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Cheryl from Austin, Tx writes

Is there any way to calculate N/gal at a given concentration of Peters Professional Acid Special 21-7-7?

Answer:

The 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.

Answer last updated on: 02/28/2016

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