What kind of fertilizer is this?
Can you take a picture of the whole bag front and back.
So we can have the brand name, type (model)?
I don't know if this is liquid fertilizer that you don't have to mix with water, or fertilizer you mix with water, or pellet fertilizer that you sprinkle and then water. Maybe I am just not as up on things as everyone else. You sound like you know what you are doing maybe even more than me. Maybe more than some others. I would like to help, but I can't cause I don't know what you are using.
Maybe others do. Maybe they already answered your question. I'm not sure. Lol.
Hope you got what you were looking for! I won't post anymore, unless you ask or post something that I can help with. Happy gardening!