Table 5 Composition of materials used for experimental Terra Preta formation.
From: Terra Preta production from Ghanaian and Zambian soils using domestic wastes
Material | Quantity (w/w) | |
|---|---|---|
% | kg | |
Soil | 50–60 | 10–12 |
Kitchen leftovers | 15–30 | 3–5 |
Urine | 5–7 | 1.4 |
Poultry/Pig manure | 5 | 2.0 |
Ash | 5 | 0.6 |
Rice husk biochar | 5 | 1.0 |
Charcoal residues | 5 | 1.0 |
Total weight (kg) | 100 | 20 |
