Effect of Biochar Particle Size On Plant Growth Part 1
25:16
How to Charge Biochar
20:10
Charcoal in Cone Pit vs Drum Tort
12:51
Maybe Humans Should Not Go to Mars Yet
30:49
The truth about America's most "invasive" plant
8:36
Finally Making Biochar
11:12
Humic Acid and Biochar Rooting Mass- Must See!!
20:41
What is Terra Preta? Hint: It's not just Biochar
18:55