Nutrient retention, availability and greenhouse gas emissions from biochar-fertilized Chernozems
Nutrient retention, availability and greenhouse gas emissions from biochar-fertilized Chernozems
Simple item page
Full item details
- dc.contributor.author
- Romero, Carlos M.
- Hao, Xiying
- Li, Chunli
- Owens, Jen
- Schwinghamer, Timothy
- McAllister, Tim A.
- Okine, Erasmus
- dc.date.accepted
- 2020-11-09
- dc.date.accessioned
- 2026-01-21T22:12:50Z
- dc.date.available
- 2026-01-21T22:12:50Z
- dc.date.issued
- 2020-11-19
- dc.date.submitted
- 2020-03-05
- dc.description.abstract - en
- Amending soil with pyrogenic-C (biochar) has emerged as a potential best management practice to accumulate organic matter (OM), reduce greenhouse gas (GHG) emissions and increase nutrient retention among degraded, marginally-productive croplands. Nevertheless, the impact of biochar application on intensively cropped prairie eco-regions is not well documented, particularly when co-applied with chemical fertilizer. Our objective was to determine the effect of biochar on cumulative CO2-C, N2O-N and CH4-C emissions, water-extractable OM, and available N (AN; NH4-N + NO3-N) and P (AP; PO4-P) in the presence or absence of NP-fertilizer. Biochar was applied to two surface Chernozems (0–15 cm) of contrasting texture [i.e., sandy clay loam (Raymond) and clayey (Lethbridge)] at six rates (0, 0.15, 0.5, 3, 10 and 20 Mg ha−1) in combination with (+NP) or without (−NP) urea-N (150 kg N ha−1) and KH2PO4 (50 kg P ha−1). A total of 72 soil columns were incubated at 21 °C for 86 d. Biochar addition increased soil total C up to 24.9 g kg−1 and 28.7 g kg−1 in Raymond and Lethbridge, respectively, but did not affect water-extractable OM. Cumulative N2O-N and CH4-C emissions were not influenced by biochar, regardless of whether or not NP-fertilizer was added (p > 0.05). Cumulative CO2-C emissions varied between soil textures and were increased or decreased non-linearly by biochar addition under –NP only. Available P increased within +NP soil with increasing biochar rates reaching 43.9 mg kg−1 in Raymond and 79.5 mg kg−1 in Lethbridge when biochar was applied at 20 Mg ha−1. A similar but less pronounced response was observed for AN. Our results indicate that biochar-only application is not a practical management approach for improving soil fertility and nutrient cycling in surface Chernozems. Nevertheless, co-applying biochar with NP-fertilizer appears to improve soil P availability in the short-term.
- dc.identifier.citation
- Romero, C. M., Hao, X., Li, C., Owens, J., Schwinghamer, T., McAllister, T. A., & Okine, E. (2021). Nutrient retention, availability and greenhouse gas emissions from biochar-fertilized Chernozems. CATENA, 198, 105046. https://doi.org/10.1016/j.catena.2020.105046
- dc.identifier.doi
- https://doi.org/10.1016/j.catena.2020.105046
- dc.identifier.issn
- 0341-8162
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/4169
- dc.language.iso
- en
- dc.publisher - en
- Elsevier B.V.
- dc.publisher - fr
- Elsevier B.V.
- dc.rights - en
- Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
- dc.rights - fr
- Creative Commons Attribution - Pas d'utilisation commerciale - Pas de modification 4.0 International (CC BY-NC-ND 4.0)
- dc.rights.uri - en
- https://creativecommons.org/licenses/by-nc-nd/4.0/
- dc.rights.uri - fr
- https://creativecommons.org/licenses/by-nc-nd/4.0/deed.fr
- dc.subject - en
- Agriculture
- Soil quality
- Greenhouse gases
- Prairie ecosystems
- dc.subject - fr
- Agriculture
- Qualité des sols
- Gaz à effet de serre
- Écosystème prairial
- dc.subject.en - en
- Agriculture
- Soil quality
- Greenhouse gases
- Prairie ecosystems
- dc.subject.fr - fr
- Agriculture
- Qualité des sols
- Gaz à effet de serre
- Écosystème prairial
- dc.title - en
- Nutrient retention, availability and greenhouse gas emissions from biochar-fertilized Chernozems
- dc.type - en
- Article
- dc.type - fr
- Article
- local.acceptedmanuscript.articlenum
- 105046
- local.article.journaltitle - en
- Catena
- local.article.journalvolume
- 198
- local.peerreview - en
- Yes
- local.peerreview - fr
- Oui
- local.requestdoi - en
- No
- local.requestdoi - fr
- No
Download(s)
Original bundle
1 - 1 of 1
Name: NutrientRetentionAvailabilityGreenhouseGasEmissions_2020.pdf
Size: 3.42 MB
Format: PDF
Collection(s)