Download PDF document - Permaculture Research Institute
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One Pair of Hot Boxes can sanitize 30-42 households per week<br />
- Making Terra Preta in 90 days –<br />
Contains Bio char<br />
Howards work was carried out 100 years ago<br />
Higgins has expanded this work for modern day applications<br />
Micro farm showing from weeds to abundant crops in<br />
3 months without ploughing<br />
The exact number will be determined<br />
In Kampala this summer with SuSan Design<br />
Bagged Terra Preta for sale<br />
at £1.00 per Kilo, in UK