I have not read any organic guidelines since the USDA took them over, although I worked against allowing sewer sludge (and that other thing we won't mention out of the cider press) as a field dressing I really haven't noticed new things added to the OMRI list and I avoid the garden isle generally.
I always followed California's guidelines back when and had a copy at one time.
So I'm behind on what is accepted and what is not and have been taken aback that some Miracle G... products are now accepted under USDA Organic standards. My own standards follow along the 'beyond organic' practices of permaculture.
Here's a link to those products accepted in the US and in Canada...the symbol meanings are at the bottom of the page
https://www.omri.org/ubersearch/results/Miracle%20Gro?type[]
I have brand name aversion. They (miracle....) have always represented the worst gardening practices in my mind so I'm having a hard time accepting that they have suddenly got on the organic bandwagon...money perhaps?
Does anyone know what is actually in the accepted plant 'food'?
I think by the time I was done with this it's probably 'ulcer factory' material, please move if anyone feels the urge