![](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Healthy_soil_under_25_years_of_Residue_%28five_images%29_%2814627842032%29.jpg/300px-Healthy_soil_under_25_years_of_Residue_%28five_images%29_%2814627842032%29.jpg)
The rotting bits left over when you take what you wanted in the first place... The straw after the wheat is harvested, the fishheads after the fillets are frozen, etc.
- The Use of Organic Residues in Rural Communities (UNU, 1983, 177 p.)
- Bioconversion of Organic Residues for Rural Communities (UNU, 1980, 178 p.)