Nitrogen-fixing in Agroforestry

Robert G. Weinberger hr161 at cleveland.Freenet.Edu
Sun Feb 4 01:19:04 EST 1996

Red Alder *Alnus rubra* has shown some slight nitrogen fixing properties.
Although not too long ago it was considered a weed species, it is
now in some cases being grown in rotation with Douglas-fir - both for
its nitrogen fixing properties and , more importantly, it now is
marketable & has value in its own right.                              

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