Price/Ea.
$55.32
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Product Overview
The Peters Professional Acid Special 21-7-7 (E99330) is a water soluble fertilizer that helps in producing healthy and acid loving crops. It has a formula with high potential acidity that lowers pH levels or offsets high water alkalinity in growing media. This fertilizer is the excellent choice for water type 3 and 4. It also contains a great range of micronutrients that's essential to promote greening.
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Details
Active Ingredient Total Nitrogen - 21% Available Phosphate - 7% Soluble Potash - 7% Magnesium - 0.6%, Sulfur - 13.0%, Boron - 0.0262%, Copper - 0.0262%, Iron - 0.15%, Manganese - 0.05%, Molybdenum - 0.01%, Zinc - 0.05% For use in Acid Loving Crops Application 1 tsp per 1 gallon of water (1 tbsp per 2 gallons of water)
* Can be tank mixed for watering cans and spray tanks except injectors
* See label for complete application instructionsColor Blue Material / Construction Ammonium Phosphate, Ammonium Sulfate, Urea, Potassium Sulfate, Magnesium Sulfate, Boric Acid, Copper EDTA, Iron EDTA, Manganese EDTA, Ammonium Molybdate, Zinc EDT Special Features Water Soluble Fertilizer Shipping Weight 25.26 lbs Manufacturer Everris Na Inc. (Mfg. Number: E99330) UPC 848264006792 Produce healthy acid-loving crops with this formula’s high potential acidity that offsets high water alkalinity or lowers pH levels in growing media.
- C (Customizing) component can be used with a variety of B (Base) formulations
- Excellent choice for Water Types 3 and 4
- Contains a full range of essential micronutrients plus extra iron to promote greening
Product Properties:
Potential Acidity .......................... 1518 lbs calcium carbonate equivalent per ton
Conductivity of 100 ppm N ......... 0.52 mmhos/cm
Maximum Solubility ..................... 4 lbs/gallon
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Product Documents
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3 Customer Reviews
Top Reviews
Good response
By Charles on 06/11/2016
We have used Acid Special 21-7-7 for many years on blueberries in pots in the greenhouse with excellent response It gives a rapid response before a dry, slow release becomes available. Order and shipp…
Read Full Review »The Blueberry Person
By Norm on 09/15/2022
This fertilizer is excellent for blueberries. When used every 10 days during the growing season, it is a great stimulant of new plant growth, which increases fruit yield the following year.
Great Stuff
By Plant on 03/21/2025
Peters is the Best Fertilizer in the world. But the Review must be 50 characters long. LOL I thought Great & Best would be enough words. Dr. LWB
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2 Questions & Answers
Helpful Q&A'sQIs there any way to calculate N/gal at a given concentration of Peters Professional Acid Special 21-7-7?AThe product label for Peters Professional Acid Special 21-7-7 states you use 1 tsp of product with 1 gallon of water equals 245 ppm (Parts per Million) of Nitrogen.
Qtrying to kill bandboo from growing backAPeters Professional Acid Special 21-7-7 would not help in eliminating bamboo. Bamboo is very tough to kill and will take repeat applications using a non selective such as Roundup QuickPro. Bambo…
Read Full Answer »Peters Professional Acid Special 21-7-7 would not help in eliminating bamboo. Bamboo is very tough to kill and will take repeat applications using a non selective such as Roundup QuickPro. Bamboo stalks should be cut and apply the non selective herbicide directly to the fresh cut stump.
