These figures belong to the named source and method. Historical costs are not current quotations. A value without its stage, material basis or measurement location is not a farm instruction.
| What is measured | Value and basis | Source and limitation |
|---|---|---|
| Moisture and pH of finished compost | 68-72; 7.2-7.8 %; pH | ICAR-DMR manual, 2011. Long-method compost; Phase II compost is 64 to 66 percent. |
| Free ammonia at spawning | 8-10 ppm maximum | ICAR-DMR manual, 2011. Do not infer concentration from smell; use a validated measurement method. |

