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U.S. Department of Energy
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Vegetation establishment on soil-amended weathered fly ash

Conference ·
OSTI ID:361695
;  [1];  [2]
  1. Univ. of Kentucky, Lexington, KY (United States)
  2. East Kentucky Power Cooperative, Winchester, KY (United States)
A field study was conducted with the following objectives in mind: (1) to study the effect of soil addition to weathered fly ash on the establishment and survival of different grasses and legumes, (2) to identify suitable grasses and/or legume species for vegetation of fly ash, (3) to study the fertilizer N and P requirements for successful vegetation establishment on fly ash and ash-soil mixtures, (4) to examine the nutrient composition of the plant species tested, and (5) to study the plant availability of P from fly ash and ash-soil mixtures. Three rooting media were used: weathered fly ash, and 33% or 50% soil blended with the ash. Four experiments were established on each of these media to evaluate warm season grasses in pure stands, warm season grasses inter-seeded with legumes, cool season grasses, and cool season grasses inter-seeded with legumes. Soil used in this study was more acidic than the fly ash. Only the results from characterization of the rooting media, ground cover, and yield will be presented here.
OSTI ID:
361695
Report Number(s):
CONF-9805185--
Country of Publication:
United States
Language:
English