Chemically and biologically-mediated fertilizing value of manure-derived biochar
Open accessAbstract
This study evaluates the potential of manure-derived biochars in promoting plant growth and enhancing soil chemical and biological properties during a 150day pot experiment. Biochars from pyrolysis of poultry litter (PL) and swine manure (SM) at 400 and 600°C, and a commonly available wood chip (WC) biochar produced at high temperature (1000°C) were incorporated to silt-loam (SL) and sandy (SY) soils on a 2% dry soil weight basis. Ryegrass was sown and moisture was adjusted to 60% water filled pore space (WFPS). The PL400 and SM400 biochars significantly increased (p<0.05) shoot dry matter (DM) yields (SL soil) and enhanced nitrogen (N), phosphorus (P) and potassium (K) uptake by the plants in both soils, compared to the Control. All biochars significantly increased the soil carbon (C) contents compared to the Control. Total N contents were significantly greater for PL400 and PL600 treatments in both soils. The dehydrogenase activity (DA) significantly increased for PL400 and SM400 treatments and was positively correlated with the volatile matter (VM) contents of the biochars, while β-glucosidase activity (GA) decreased for the same treatments in both soils. All biochars significantly shifted (p≤0.05) the bacterial community structure compared to the Control. This study suggests that pyrolysis of animal manures can produce a biochar that acts as both soil amendment and an organic fertilizer as proven by increased NPK uptake, positive liming effect and high soil nutrient availability, while WC biochar could work only in combination with fertilizers (organic as well as mineral).
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Ash-rich and animal waste-derived biochars, such as manure biochar, may be the best candidate for inorganic nutrient delivery.
“In this case, ash-rich and animal waste-derived biochars, such as manure biochar may be the best candidate for inorganic nutrient delivery (Binh Thanh et al. 2022; Hossain et al. 2020; Subedi et al. 2016).”
From Role of biochar toward carbon neutrality (2023) · cites this paper as Subedi et al. 2016
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- Authors
- Subedi, R., Taupe, N., Ikoyi, I., Bertora, C., Zavattaro, L., Schmalenberger, A., Leahy, J. J., & Grignani, C.
- Affiliations
- University of Limerick (IE)
- University of Turin (IT)
- Corresponding author
- Subedi, R.
- Venue
- Science of The Total Environment
- Publisher
- Elsevier BV
- Published
- 2016-04
- Volume
- 550
- Pages
- 924-933
- ISSN
- 0048-9697 (ISSN-L)
- OpenAlex
- W2268377713
- Cited by
- 100
- References
- 9
- Citations by year
- 2026: 8 · 2025: 7 · 2024: 7 · 2023: 12 · 2022: 14 · 2021: 10 · 2020: 10 · 2019: 10 · 2018: 6 · 2017: 11 · 2016: 5
- FWCI
- 12.48
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Licence
- Locations
- The Science of The Total Environment (publishedVersion)
- PubMed (publishedVersion)
- Institutional Research Information System University of Turin (University of Turin) (submittedVersion, other-oa)
- Funders
- European Union Seventh Framework Programme (FP7/2007-2013/)
- REA (289887)
- 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
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Keywords
- poultry litter, pig manure, pyrolysis temperature, soil amendment, organic fertilizer, plant nutrient uptake, nitrogen, phosphorus and potassium, soil carbon, dehydrogenase activity, β-glucosidase activity, soil microbial communities, bacterial community structure, liming effect, ryegrass, silt loam soil, sandy soil
- MeSH terms
- Carbon, Charcoal, Fertilizers, Manure, Nitrogen, Phosphorus, Soil, Environmental Restoration and Remediation
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