by NeuAG, is an easy-to-use fertilizer that promotes a quick, long-lasting green color in plants within lawns, flowers, and gardens.
It is formulated with a non-leaching ammoniacal nitrogen of 21% and chemically compounded with sulfate sulfur 24%, which helps to promote a quick nutrient release for depleted foliage.
APF Ammonium Sulfate 21-0-0 Fertilizer is an excellent water-soluble granule fertilizer that works effectively on various plant sites.
Tools Needed
You will need a handheld spreader or broadcast spreader.
How to Use
- Step 1: Determine how much APF Ammonium Sulfate 21-0-0 Fertilizer to use by measuring the square footage of the treatment area. To do this, measure the length and width of the treatment area in feet, then multiply them together (length X width = square footage). Apply 5 lbs. of APF Ammonium Sulfate 21-0-0 Fertilizer per 1,000 sq. ft. of turfgrass and ornamentals. For flowers, shrubs, and hedges, use 0.5 lbs. of product per 100 sq. ft. For shade trees, and/or fruit and nut trees, apply 0.5 lbs. of product per inch of the trunk's diameter.
- Step 2: Load your spreader with the measured amount of APF Ammonium Sulfate 21-0-0 Fertilizer. Calibrate your spreader based on its type. Begin walking back and forth across the treated area, being careful to avoid product overlap. To avoid this, it would be best to start from the outer perimeter and then walk across the middle of the treatment area.
- Step 3: After application, treated water areas thoroughly with APF Ammonium Sulfate 21-0-0 Fertilizer.
Where to Use
Apply APF Ammonium Sulfate 21-0-0 Fertilizer to established turf, high-nitrogen crops such as corn, potatoes, and onions, flowers, shrubs, hedges, shade trees, and fruit and nut trees.
Do not topdress tomatoes, squash, watermelons, and especially beans.
When to Use
Use when the plants are dry and when foliage is well-established, such as late spring or early summer.
Safety Information
APF Ammonium Sulfate 21-0-0 Fertilizer is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.
Do not let people or pets enter treated areas until 24 hours have passed after application.
Special Considerations
APF Ammonium Sulfate 21-0-0 Fertilizer may require multiple reapplications as it's not a slow-release formulation.
| Availability | Online |
| Restricted Use | No |
| Shipping Restrictions | 50 Pound: AK, CT, HI, MI, NJ, OR, RI, SC |
| Brand | NeuAG |
| Keith's Pro Tips | " To avoid fertilizer burn, never apply the fertilizer to wet grass and always water in after the application." |
| Product Drawbacks | APF Ammonium Sulfate 21-0-0 Fertilizer will not last long on treated areas. |
| Application Equipment | Hand Spreader, Push Spreader |
| Application Methods | Broadcast Spray, Spot Treatment |
| Active Ingredient | Nitrogen 21.0%, Phosphate .00%, Soluble Potash .00%, and Sulfur 24.00%. |
| Product Type | Fertilizer |
| Formulation | Granular |
| Application Rate | Apply 5 lbs. of APF Ammonium Sulfate 21-0-0 Fertilizer per 1,000 sq. ft. of turfgrass and ornamentals. For flowers, shrubs, and hedges use 0.5 lbs. of product per 100 sq. ft. For shade trees, and/or fruit and nut trees, apply 0.5 lbs. of product per inch of the trunk's diameter. |
| Shelf Life | APF Ammonium Sulfate 21-0-0 Fertilizer will last up to 3 years when stored in a dry, clean location. |
| Yield | 50 lbs. of APF Ammonium Sulfate 21-0-0 Fertilizer will cover up to 5,000 sq. ft. |
| Use Sites | Outdoors |
| Time to Kill | APF Ammonium Sulfate 21-0-0 Fertilizer will take several days to witness results. |
| Comparable Products | Hi-Yield Ammonium Sulfate 21-0-0 |
| EPA Registration # | N/A |
| Restricted Use | No |
|---|---|
| Shipping Restrictions | AK, CT, HI, MI, NY, OR, RI, SC |
| Availability | Online |
| Keith's Pro Tip | " To avoid fertilizer burn, never apply the fertilizer to wet grass and always water in after the application." |
| Time to Kill | APF Ammonium Sulfate 21-0-0 Fertilizer will take several days to witness results. |
| Chemical Type | Fertilizer |
| Formulation | Granular |
| Application Methods | Broadcast Spray, Spot Treatment |
| Product Drawbacks | APF Ammonium Sulfate 21-0-0 Fertilizer will not last long on treated areas. |
| Active Ingredient | Nitrogen 21.0%, Phosphate .00%, Soluble Potash .00%, and Sulfur 24.00%. |
| Application Equipment | Hand Spreader, Push Spreader |
| Mix Rate | Apply 5 lbs. of APF Ammonium Sulfate 21-0-0 Fertilizer per 1,000 sq. ft. of turfgrass and ornamentals. For flowers, shrubs, and hedges use 0.5 lbs. of product per 100 sq. ft. For shade trees, and/or fruit and nut trees, apply 0.5 lbs. of product per inch of the trunk's diameter. |
| Use Sites | Outdoors |
| Yield | 50 lbs. of APF Ammonium Sulfate 21-0-0 Fertilizer will cover up to 5,000 sq. ft. |
| EPA Registration No. | N/A |
| Shelf Life | APF Ammonium Sulfate 21-0-0 Fertilizer will last up to 3 years when stored in a dry, clean location. |
| Comparable Products | Hi-Yield Ammonium Sulfate 21-0-0 |
| Children or pets? | No |
| Property Characteristics | None |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.