Claim · model-written summary
Sewage sludge reduced soil DTPA-extractable metals and calcium chloride soluble zinc and nickel.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- sewage sludgee0
- Outcome
- amounts of DTPA-extractable metals and of 0.01 M CaCl 2 -soluble Zn and Ni in the soile0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sewage sludge eliminated the toxic effect of Cu and reduced the toxic effect of Ni on corn, reduced the concentrations of Zn and Ni in the plants, and reduced the amounts of DTPA-extractable metals and of 0.01 M CaCl 2 -soluble Zn and Ni in the soil”
Title
AVAILABILITY OF ZINC, COPPER AND NICKEL TO PLANTS GROWN IN SEWAGE-TREATED SOILS
A. J. MACLEAN; A. J. DEKKER Canadian Journal of Soil Science 1978. doi:10.4141/cjss78-045
Other claims from this paper (13)
- Intervention effect Sewage sludge eliminated copper toxicity to corn.
- Intervention effect Sewage sludge reduced nickel toxicity to corn.
- Intervention effect Sewage sludge reduced zinc and nickel concentrations in corn.
- Observation Lettuce was more susceptible than corn to the three metals in loam soil and zinc in clay soil.
- Observation Nickel was less toxic to lettuce than corn in clay soil.
- Observation Metal concentrations were higher in lettuce than corn.
- Intervention effect Liming clay soil to pH 6.5 eliminated nickel toxicity to corn.
- Intervention effect Liming clay soil to pH 6.5 eliminated zinc and nickel toxicity to lettuce.
- Intervention effect Liming reduced plant metal concentrations.
- Intervention effect Liming reduced soil extractable and soluble metals.
- Observation DTPA extractable metals ranked copper above zinc above nickel.
- Observation Calcium chloride soluble metals ranked nickel above zinc above copper.
- Recommendation Metal effects varied between crops and soils, limiting the zinc equivalent concept to a preliminary guide.