Terra Preta und Biokohle
12/31/2015 12:27
Hier sind einige spannende Dokus über Terra Preta:
- TERRA PRETA - Amazon (BBC): https://www.youtube.com/watch?v=-YS8I6AZRfg
- The Secret Of Eldorado - TERRA PRETA: https://www.youtube.com/watch?v=0Os-ujelkgw
- Making Biochars For Small Farms: https://www.youtube.com/watch?v=dqkWYM7rYpU
Gruss,
Koost