Published January 1966. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
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...
