Section R. 285.623.206 - Red clover and alfalfa; field and seed standardsRule 206.
(1) Red clover or alfalfa seed shall be planted on land on which the same crop has not been previously grown for a minimum of 5 years for producing foundation seed and 2 years for producing certified seed. During the year immediately before seeding, the land shall be in a cultivated crop or fallow and shall be free of volunteer red clover or alfalfa plants as determined by field inspection. Manure or other contaminating amendments shall not be applied during the established and productive life of this stand.(2) Any portion of a field that is not to be inspected shall be mowed before flowering.(3) Limitations on the age of stand and pedigree classes of seed through which a variety may be multiplied shall be specified by the originator, but shall not exceed the limitations that are established by the certifying agency.(4) Field standards for red clover and alfalfa seed are as follows: | Factor | Foundation | Classes of Seed Certified |
| Other varieties or off-types (maximum) | none | 0.2% |
| Other crops (maximum) | none | 1 plant per acre |
| Isolation (from other red clover or | | |
| alfalfa fields respectively) (minimum) | 900 ft. | 165 ft. |
(5) Seed standards for red clover and alfalfa seed are as follows: | Factor | Foundation | Classes of Seed Certified |
| Pure seed (minimum) | 99.0% | 99.0% |
| Inert matter (maximum) | 1.0% | 1.0% |
| Weeds (maximum) | 0.15% | 0.2% |
| Prohibited noxious (maximum) | none | none |
| Docks, sheep sorrel, and restricted | | |
| noxious (maximum) | 9 per pound | 45 per pound |
| Other crops (maximum) | 18 per pound | 0.2% |
| Sweet clover (maximum) | 9 per pound | 45 per pound |
| Other varieties or off-types | | |
| (maximum) | 0.1% | 1.0% |
| Germination and hard seed (minimum) | | 85.0% |
Mich. Admin. Code R. 285.623.206