Cited by 1,902Soil Carbon and Nitrogen DynamicsAgricultural Science and FertilizationSoil Management and Crop Yield

Agronomic values of greenwaste biochar as a soil amendment

Chan, K. Y., Van Zwieten, L., Meszaros, I., Downie, A., Joseph, S.·2007·Soil Research

Abstract

A pot trial was carried out to investigate the effect of biochar produced from greenwaste by pyrolysis on the yield of radish (Raphanus sativus var. Long Scarlet) and the soil quality of an Alfisol. Three rates of biochar (10, 50 and 100 t/ha) with and without additional nitrogen application (100 kg N/ha) were investigated. The soil used in the pot trial was a hardsetting Alfisol (Chromosol) (0–0.1 m) with a long history of cropping. In the absence of N fertiliser, application of biochar to the soil did not increase radish yield even at the highest rate of 100 t/ha. However, a significant biochar × nitrogen fertiliser interaction was observed, in that higher yield increases were observed with increasing rates of biochar application in the presence of N fertiliser, highlighting the role of biochar in improving N fertiliser use efficiency of the plant. For example, additional increase in DM of radish in the presence of N fertiliser varied from 95% in the nil biochar control to 266% in the 100 t/ha biochar-amended soils. A slight but significant reduction in dry matter production of radish was observed when biochar was applied at 10 t/ha but the cause is unclear and requires further investigation. Significant changes in soil quality including increases in pH, organic carbon, and exchangeable cations as well as reduction in tensile strength were observed at higher rates of biochar application (>50 t/ha). Particularly interesting are the improvements in soil physical properties of this hardsetting soil in terms of reduction in tensile strength and increases in field capacity.

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Registry

Crossref · 10.1071/sr07109

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19 of 19 references verified0 citation errors · 0 not checkable

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  • Biochar addition can reduce greenhouse gas emissions.

    “It has also recently been demonstrated that biochar addition can improve soil fertility, soil water-holding capacity and nutrient uptake, while sequestrating carbon and reducing greenhouse gas emissions (Barnes et al., 2014;Chan et al., 2007;Clough et al., 2013;Kloss et al., 2014;Mukherjee and Lal, 2013;Steiner et al., 2008b;Van Zwieten et al., 2010a;Zhang and Ok, 2014).”

    From Biochar implications for sustainable agriculture and environment: A review (2019) · cites this paper as Chan et al., 2007

  • Biochar addition can improve nutrient uptake.

    “It has also recently been demonstrated that biochar addition can improve soil fertility, soil water-holding capacity and nutrient uptake, while sequestrating carbon and reducing greenhouse gas emissions (Barnes et al., 2014;Chan et al., 2007;Clough et al., 2013;Kloss et al., 2014;Mukherjee and Lal, 2013;Steiner et al., 2008b;Van Zwieten et al., 2010a;Zhang and Ok, 2014).”

    From Biochar implications for sustainable agriculture and environment: A review (2019) · cites this paper as Chan et al., 2007

  • Biochar addition can sequester carbon.

    “It has also recently been demonstrated that biochar addition can improve soil fertility, soil water-holding capacity and nutrient uptake, while sequestrating carbon and reducing greenhouse gas emissions (Barnes et al., 2014;Chan et al., 2007;Clough et al., 2013;Kloss et al., 2014;Mukherjee and Lal, 2013;Steiner et al., 2008b;Van Zwieten et al., 2010a;Zhang and Ok, 2014).”

    From Biochar implications for sustainable agriculture and environment: A review (2019) · cites this paper as Chan et al., 2007

  • Biochar addition can improve soil water-holding capacity.

    “It has also recently been demonstrated that biochar addition can improve soil fertility, soil water-holding capacity and nutrient uptake, while sequestrating carbon and reducing greenhouse gas emissions (Barnes et al., 2014;Chan et al., 2007;Clough et al., 2013;Kloss et al., 2014;Mukherjee and Lal, 2013;Steiner et al., 2008b;Van Zwieten et al., 2010a;Zhang and Ok, 2014).”

    From Biochar implications for sustainable agriculture and environment: A review (2019) · cites this paper as Chan et al., 2007

  • Biochar addition can improve soil fertility.

    “It has also recently been demonstrated that biochar addition can improve soil fertility, soil water-holding capacity and nutrient uptake, while sequestrating carbon and reducing greenhouse gas emissions (Barnes et al., 2014;Chan et al., 2007;Clough et al., 2013;Kloss et al., 2014;Mukherjee and Lal, 2013;Steiner et al., 2008b;Van Zwieten et al., 2010a;Zhang and Ok, 2014).”

    From Biochar implications for sustainable agriculture and environment: A review (2019) · cites this paper as Chan et al., 2007

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Authors
Chan, K. Y., Van Zwieten, L., Meszaros, I., Downie, A., & Joseph, S.
Affiliations
  • New South Wales Department of Primary Industries (AU)
  • BNSW Department of Primary Industries, Wollongbar, NSW 2477, Australia.
  • UNSW Sydney (AU)
Corresponding author
Chan, K. Y.
Venue
Soil Research
Published
2007-12-07
Volume
45
Issue
8
Pages
629-634
ISSN
  • 0004-9573 (ISSN-L)
  • 1838-675X
  • 1838-6768
OpenAlex
W2049683810
Cited by
1,902
References
19
Citations by year
2026: 34 · 2025: 70 · 2024: 91 · 2023: 136 · 2022: 150 · 2021: 139 · 2020: 192 · 2019: 165 · 2018: 125 · 2017: 142 · 2016: 101 · 2015: 113 · 2014: 133 · 2013: 93 · 2012: 95
FWCI
36.54
Type
journal article
Language
en
Open access
closed
Locations
Soil Research (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Agricultural Science and Fertilization
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Management and Crop Yield
Keywords
biochar, green waste, pyrolysis, soil amendment, radish yield, Alfisol, soil quality, soil physical properties, soil organic carbon, exchangeable cations, soil pH, tensile strength, field capacity

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