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Effects of incubation and liming on yield and heavy metal uptake by rye from sewage-sludged soil

Journal Article · · J. Environ. Qual.; (United States)
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Rye (Secale cereale L., var. Balboa) was grown under controlled conditions on Evesboro sandy loam amended with digested secondary sewage sludge. Our purpose was to measure plant yield and uptake of Cd, Cu, Pb, and Zn as functions of sludge application rate (0 to 10 percent, dry weight basis), sludge origin (Baltimore, Md., and Washington, D.C.), pH of soil-sludge mixture (two levels), incubation time between mixing and planting (0 to 7 weeks), and plant age (three clippings). Plant yields from successive clippings decreased as sludge application rates increased. Uptake of the four metals increased with sludge additions and with plant age, in the order Zn greater than Cd greater than Pb approximately equal to Cu. Metal uptake decreased in the order Zn greater than Cd greater than Pb greater than Cu with addition of lime. Incubation considerably diminished Cu and Pb uptake. All observations point to organic matter complex formation in the order Cu greater than Pb greater than Zn greater than Cd. The relative uptake of HCl-extractable Cd from soil was greater than that of Zn, especially upon liming, while the total uptake of these metals then decreased.
Research Organization:
Agricultural Environmental Quality Inst., Beltsville, MD
OSTI ID:
5063125
Journal Information:
J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 6:4; ISSN JEVQA
Country of Publication:
United States
Language:
English

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Related Subjects

553000* -- Agriculture & Food Technology
560303 -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
60 APPLIED LIFE SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
BIOMASS
CADMIUM
CEREALS
COPPER
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL EFFECTS
FERTILIZERS
GRAMINEAE
GRASS
LEAD
METALS
PH VALUE
PLANTS
PRODUCTIVITY
RENEWABLE ENERGY SOURCES
RYE
SEWAGE
SEWAGE SLUDGE
SOILS
TRANSITION ELEMENTS
UPTAKE
WASTES
ZINC