Question about fertilizer and PPM measurement

[Ray]

Originally Posted by Alvaro78

I have attached more data of my water quality but sadly I cannot really translate it but I think most names are similar in english.

By dividing the N by 9.2 the result I get are the grams I would be using for fertilizer? In this case it would be 0.77g per liter I don't know how much it would change if it was grams instead of ml as you suggested.

One last question do you think I should reduce the amount of times I fertilize (every watering) when winter comes?

Thanks a lot!!

That’s not much more helpful from a plant nutrition standpoint, I’m afraid, but it’s still good water.

Yes, I meant ml, not grams, for fertilizer estimation.

Mass is certainly the more precise way of measuring - a ppm is 1 mg/kg, so my recommendation is 100 mg/kg of solution, but most folks can measure volume more conveniently, and estimating powders at 1g/ml density isn’t going to be far enough “off” to make a significant difference that that final concentration.