NTFP: ginseng
Lewis Melville
lmelvill at uoguelph.ca
Tue Dec 8 08:51:11 EST 1998
: The slow-growing root, once harvested in the Northwest, is seeing a renewal of
: interest and a rapidly growing market in the United States.
Ginseng is also mycorrhizal (VAM). One shouldn't forget to
mention that when grown in monoculture, ginseng is very vulnerable to
attack by root rot, especially Cylindrocarpon destructans, which can take
out an entire crop in days, making it a very high risk crop. The disease
vectors remain in the soil seemingly forever, and a farmer can't use the
same patch of soil for growing ginseng once a crop has been harvested,
because the likelihood of disease skyrockets. As a result of the disease
risk, farmers tend to dump tons of anti-fungal chemicals onto their
crops. It is also an extremely high maintenance crop, requiring special
sunshading.
Mind you, intercropping ginseng in its natural environment (Carolinian
forest) may eliminate the need for chemicals and minimize the likelihood
of disease. Yields go way down, though.
cheers. lew
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