SKU: 6424768382
best fertilizer for onions plants

best fertilizer for onions plants Ammonium Sulfate Fertilizer 10 Pounds

Sale price$21.55 Regular price$23.94
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Description

best fertilizer for onions plants Ammonium Sulfate Fertilizer 10 PoundsOur Ammonium Sulfate fertilizer is the perfect blend for growing onions, garlic, elephant garlic, shallot and leeks. These crops are heavy feeders, meaning they require significant amounts of nutrients (nitrogen and sulfur) and water throughout their initial growth phase. Allium species (onions, garlic, elephant garlic, shallots and leeks) generally have two growing phases throughout the life of the plant. The first phase is called the "vegetative

Our Ammonium Sulfate fertilizer is the perfect blend for growing onions, garlic, elephant garlic, shallot and leeks. These crops are heavy-feeders, meaning they require significant amounts of nutrients (nitrogen and sulfur) and water throughout their initial growth phase.

Allium species (onions, garlic, elephant garlic, shallots and leeks) generally have two growing phases throughout the life of the plant. The first phase is called the "vegetative phase." During the vegetative phase, plants are focused on maximizing foliage or green growth. This foliage will then be used to synthesize sugars and form the bulb that will be harvested in the second stage. As such, the second stage is appropriately named the "bulbing phase."

The more foliage that is generated during the vegetative stage, the larger the bulb that will be produced during the bulbing stage. In onions and shallots, each leaf represents a ring on the eventual bulb. Therefore it is important to provide the nitrogen and sulfur needed to get as much leaf growth as possible during the vegetative stage. This will result in large bulbs and bountiful harvests.

Ammonium Sulfate provides a fast-acting source of nitrogen and sulfur. Used as a side-dress, sprinkle the fertilizer to the side of the plants without getting it on the plant leaves. 

Ammonium Sulfate Use Recommendations

Begin applications three weeks after transplanting. Repeat every 3-4 weeks. Side-dress 1 cup per 20 linear feet of row. When side-dressing, always water immediately after feeding.

Guaranteed Analysis

  • Total Nitrogen (N) - 21.0%
    • Ammoniacal Nitrogen - 21.0%
  • Sulfur (S) - 24.0%
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SKU: 6424768382

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A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 1
Save your money- don’t buy
Style: SPF 50, Size: 6 Fl Oz (Pack of 2)
Purchased this for our trip to Mexico. At two cruise ports we were doing a combination snorkel and pool day. I got this sunscreen because it was reef friendly and came with two bottles. Both bottles were IMPOSSIBLE to spray. You could not sunscreen yourself because you had to hold the bottle just right, push down with extreme force, and have your fingers place very specifically on the lid. My 13 year old and husband couldn’t even use the bottles. I did figure it out so I had to continually sunscreen everyone in the family. No one in my family has sensitive skin, but we all ended up with a fine rash after using this sunscreen. On days prior we used another brand and no one had a problem. We also reapplied often (every 60-90 min) and we still got pretty burnt. Maybe we got a bad batch…
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Reviewed in the United States on April 2, 2023
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Verified Purchase
Lacy
Waukegan, US
★★★★★ 5
Go-To for Reef-Safe & Light-Weight Sunscreen
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
Favorite sunblock to travel with. Appreciate the simplicity of it, and the fact that it rolls on and rubs in smooth. Of course the iconic scent is also a plus.
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Reviewed in the United States on May 18, 2026
J
Verified Purchase
Jenny J
New York, US
★★★★★ 5
Great choice
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
After I suffered a second-degree burn from steam, I was told by my doctor that I would have to keep my new fresh skin sun-blocked for up to a year to avoid any scarring or hyper pigmentation. This has been a great selection as it is a roll-on, Which helps a lot with preventing messes that can happen with traditional sunblock bottles. I also like that it is easy to travel with, and the fact that it is zinc based.
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Reviewed in the United States on August 26, 2025
A
Verified Purchase
A reader
Chelsea, US
★★★★★ 5
My favorite new mineral sunscreen!
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
This is my favorite new mineral sunscreen! I've been searching for years for a product that is easy to apply, not messy, and doesn't show up too white. This roll-on is the perfect solution. I keep it near the front door and quickly roll the sunscreen on my hands, arms, and chest before leaving the house. The sunscreen applies so quickly and uniformly-- there are no bare spots or messy globs to rub in. Also, the roll-on keeps the sunscreen from oozing out of the tube and getting all over everything. Finally, the roll-on method also eliminates the frustration of having half-filled tubes and pumps where you can't even access the sunscreen when the tube gets low. Here's hoping this doesn't happen with the roll-on. Thank you Sun Bum for creating this wonderful product. I also love the reasonable price.
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Reviewed in the United States on October 24, 2025
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Verified Purchase
Cathy mccann
Port Orchard, US
★★★★★ 5
great product - it must be blended in well
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
Love this stuff. The roll-on makes it easy to apply on the go. It leaves a white streak unless you blend it in. I don't mind the white streak - at least I know I applied the product.
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Reviewed in the United States on February 4, 2026

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