SKU: 15552185346
20-20-20 organic liquid fertilizer

20-20-20 organic liquid fertilizer Jack's Professional 20-20-20 General Purpose Fertilizer – Greenhouse Megastore

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Description

20-20-20 organic liquid fertilizer Jack's Professional 20-20-20 General Purpose Fertilizer – Greenhouse MegastoreThe general purpose industry standard, 20 20 20 is great for maintaining plants in garden center and growing facilities. It provides fast green up and great foliar expansion due to the high percentage of ammonium and urea nitrogen plus balanced phosphorus and potassium for excellent root and shoot growth. For Use On: All outdoor grown plants Growers Who Want: Acidic formula, balanced NPK ratio Mixing Instructions Chart displays the amount of dry

The general-purpose industry standard, 20-20-20 is great for maintaining plants in garden center and growing facilities. It provides fast green-up and great foliar expansion due to the high percentage of ammonium and urea nitrogen plus balanced phosphorus and potassium for excellent root and shoot growth.

For Use On: All outdoor grown plants

Growers Who Want: Acidic formula, balanced NPK ratio

Mixing Instructions

Chart displays the amount of dry fertilizer (oz.) to add to each gallon of water to make a concentrated solution. Please check your injector setting before use.

Desired N Feed Rate Injector Setting E.C. Value (mmhos)
1:15 1:100 1:200
50 ppm .5 3.38 6.75 .22
100 ppm 1.0 6.75 13.5 .44
200 ppm 2.0 13.5 27.0 .87

Limit of Solubility in Hot Water = 4 lbs per gallon

Important Notes

E.C. value is the best method to determine fertilizer strength. Fertilizer appearance may vary in color due to variation in raw material size and tracer dye distribution upon the particles in the bag. In solution, color will remain consistent.

For best results, use warm water to dissolve product. Jack's fertilizers are made with 100% soluble raw materials that will form a true solution. Some raw materials are slower to dissolve than others. Keep stock tank covered to reduce light and debris inputs.


Additional Information

Jack's Professional 20-20-20 MSDS (PDF)


Specifications

Total Nitrogen (N)....................................... 20%

3.83% Ammoniacal Nitrogen
6.07% Nitrate Nitrogen
10.1% Urea Nitrogen


Available Phosphate (P2O5)....................... 20%
Soluble Potash (K2O)................................. 20%
Magnesium (Mg)......................................... 0.05%

0.05% Water Soluble Magnesium (Mg)


Boron (B).................................................... 0.0068%
Copper (Cu)................................................ 0.0036%

0.0036% Chelated Copper (Cu)
Iron (Fe)...................................................... 0.05%

0.05% Chelated Iron (Fe)
Manganese (Mn)......................................... 0.025%

0.025% Chelated Manganese (Mn)
Molybdenum (Mo)....................................... 0.0009%
Zinc (Zn)...................................................... 0.0025%

0.0025% Chelated Zinc (Zn)
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SKU: 15552185346

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Verified Purchase
JAN
Omaha, US
★★★★★ 5
Excellent resource for students
Format: Paperback
The practice tests are extremely helpful and are easy to implement in our study schedule.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 14, 2024
A
Verified Purchase
Anonymous
West Palm Beach, US
★★★★★ 5
Great practice
Format: Paperback
Excellent complement to the Foundations book
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Reviewed in the United States on August 26, 2024
E
Verified Purchase
Erik
Cuba, US
★★★★★ 5
This is the book you are looking for.
Format: Paperback, Format: Paperback
After searching through about four different vocab books, I finally found one I can truly vouch for: Robert's Extremely Nerdy Guide to Digital SAT Vocabulary. Robert is actually my daughter’s SAT tutor and recommended this book. At the time, my daughter had almost given up on the vocab portion of the SAT—there were only 7 weeks left to the test date (we’re now down to just 2 weeks). Honestly, what can you achieve in that short time? Still, I decided to buy it—what did we have to lose? Because I’d already gone through so many SAT vocab books, I knew a good one when I saw it. Just flipping through the first few pages convinced me this was the right fit, and my daughter immediately got to work. The book starts with 6 sections on word roots, then moves into 26 sections of similar-meaning words. Each chapter includes a matching activity (which my daughter finds essential for retention) and ends with SAT-style practice questions. Since using this book, she spends much more time memorizing and testing words. I only wish we had discovered it earlier so she could have had more time to digest and apply what she’s learning. Before this, she was getting about 50% of vocab questions right on a good day; now, after just over a month with this book, she’s averaging 80–90%. As a side note, I’m not a native English speaker, and I’ve also learned so many words by reviewing her answers. Almost every word I’ve come across in the past and thought, “I should look this up someday” seems to be in this book—a testament to why the SAT brought vocabulary back for the digital test. This book has served my family extremely well, and I plan to start my youngest child on it earlier. Get this book, and start early.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2025
J
Verified Purchase
John M McDowell
Draper, US
★★★★★ 5
Fantastic categories for SAT vocab
Robert’s vocab book has been a fantastic addition to my tutoring resources. My students love the ease of progression through the short chapters. It is helping tremendously with vocabulary comprehension in addition to his mock tests.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2025
S
Verified Purchase
Sinai J. Flottman
West Palm Beach, US
★★★★★ 5
Look no further.
Format: Kindle, Format: Kindle
After searching through about four different vocab books, I finally found one I can truly vouch for: Robert's Extremely Nerdy Guide to Digital SAT Vocabulary. Robert is actually my daughter’s SAT tutor and recommended this book. At the time, my daughter had almost given up on the vocab portion of the SAT—there were only 7 weeks left before her test date (we’re now down to just 2 ½ weeks). Honestly, what can you achieve in that short time? Still, I decided to buy it—what did we have to lose? Because I’d already gone through so many SAT vocab books, I knew a good one when I saw it. Just flipping through the first few pages convinced me this was the right fit, and my daughter immediately got to work. The book starts with 6 sections on word roots, then moves into 26 sections of similar-meaning words. Each chapter includes a matching activity (which my daughter finds essential for retention) and ends with SAT-style practice questions. Since using this book, she spends much more time memorizing and testing words. I only wish we had discovered it earlier so she could have had more time to digest and apply what she’s learning. Before this, she was getting about 50% of vocab questions right on a good day; now, after just over a month with this book, she’s averaging 80–90%. As a side note, I’m not a native English speaker, and I’ve also learned so many words by reviewing her answers. Almost every word I’ve come across in the past and thought, “I should look this up someday” seems to be in this book—a testament to why the SAT brought vocabulary back for the digital test. This book has served my family extremely well, and I plan to start my youngest child on it earlier. Get this book, and start early.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 27, 2025

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