SKU: 18170886964
ammonium sulfate plant fertilizer

ammonium sulfate plant fertilizer 21-0-0 Ammonium Sulfate Lawn Fertilizer

Sale price$24.13 Regular price$26.81
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

ammonium sulfate plant fertilizer 21-0-0 Ammonium Sulfate Lawn FertilizerFast Acting Nitrogen with Added Sulfur Ideal for High pH Soils. 21 0 0 Ammonium Sulfate delivers 21% fast release nitrogen along with 24% sulfur, making it an excellent choice for lawns that need quick green up while improving nutrient availability in alkaline soils. This is a preferred nitrogen source for experienced lawn enthusiasts and professionals who want reliable performance without the volatility concerns of urea. Why Choose Ammonium Sulfate

Fast-Acting Nitrogen with Added Sulfur — Ideal for High pH Soils.

21-0-0 Ammonium Sulfate delivers 21% fast-release nitrogen along with 24% sulfur, making it an excellent choice for lawns that need quick green-up while improving nutrient availability in alkaline soils.

This is a preferred nitrogen source for experienced lawn enthusiasts and professionals who want reliable performance without the volatility concerns of urea.


Why Choose Ammonium Sulfate Over Urea?

  • Lower volatilization risk compared to urea
  • Helps lower soil pH over time in alkaline soils
  • Improves iron availability for deeper green color
  • Excellent for spoon-feeding programs
  • Fully soluble for liquid applications

If you have high pH soil or struggle with yellowing turf despite fertilizing, ammonium sulfate is often the better nitrogen source.


Best Used For

  • Correcting nitrogen deficiency
  • Summer feeding programs
  • High pH or alkaline soils
  • Liquid lawn applications
  • Boosting color before events or peak growth periods

Application Rates

Maximum recommended nitrogen rate: 1 lb N per 1,000 sq ft per application.

  • 18 lbs. covers up to 7,560 sqft
  • 50 lbs. covers up to 21,000 sqft.

Water in after application for best results.


Liquid or Granular

  • Dissolves easily for spray applications
  • Can be applied granular with a broadcast spreader

Looking for controlled-release nitrogen? Consider our professional blended fertilizers for longer feeding and reduced burn risk.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18170886964

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Draper, US
★★★★★ 5
Fit great
Size: Large, Color: (100) White / White / Halo Gray
Been a couple of months and they seem to be holding up nicely. Real picky about fit of socks and these fit well. They are very thin but very comfortable.
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Reviewed in the United States on October 21, 2024
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Broussard Household.
Massapequa, US
★★★★★ 5
Always a win
Size: Large, Color: (001) Black / Black / Castlerock
Under armor is always a win! Comfortable, no peeling, true to size, no squeezing around the arch of foot & affordable.
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Reviewed in the United States on January 4, 2026
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Lake Worth, US
★★★★★ 4
Fit well and stay up
Size: Large, Color: (299) City Khaki / City Khaki / White
They're a little thin, so good mainly for warmer months. But they fit very well and I've not experienced any slippage
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Reviewed in the United States on March 17, 2026
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Gustavo Garcia
Whiting, US
★★★★★ 5
Llego a tiempo
Size: X-Large, Color: (001) Black / Black / Castlerock
Bien
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Reviewed in the United States on April 28, 2026
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ViperMageEx
Houston, US
★★★★★ 3
Low quality socks.
Size: Large, Color: (001) Black / Black / Castlerock
I have been buying Under Armour undergarments for years and have noticed a steady decline in quality. These socks are no different. I purchased another six packs of very similar styled Under Armour socks in 2023 and recently they have started wearing out. Those socks are no longer available for reorder, but these extremely similar socks were so I ordered them. The quality difference is obvious just by looking at and feeling them. They are more of a faded black/brown than the black pictured or the black that the three year old socks still are. The material is completely different and feels lighter. When wearing them they already feel like they are bunching up in my shoes, which the old ones never did. I do not expect these to last even a year and will not buy them again.
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Reviewed in the United States on March 29, 2026

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