No

No what?

You linked a source saying that ammonium sulfate and potash are different and have different functions…

Which is what I said:

But we need all three in specif percentages, we can’t just use any combination, they don’t do the same thing…

I don’t understand what you’re trying to disagree with, or what “assumptions” you’re talking about?

The only assumption I made was that you were talking about ammonia, but if that’s what you meant your link makes zero logical sense…

What are you trying to say?