The objective of this study was to examine the potential of using big blue stem (Andropogon gerardii), and partridge pea (Chamaecrista fasiculate), a grass and legume prairie species native to Illinois, and vermicompost to establish vegetation soil contaminated with biodiesel.
Seedlings of big bluestem and showy partridge pea were germinated in peat-based potting media and grown for 42 days at which time plug height was recorded.
Both big bluestem and showy partridge pea were able to survive being transplanted into soil contaminated with 5g biodiesel [kg.
Height and percent increase from transplant of the showy partridge pea at DAT 49 was 3.
The addition of B100 tended to reduce shoot and root fresh and dry weights of big bluestem and showy partridge pea (Tables 3 and 4).
Showy partridge pea produced much less plant biomass than big bluestem (Tables 3 and 4).
Because big blue stem produced from approximately 7 to 32 times more roots on a dry weight basis than showy partridge pea, it appears to have a greater potential to enhance remediation than showy partridge pea.
The addition of vermicompost to biodiesel contaminated soil tended to reduce plant growth, especially with the partridge pea, when compared to plants grown in contaminated soil without added vermicompost.
Both big bluestem and showy partridge pea grew in soil contaminated with 5 g biodiesel kg-1 soil and may be useful at restoring vegetation of contaminated soils.