https://www.researchgate.net/figure...8-days-of-drought-The-left-pot_fig6_322644078
I was gonna post this over in my thread because I though it interesting to have a pot as an experiment. See if I need make any more..
Dave; I'm not sure how this correlates to my statement, however I do think there is benefit to adding small char pieces to a worm bin/pile. I need to point out that it appears the authors of the article you linked have glossed over the contribution of carbon to the atmosphere from wood burning and subsequent effecting of global climate changes. Atmospheric quality is exactly the reason wood burning is regulated in many areas. When making char one should use a good design so as to minimize this contribution. A very hot oxygen deprived fire is essential. [IMO]
https://www.atmos-meas-tech.net/4/1409/2011/amt-4-1409-2011.pdf