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 |
|---|---|---|
| Button spawn rate | 0.5-0.7 % of wet compost | ICAR-DMR manual, 2011. The farmer folder says 500-750 g per 100 kg compost. |
| Shiitake grain spawn rate | 3 % of dry weight | ICAR-DMR shiitake folder. Added under sterile conditions after autoclaving the bag. |

