Iron

[Pat James]

 I have been reading here where chelated iron is a major issue. Maybe not major as compared to  the nitrification process, but significant anyway.

Is there a way to produce your own plant-available iron WITHOUT buying  commercial supplements?

[Dan Kindall]

Sylvia, American Clayworks in Denver has EDDHA and DTPA.

[Sylvia Bernstein]

Beauty!  Thanks, Dan...we're on it...!

[RW]

Here's a sunflower plant with iron deficiency. I'd like to add it to the list as a canary plant. The rest of my plants in this system aren't nearly as yellow.