Griffin Greenhouse & Nursery Supplies: Technical Support

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Technical Support - Mix Calculators - Peters® Professional®

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How To Use:
1. Select your "Injector Ratio" from the "Ratio" drop down menu to the left, and your Parts Per Million (PPM) from the drop down labeled "PPM" which will then reflect your setup on the "ppm Nitrogen" bar.

2. Locate the "Percent Nitrogen" of your fertilizer.

Correct values will be displayed as "Oz. of Peters Professional® per Gallon of Concentrate" and "Approx. Gallons of Water Needed to Dissolve one 25 lb. bag."

For smaller measures, please reference the Volumetric Measuring chart located here.

Rate Calculator

Injector Ratio

Percent Nitrogen

	4%	5%	7%	9%	10%
Oz. of Peters Professional® per Gallon of Concentrate
Approx. Gallons of Water Needed to Dissolve one 25 lb. bag*

	12%	13%	15%	16%	18%
Oz. of Peters Professional® per Gallon of Concentrate
Approx. Gallons of Water Needed to Dissolve one 25 lb. bag*

	20%	21%	24%	25%	30%
Oz. of Peters Professional® per Gallon of Concentrate
Approx. Gallons of Water Needed to Dissolve one 25 lb. bag*

* Maximum solubility may be exceeded, check package label.
- Exceeds maximum solubility, not recommended.

Disclaimer: Although every effort has been made to ensure that the information provided is correct, Griffin takes no responsibility in activities associated with the information.

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