Frequency of manure application
Classification structure
| Code | Title |
|---|---|
| 1 | At least once a year |
| 2 | Once every 2 years |
| 3 | Once every 3 years |
| 4 | Less than once every 3 years |
| 5 | Some cropland never received manure |
- Date modified:
| Code | Title |
|---|---|
| 1 | At least once a year |
| 2 | Once every 2 years |
| 3 | Once every 3 years |
| 4 | Less than once every 3 years |
| 5 | Some cropland never received manure |