We Update Daily!
Custom Search
Chris S. Kenoyer. Owner MMJ Patient, Medical Activist, Online Patients Advocate, Online MMJ News Journalist
My Medical Bio
Follow Us Now On Twitter @MedicalMMJMan
Or Follow Us Now On Facebook
Email Us Here olpwebs@yahoo.com
Or Email Us Securely Here MedicalMMJMan@countermail.com NEW 100% Encrypted Email Server
OLP’s Free MMJ News EList Get The Latest In MMJ News
Press Contact Info
Is CBD? A Possible Cure For Breast Cancer..? And All The Other Many Forms & Types Of Cancer..? Learn More About CBD Here
***************************
Advertise Here On OnlinePot Rates As Low As $50 a Year 24/7 – 365 Days A Year Of Sales!
***********************************
Website Navigational Links
Main Start Page 2
**************************
Latest Marijuana News Reports
*********************************
Parody’s Cartoons US Government Grown Pot, Term Papers, School Reports, & Thesis’s On Marijuana & Cannabis *********************************
Amsterdam A to Z ********************************
Canadian Marijuana Websites *******************************
Church’s & Pot Cannabis
*****************************
Co-Ops, Clinics, Dispensary’s *****************************
Marijuana Doctors & Clinics ****************************
Pot Cooking Recipes ****************************
Drug Testing A To Z ***************************
Pot Games
****************************
Pot Songs Video’s ****************************
100’s Of Grow Guides ***************************
Hash A- Z
***************************
Cannabis Legal Info, Drug Lawyers, State, Federal Laws, State & Supreme Court Rulings **********************
POW’s Of The MMJ War!
*****************************
Other Marijuana Websites Reciprocal Link Exchange ****************************
Medical Marijuana Studies, Research Report’s, Medical Cannabis Clinic Study’s ****************************
Parody’s & Cartoons When We All Need A Good Laugh!
****************************
Avoiding Online MOM Scammers Newly Re-Updated Info! *****************************
The Politics Of Contraband Medical Marijuana In The Mail? ******************************
The Hall Of Shame Section The Online MOM Scammers *****************************
Online MOM Providers Ads ****************************
Politicians & Voters Rights ****************************
Medical Marijuana, Strains ****************************
The OG Marijuana Strain Guide ****************************
800+ FAQ Growing Questions ****************************
Patients Spiritual Guidance, Free Online Crisis Help Center ****************************
Online Marijuana Seed Banks ****************************
Maximum Security Section Just Updated! *****************************
Traveling Tips, Guides, B & B’s ****************************
Vaporizers A To Z *****************************
Online Pot Video’s & Movies **********************************************
Please Visit Both Of Our Sister Websites!
Maine Patients Coalition.org
The Reefer Madness Teaching Museum.org
Listen Right Here Online! To Original 1930-1950’s Reefer Madness Propaganda Radio Shows And Programs Before TV There Were "Radio Stars"
*********************************
Legal Disclaimer
Guest Book
Translate Text or Web Page Go To: Language Tools Google Translations
Article Submissions & News Reports Are Always Gladly Accepted Here.
No part of this site maybe used or reproduced in whole or in part without the written consent of the Copyright Owner www.onlinepot.org
OLP ENTERPRISES L3C 1999-2014 Copyright © All rights reserved
OnlinePot assumes no legal liability for any products, or information or news posted, services offered, Or any contests or give away’s offered.
|
|
Converting Fertilizer NPK ratings to PPM and Teaspoons per Gallon
Return Back To OnlinePot’s Grow Guides Main Grow Page#1 Or Main Grow Page#2
One can estimate the parts per million in solution (ppm) produced by a quantity of fertilizer in a gallon of water, based on the fertilizer’s N-P-K rating.
For each number in the rating apply the following formula:
> one teaspoon (5ml) of a given fertilizer in a gallon of water (10xN)÷ 0.768 = ppm
> one tablespoon (15ml) of fertilizer in a gallon of water:
(10xN)÷ 0.256 = ppm
Example: Peter’s Professional All-Purpose Fertilizer with N-P-K rating of 20-20-20.
(10x20)÷.768=260.4 ppm
Therefore, one teaspoon (5ml) of Peter’s Professional All-Purpose 20-20-20 in one gallon of water will produce a solution that contains approximately 260.4 ppm of Nitrogen, 260.4 ppm of P (P2O5), and 260.4 ppm of K (K2O) for a TOTAL ppm of approximately 781.3 .
Explanation
It’s important to understand that with the term "parts per million," we are expressing a measurement in terms of a RATIO, which, like miles per hour or pounds per square inch, is a relation in degree or number between two separate measurements. "Parts per million" is a common way of expressing the measurement of the dilution of something in solution, which for our purposes here, is the dilution of fertilizer components in water. It just so happens that fertilizer N-P-K ratings are also ratios, as is the measurement of teaspoons per gallon.
Parts per million is most often alternately expressed as milligrams per liter because it’s so easy to convert due to the efficiency of the metric system: 1000 milligrams = 1 gram and 1000 grams of water = 1 liter; 1 thousand x 1 thousand = 1 million; voilá- parts per million.
Fortunately, the "parts" in "parts per million" are generic. It can be parts of a teaspoon just as easily as it can be parts of a gram. N-P-K ratios are also generic expressions of percentage, or parts per hundred. Unfortunately, 1 gallon does not equal 1 thousand teaspoons; it takes 768 teaspoons (or 256 tablespoons) to equal one gallon. But by knowing this, one ratio can be converted into the terms of another ratio, which is what the formulas above do.
Remember,
Before relying on these formulas to fertilize your grow, you should be absolutely aware that N-P-K ratings don’t necessarily precisely describe the amount of each nutrient in the fertilizer, but instead describe the minimum amount of nutrient to be found, as explained in Mr.Ito’s excellent FAQ on the subject.
The only way to know for certain the ppm of your fert mix solution is to measure it’s EC, with an electronic TDS meter as you mix it. If this isn’t possible, at the very least try to use only high-quality fertilizer brands with reputations for their accuracy and consistency of their analyses and products.
| |