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| Web URL(s): | http://www.tandfonline.com/doi/pdf/10.1080/1065657X.1997.10701889
Last checked: 10/01/2015
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Stehouwer, Richard C. |
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| Author Affiliation: | School of Natural Resources, Ohio Agricultural Research and Development Center, Wooster, Ohio |
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| Title: | Amendment of acidic coal refuse with yard trimmings compost and alkaline materials: Effects on leachate quality and plant growth |
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| Source: | Compost Science & Utilization. Vol. 5, No. 3, Summer 1997, p. 81-92. |
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| Publishing Information: | Emmaus, PA: JG Press |
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| # of Pages: | 12 |
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| Keywords: | TIC Keywords: Coal; Ground cover; Limestone; Soil amendments; Yard waste; Composts; Alkalinity; Leachates; Acidity; Dactylis glomerata
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| Abstract/Contents: | "Establishment of vegetative cover on coal refuse stabilizes the pile surface and reduces off site deposition of acidic sediments and drainage water. Direct revegetation through the use of by-product amendments would eliminate the need for topsoil cover and provide a beneficial use for by-product materials. This 8 month greenhouse study investigated yard trimmings compost, flue gas desulfurization (FGD) by-product, and agricultural limestone (ag-lime) amendments for direct revegetation of hyper-acidic coal refuse and their effects on leachate and plant quality. Pots (30 cm tall x 15 cm diam) of coal refuse were amended with five rates of compost (0 to 200 g kg⁻¹), with and without sufficient agricultural limestone (ag-lime) to raise refuse pH to 7, and planted with orchardgrass (Dactylis glomerata). Compost increased leachate pH from <2 to 4.4, decreased specific conductance from >17 to <5 mmho cm⁻¹ (due to large decreases in Al, Fe, and S), and decreased leachate concentrations of several trace elements. The pH increase from ag-lime greatly reduced leachate Al, Fe, and S and largely masked any effects of compost addition. Because no plant growth occurred with compost only, after 2 months FGD (200 g kg⁻¹) was added to the upper 1/3 depth of compost-amended coal refuse. The FGD increased refuse pH to the range 4.2 (no compost) to 5.7 (200 g kg⁻¹ compost), decreased leachate Al and Fe, increased leachate B, and allowed vigorous growth of orchardgrass. When combined with FGD, compost increased downward movement of Ca and Mg. Although compost addition decreased plant growth at the first harvest due to N immobilization, application of mineral N fertilizer alleviated this problem in subsequent harvests. Compost did not increase orchardgrass growth when combined with ag-lime. With FGD, however, compost increased orchardgrass growth to levels above that for ag-lime and compost, in spite of increased plant tissue B." |
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| Language: | English |
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| References: | 18 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Stehouwer, R. C. 1997. Amendment of acidic coal refuse with yard trimmings compost and alkaline materials: Effects on leachate quality and plant growth. Compost Sci. Util. 5(3):p. 81-92. |
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| Web URL(s):
http://www.tandfonline.com/doi/pdf/10.1080/1065657X.1997.10701889
Last checked: 10/01/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: TD 796.5 .C584 |
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