Hi Jonathan, that is an interesting topic.

As far as I know EDTA has been used extensively for quite a while. I did not know, that microbes struggle to break it down, but I assume there should be some mechanism for breakdown as you ideally want the mineral that it chelated to be released (when applying nutrition to plants), otherwise it would defeat the purpose?

The other thing is as I have it is EDTA is quite pH sensitive. At higher pH’s it’s not as stable that’s why there is also chelating agents such as DTPA, HEDTA and EDDHA etc. So maybe there is a few abiotic mechanisms where it breaks down?

<font face=”inherit”>But if they are quite resistant to breakdown I think this is a big </font>blind spot<font face=”inherit”> currently for the industry. </font>