Cited by 395Heavy metals in environmentPlant Micronutrient Interactions and EffectsAdsorption and biosorption for pollutant removal

Influence of biochar application to soil on the availability of As, Cd, Cu, Pb, and Zn to maize (Zea mays L .)

Namgay, Tshewang, Singh, Balwant, Singh, Bhupinder Pal·2010·Soil Research

Abstract

Biochar has gained importance due to its ability to increase the long-term soil carbon pool and improve crop productivity. However, little research has been done to evaluate the influence of biochar application to soil on the bioavailability of trace elements to plants. A pot experiment was conducted to investigate the influence of biochar on the availability of As, Cd, Cu, Pb, and Zn to maize (Zea mays L.). An activated wood biochar, pyrolysed at 550°C, was applied at 3 rates (0, 5, and 15 g/kg) in factorial combinations with 3 rates (0, 10, and 50 mg/kg) each of As, Cd, Cu, Pb, and Zn separately to a sandy soil. After 10 weeks of growth, plants were harvested, shoot dry matter yield was measured, and concentration of trace elements in shoots was analysed. The soil in pots was analysed for extractable trace elements. The results showed that the addition of wood biochar to soil did not have any significant effect on the dry matter yield of maize plants, even at the highest rate of application. However, trace element application significantly reduced the dry matter yield from 10 to 93% depending on the type of trace element. Biochar application decreased the concentration of As, Cd, and Cu in maize shoots, especially at the highest rate of trace element application, whereas the effects were inconsistent on Pb and Zn concentrations in the shoots. The concentrations of extractable As and Zn in soil increased with biochar application, whereas extractable Cu did not change, Pb decreased, and Cd showed an inconsistent trend. Sorption of trace elements on biochar with initial loadings up to 200 µmol at pH 7 occurred in the order: Pb > Cu > Cd > Zn > As. The results show that biochar application can significantly reduce the availability of trace elements to plants and suggest that biochar application may have potential for the management of soils contaminated by trace elements.

Integrity signals

Registry

Crossref · 10.1071/sr10049

Cites

53 of 53 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • After 10 weeks of growth, an activated wood biochar, pyrolysed at 550 °C and applied at rates from 5-15 g kg−1 soil had no any significant effect on the dry matter yield of maize plants, even at the highest rate of application.

    “After 10 weeks of growth, an activated wood biochar, pyrolysed at 550 °C and applied at rates from 5-15 g kg -1 soil had no any significant effect on the dry matter yield of maize plants, even at the highest rate of application (Namgay et al., 2010).”

    From Biochar implications for sustainable agriculture and environment: A review (2019) · cites this paper as Namgay et al., 2010

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Namgay, T., Singh, B., & Singh, B. P.
Affiliations
The University of Sydney (AU)
Corresponding author
  • Singh, Balwant
  • Singh, Bhupinder Pal
Venue
Soil Research
Published
2010-09-28
Volume
48
Issue
7
Pages
638-647
ISSN
  • 0004-9573 (ISSN-L)
  • 1838-675X
  • 1838-6768
OpenAlex
W1987494126
Cited by
395
References
53
Citations by year
2026: 8 · 2025: 17 · 2024: 25 · 2023: 26 · 2022: 32 · 2021: 33 · 2020: 42 · 2019: 39 · 2018: 32 · 2017: 26 · 2016: 29 · 2015: 21 · 2014: 27 · 2013: 17 · 2012: 10
FWCI
11.61
Type
journal article
Language
en
Open access
closed
Locations
Soil Research (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Micronutrient Interactions and Effects
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
Keywords
biochar, wood biochar, trace element availability, arsenic, cadmium, copper, lead, zinc, maize, heavy metal uptake by plants, trace element sorption, soil remediation, sandy soil, dry matter yield

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review