| Record | It helps establish | It cannot establish alone |
|---|---|---|
| Air temperature chart | Conditions at the air sensor | Temperature at every point in the compost |
| Mapped compost readings | Spatial variation and response | All aspects of maturity or hygiene |
| Ammonia assessment | One release criterion under the chosen method | A complete quality certificate |
| Crop result linked to batch | How the delivered batch performed in context | That compost caused every later crop problem |
In the field
Compare the evidence
