Heavy metals uptake from contaminated soils as affected by peat, lime, and chelates
Heavy metal contamination of soils may reduce yields as well as the suitability for consumption of crop growth (Keeney et al., Leeper). In an effort to find possible ways to counter this danger, the effect of lime, chelating agents, and peat applied to Zn-, Cu- and Pb-contaminated soils on the uptake of metal ions were studied. Pot experiments with barley (Hordeum vulgare L.), perennial ryegrass (Lolium perenne) and Italian ryegrass (Lolium multiflorum) plants and soils, humic podzols (haplohumads) contaminated with Zn (3030 mg kg/sup -1/) and with Pb, Zn and Cu (110, 630, and 40 mg kg/sup -//sub 1/, respectively) were carried out. The concentration of the acid extracts of soils and plants were determined with the aid of the simultaneous direct reading spectrograph and atomic absorption. In all cases, raising the pH of the soil by liming appeared to be the most efficient method for reducing plant absorption of toxic micronutrients and heavy metals. However, the uptake of Fe and Mn was more markedly dependent on pH than that of Zn and Cu.
- Research Organization:
- Volcani Center, Bet Dagen, Israel
- OSTI ID:
- 5004768
- Journal Information:
- Soil Sci. Soc. Am. J.; (United States), Journal Name: Soil Sci. Soc. Am. J.; (United States) Vol. 49:2; ISSN SSSJD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Absorption and translocation of 4-(trifluoromethyl)chlorobenzene in soil and crops
Plant uptake of trace elements from coal gasification ashes. [L. multiflorum Lam]
Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION SPECTROSCOPY
BARLEY
CEREALS
CHELATES
COMPLEXES
COPPER
DATA
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL EFFECTS
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GRASS
GROWTH
INFORMATION
IRON
LEAD
LIMING
MANGANESE
METALS
NUMERICAL DATA
ORGANIC MATTER
PEAT
PH VALUE
PLANT GROWTH
PLANTS
RYE
SOILS
SPECTROSCOPY
TRANSITION ELEMENTS
UPTAKE
ZINC