Claim · model-written summary
Soybean shoot metal concentrations varied by sludge type, rate, and soil pH.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- R4 growth stagee0
- Treatment
- sludge type, application rate, and soil pHe0
- Outcome
- concentrations of metals in soybean shootse0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentrations of metals in soybean shoots at the R4 growth stage varied according to sludge type, application rate, and soil pH.”
Title
Residual Effects of Sewage Sludge on Soybean: I. Accumulation of Heavy Metals
J. R. Heckman; J. S. Angle; R. L. Chaney Journal of Environmental Quality 1987. doi:10.2134/jeq1987.00472425001600020004x
Other claims from this paper (12)
- Intervention effect Low-metal limed sludges produced metal uptake similar to controls.
- Intervention effect Unlimed high-metal sludges increased soybean metal uptake.
- Intervention effect Digested sludge linearly increased shoot Zn concentration.
- Intervention effect Digested sludge linearly increased shoot Cd concentration.
- Intervention effect Digested sludge linearly increased shoot Cu and Ni concentrations.
- Intervention effect At 112 Mg ha −1, sludge increased soybean Zn from 24 to 165 mg kg −1.
- Intervention effect At 112 Mg ha −1, sludge increased soybean Cd from 0.06 to 0.25 mg kg −1.
- Intervention effect Shoot Cd concentration was over seven times higher with Cd-rich Nu-Earth sludge than other sludges.
- Association Shoot Zn and Cd concentrations had significant linear and quadratic relationships with heat-treated and Nu-Earth sludge rates.
- Association Shoot Zn and Cd accumulation responded more strongly to sludge rate at low soil pH.
- Association At 100 Mg ha −1 Nu-Earth sludge, soybean Zn was 59 mg kg −1 at pH 6.4 and 84 mg kg −1 at pH 5.8.
- Association At 100 Mg ha −1 Nu-Earth sludge, soybean Cd was 1.75 mg kg −1 at pH 6.4 and 2.54 mg kg −1 at pH 5.8.