Found a good resource explaining how to do soil/compost chromatography testing - a very interesting and accessible way of doing qualitative analysis without having to consult a lab.

https://docs.google.com/document/d/16o3MZ1gSZrKonGIeAGA3LIpZR9menu3ii2xjuzf3cjw/edit

Hoping to be able to get someone to present about this at the gathering.

--
In order to change an existing paradigm you do not struggle to try and change the problematic model / You create a new model and make the old one obsolete / That, in essence, is the higher service to which we are all being called. // Buckminster Fuller