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Prairie Seeding Cover Crops

Does anyone have experience using a ReGreen as a cover crop?  It is a winter
wheat/slender wheatgrass hybrid that is supposedly good as a cover crop.  In the
one application I have observed it appears to have had a negative impact upon
native grasses relative to adjacent areas where a cover crop was not used.  So
I'm interested in others experience with this particular product and any
recommendations for appropriate cover crop.  It may well be that the ReGreen was
planted at too heavy a rate as this was the first use at the facility.  However,
the stark contrast between cover crop and no cover crop areas is concerning us.

I can provide some background on why we need a cover crop in this particular
application.  We are working on a large landfill.  The vegetative cover is going
to be warm-season grasses.  But as we know they can take a while to get
established.  In the meantime we need some cover crop to reduce erosion off the
facility.  We are trying to blend our stormwater requirements with our desire to
have a native plant cover on the landfill.  The ReGreen worked very well to
establish quickly with a fall seeding and provide erosion control.  However the
lack of success for the native grasses is concerning.

Any information you can provide would be greatly appreciated.

--
Tom Schneider, Fernald Project Manager
Ohio EPA
Office of Federal Facilities Oversight
tschneid@offo2.epa.state.oh.us
http://offo2.epa.state.oh.us/FERNALD/fernald.htm


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