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 |
|---|---|---|
| Carbon dioxide | 10000-15000 ppm | ICAR-DMR manual, 2011. Full recirculation, no fresh air. |
| Spawn-run duration | 12-14 days | ICAR-DMR manual, 2011. The farmer folder gives 12 to 15 days. |

