Nitrogen fixation (acetylene reduction) by annual winter legumes on a coal surface mine
Book
·
OSTI ID:5163113
The winter annuals, crimson clover, rose clover, subterranean clover and hairy vetch, were evaluated for their ability to fix nitrogen on coal surface mine substrates by measuring their ability to reduce acetylene to ethylene. The effects of fertilizer, Abruzzi ryegrass, Kentucky 31 fescue grass and a phytotoxic plant Chenopodium album on nitrogen fixation was also assessed. Crimson clover was recommended as the best legume to use on topsoil and shale in the South. Hairy vetch gave good results on shale and subterranean clover did well on topsoil. The use of these species for revegetation is discussed. Overall, no correlation between substrate pH and ethylene levels was found and effects of substrate depended upon the legume species. Super phosphate fertilizer supported less nitrogen fixation than 13-13-13. Abruzzi ryegrass in some unknown way inhibited plant density and nitrogen fixation by legumes but not by free living substrate micro-organisms. Shale from under dead Chenopodium plants in both field and greenhouse experiments did not inhibit nitrogen fixation. 11 references, 7 tables.
- OSTI ID:
- 5163113
- Country of Publication:
- United States
- Language:
- English
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Nitrogen fixation (Acetylene Reduction) by annual winter legumes on a coal surface mine
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
510500 -- Environment
Terrestrial-- Site Resource & Use Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACETYLENE
ALKENES
ALKYNES
CEREALS
CHEMICAL REACTIONS
CLOVER
COAL MINES
DATA
ETHYLENE
EXPERIMENTAL DATA
FERTILIZERS
GRAMINEAE
GRASS
HYDROCARBONS
INFORMATION
LAND RECLAMATION
LEGUMINOSAE
MINES
MINING
NITROGEN FIXATION
NUMERICAL DATA
ORGANIC COMPOUNDS
PLANTS
REDUCTION
REVEGETATION
RYE
SURFACE MINING
UNDERGROUND FACILITIES
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
510500 -- Environment
Terrestrial-- Site Resource & Use Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACETYLENE
ALKENES
ALKYNES
CEREALS
CHEMICAL REACTIONS
CLOVER
COAL MINES
DATA
ETHYLENE
EXPERIMENTAL DATA
FERTILIZERS
GRAMINEAE
GRASS
HYDROCARBONS
INFORMATION
LAND RECLAMATION
LEGUMINOSAE
MINES
MINING
NITROGEN FIXATION
NUMERICAL DATA
ORGANIC COMPOUNDS
PLANTS
REDUCTION
REVEGETATION
RYE
SURFACE MINING
UNDERGROUND FACILITIES