United States Department of Transportation
i
Evaluation of short statured species for rapid establishment on Mississippi roadsides.
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2014-06-01
[PDF-1.31 MB]
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Abstract:In an attempt to combat the issue of NPS pollution, EPA has started to enforce different
areas of the Clean Water Act of 1972 by requiring construction sites to have 70% vegetative cover in
30 days. The main goal of this research is to identify mixes of warm and cool‐season plants that
establish quickly. A secondary objective is to identify those species that provide good quality and
dense cover that will require minimal maintenance while stabilizing disturbed soils. One question that
must be answered is 30 days from planting or first significant rainfall. Among warm season species
bermudagrass and bahiagrass were found to establish well but failed to reach 70% cover in 30 days.
Among cool season species turf type tall fescue was one perennial specie that established well but not
rapidly enough, its height remained less than 100 mm for much of the growing season and never
exceeded 100 cm. Oil seed radish showed great promise as a year around nurse crop that established
quickly. Sods of hybrid bermudagrass, zoysiagrass, and centipedegrass all provided instant cover that
has lasted more than 2 years
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