[uts]

I can def say that using iron does make a difference. I have an acidic pH but the iron still gives it a burst of dark green color after spraying. I'm not sure what exactly it is but it does. It's worth a try for a few dollars.

 

[uts]

There are lots of them. The most common chelated powder form is FEature and Mainevent. Easily dissolvable and does not stain. It's probably the easiest thing that I know.

You can also get all the products in Feature/mainevent and mix them together and do it for less.

This thread has an awesome amount of information.

https://thelawnforum.com/viewtopic.php?f=24&t=211