Molybdenum enrichment of plants grown on fly ash-treated soils
Alfalfa, bermudagrass, white clover, barley, and Swiss chard (Medicago sativa L., Cynodon dactylon L., Trifolium repens L., Hordenum vulgare L., and Beta vulgaris L., respectively) were grown on calcareous and acid soils treated with fly ash at rates ranging up to 80 g kg/sup -1/. The objectives were to investigate the availability of Mo to crops in relation to rate of fly ash application, type of recipient soil, and time of harvest. Application of fly ash to soil resulted in marked enrichment in plant Mo, especially at rates greater than or equal to 40 g kg/sup -1/. Except for white clover, Mo concentrations in plants grown on the calcareous soil were greater than those in plants grown sequentially indicated the presence of a relatively long-term supply of Mo in fly ash. It is concluded that in situations where soils are deficient in Mo, plants may benefit from small applications of fly ash to soils, but Mo concentrations in plants grown on fly ash-treated soils should always be carefully monitored.
- Research Organization:
- Univ. of California, Riverside
- OSTI ID:
- 5888315
- Journal Information:
- J. Environ. Qual.; (United States), Vol. 36:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CROPS
NUTRITION
FLY ASH
GROUND DISPOSAL
MOLYBDENUM
BIOLOGICAL AVAILABILITY
UPTAKE
COAL
COMBUSTION
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
PH VALUE
SOILS
AEROSOL WASTES
ASHES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DATA
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
MANAGEMENT
MATERIALS
METALS
NUMERICAL DATA
OXIDATION
RESIDUES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
510200* - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)
560303 - Chemicals Metabolism & Toxicology- Plants- (-1987)