A comparison of cadmium and zinc accumulation by four cultivars of barley grown in sludge-amended soils
- Univ. of California, Riverside
A greenhouse experiment was conducted to compare the plant-tissue accumulation of Cd and Zn by four cultivars of barley (Hordeum vulgare L.) grown on three soils amended with 20 and 100 t/ha dried Imhoff tank sludges. Results indicated that metal uptakes by four cultivars of barley (Barsoy, Briggs, Florida 103, and Larker) were not significantly different when they were grown on both sludge-treated and non-sludge-treated (control) soils. The Cd and Zn concentrations of the plant tissue from sludge-treated soils, however, were significantly influenced by the sludge application and the soil type. For four cultivars of barley grown on the Ramona sandy loam soil, the Cd content of grain averaged <0.04 (<0.04-0.03) ..mu..g/g at the control and increased to 0.38 (0.19-0.53) ..mu..g/g at the 100-t/ha sludge treatment. Under the same conditions, the average Zn concentrations of barley grain were 41, 67, and 92 ..mu..g/g for the control, 20-t/ha, and 100-t/ha treatments, respectively. Both soil texture and pH influenced Cd and Zn contents of barley. Crops grown on the Domino loam soil (fine, mixed, thermic Xerollic Calciorthid) accumulated the least amounts of Cd and Zn. At heavy sludge applications, higher levels of plant-tissue Cd and Zn were often found in barley grown on soils of coarser texture (Ramona sandy loam (fine, mixed, thermic Typic Haploxeralf) and Greenfield sandy loam (coarse, mixed, thermic Typic Haploxeralf)) and lower pH (Ramona sand loam, pH = 6.0).
- OSTI ID:
- 5822088
- Journal Information:
- J. Environ. Qual.; (United States), Vol. 11:3
- 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.
BARLEY
BIOLOGICAL ACCUMULATION
CADMIUM
SEWAGE SLUDGE
GROUND DISPOSAL
ZINC
BENCH-SCALE EXPERIMENTS
LAND POLLUTION
ROOT ABSORPTION
SOIL CHEMISTRY
SOIL MECHANICS
SOILS
TISSUE DISTRIBUTION
ABSORPTION
CEREALS
CHEMISTRY
DISTRIBUTION
ELEMENTS
GRAMINEAE
GRASS
MANAGEMENT
MECHANICS
METALS
PLANTS
POLLUTION
SEWAGE
SLUDGES
UPTAKE
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
510200* - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)
560303 - Chemicals Metabolism & Toxicology- Plants- (-1987)