| Materials | % Removed |
| Ephemeral plants | 40% - 80% |
| Dead roots-ephemeral plants | 50% - 70% |
| Perennial grass | 60% - 90% |
| Dead grass roots | 60% - 70% |
| Shrub leaves | 0% - 90% |
| Dead wood | <1.0% - 5.0% |
| Cattle dung | 60% - 100% |
| Rabbit dung | 15% - 50% |