Crop Rotation and soil coverage
- At least 5-year crop rotation, including 1 year of legume (pea, bean, etc.). Multi-species cover crop counts as one crop.
- At least 75% of living plant coverage index. This means that on average, fields should have crops growing at least 9 months of the year. Winter crops and cover crops can be used to achieve this crop coverage.
- Residue should be left on the field or replaced respectively with manure to avoid nutrient loss.