Mixtures of a coal combustion by-product and composted yard wastes for use as soil substitutes and amendments. Final report
Mixtures of coal combustion by-product (CCBP) and yard waste compost (with and without sand), and mixtures of CCBP and soil, were evaluated for use as soil substitutes and amendments for production of container-grown ornamental shrubs and trees, and for establishment and production of forage-groundcover species. Species evaluated were azalea (Rhododendron spp.), burning bush (Euonymous alatus), red maple (Acer rubrum), yew (Taxus spp.), tall fescue (Festuca arundi nacea, cv. {open_quotes}Chesapeake{close_quotes}), alfalfa, and Kentucky bluegrass (Poa pratensis L., cv. {open_quotes}Bronco{close_quotes}). All ornamental species failed to grow when planted in CCBP/compost mixtures when the CCBP concentration was greater than 30 percent by volume. Plant toxicity due to high concentrations of soluble salts and boron was responsible for the poor plant performance. When CCBP was used as a soil amendment at concentrations less than 30 percent, growth of tall fescue and Kentucky bluegrass was not affected by the mixture, and alfalfa yield increased at CCBP mixtures up to 20 percent.
- Research Organization:
- Electric Power Research Inst. (EPRI), Palo Alto, CA (United States); Ohio State Univ. Research Foundation, Columbus, OH (United States)
- Sponsoring Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 395639
- Report Number(s):
- EPRI-TR-106682; TRN: 96:006289
- Resource Relation:
- Other Information: PBD: Aug 1996
- Country of Publication:
- United States
- Language:
- English
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