Am I missing something?

I've checked out a bunch of 20-20-20 salts recently, and when I check the guaranteed analysis it's never 20-20-20.

Here's one of like 7 I've checked today that don't add up.


so this is 20:9:17 Another was 18:11:14, another 20:6:13.

Am I missing something? It's not really critical, but I could be missing something obvious.

Another inconsistency on that Peter's...says it's a foliar application at the top, and then says for peat based mediums down the bottom. Maybe I just get confused easily lol.

that's just the water soluble content, the missing values you are looking for are coming from non-water soluble sources....like all those leftover uncut feathers you see in ferts somtimes.

I'll figure it out eventually lol.