Abstract:
Seed processors now use magnetic cleaning to remove noxious weed
seeds and other contaminants from smooth crop seeds like those of
alfalfa. In the present practice, the contaminant allowances permitted for
certified seeds are frequently exceeded, or high crop losses are sustained
in meeting the standard. The importance of iron powder fineness, moisture
level, and technique was determined and used to specify materials and
procedures that improve efficiency in magnetic separation of seeds.
