Heavy metal toxicity to crops grown in sewage sludge amended soil

Journal Article · Sat Jan 01 04:00:00 EST 1972 · Agron. Abstr.; (United States)

OSTI ID:6166753

Chaney, R L

A number of crop species were grown on Evesboro loamy sand amended with 5% peat, 5% digested sewage sludge, or Zn (186 mg/kg) + Cu (66 mg/kg) equivalent to that added with sludge, each at pH 5.5 and 6.5. Plants grown on the sludge or metal amended soil were chlorotic and/or stunted. Tomato varieties used as indicator plants showed these symptoms resulted from B, Zn, and Cu toxicities and revealed lethal interactions between them. These toxicities were pH dependent and were expressed more strongly on low C.E.C. soils. Differences in varietal tolerance to metal excess was observed in several species. A rapid pH lowering of sludge-soil mixtures occurred after an initial short-term pH rise. Heavy metal toxicity was always more severe at lower pH. The pronounced effect of pH on corn and chard uptake of metals was not reflected by chelate extraction of the soils.

• Research Organization: Dept. of Agriculture, Beltsville, MD
• OSTI ID: 6166753
• Journal Information: Agron. Abstr.; (United States), Journal Name: Agron. Abstr.; (United States) Vol. 64; ISSN AGABB
• Country of Publication: United States
• Language: English

Related Subjects

510200 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL ACCUMULATION
BIOLOGICAL VARIABILITY
BORON
CEREALS
CHLOROSIS
COPPER
ELEMENTS
FOOD
FRUITS
GRASS
GROUND DISPOSAL
HERBS
LEAVES
MAIZE
MANAGEMENT
METALS
PATHOLOGICAL CHANGES
PH VALUE
PLANTS
SEMIMETALS
SEWAGE
SEWAGE SLUDGE
SLUDGES
SOILS
TOLERANCE
TOMATOES
TOXICITY
TRANSITION ELEMENTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
ZINC