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 |
|---|---|---|
| Straw chop length | 5-8 cm | ICAR-DMR manual, 2011. freshly harvested material, before stacking |
| Wheat straw nitrogen | 0.6 % of dry weight | ICAR-DMR manual, 2011. table value; one worked example uses 0.40 |

