Nitrogen dynamics after slurry application as affected by anaerobic digestion, biochar and a nitrification inhibitor

Frick, Hanna; Efosa, Norah; Oberson, Astrid; Krause, Hans‐Martin; Nägele, Hans-Joachim; Frossard, Emmanuel; Bünemann, Else Katrin

doi:10.1111/sum.12953

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-29488

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Nitrogen dynamics after slurry application as affected by anaerobic digestion, biochar and a nitrification inhibitor
Authors:	Frick, Hanna Efosa, Norah Oberson, Astrid Krause, Hans‐Martin Nägele, Hans-Joachim Frossard, Emmanuel Bünemann, Else Katrin
et. al:	No
DOI:	10.1111/sum.12953 10.21256/zhaw-29488
Published in:	Soil Use and Management
Volume(Issue):	40
Issue:	1
Page(s):	e12953
Issue Date:	29-Jul-2023
Publisher / Ed. Institution:	Wiley
ISSN:	0266-0032 1475-2743
Language:	English
Subjects:	15N labelling; Digestate; DMPP; Nitrate leaching; Nitrogen use efficency (NUE); Soil N dynamics
Subject (DDC):	630: Agriculture
Abstract:	Animal manures are valuable multi-nutrient fertilizers, but their short-term nitrogen (N) use efficiency (NUE) by plants is low, bearing the potential of harmful N losses to the environment, such as nitrate (NO−3) leaching. To develop strategies to increase the NUE of cattle slurry, a comprehensive understanding of slurry N dynamics in the soil–plant system is needed. In a 57-day microcosm experiment in the greenhouse, we assessed the effect of different slurry treatments on slurry N turnover in the soil and its uptake by ryegrass (Lolium multiflorum var. Westerwoldicum). Employing a two-factorial design, 15N cattle slurry (SLU), 15N anaerobically digested cattle slurry (SLA), and 15N anaerobically digested cattle slurry plus biochar (SLA+) were combined with and without the nitrification inhibitor 3,4-dimethyl-1H-pyrazole monophosphate (DMPP). As references, a mineral fertilizer (MIN) and an unfertilised treatment (N0) were included. The 15N recovery, hence NUE, in plant biomass was higher for SLA than for SLU, while recovery in soil at 55 days after set-up showed an opposite trend, with over 45% of N from SLU still being recovered in soil. DMPP and biochar only marginally affected NUE and fertilizer N recovery in soil. Although 15N recovery in soil was highest for SLU, residual N leaching from SLU was low (<1% of added N). We attribute this to the limited presence of slurry N in mineral forms at this point of time, with the majority being stored in the non-microbial organic soil N pool. Leaching of residual N from MIN was significantly higher for MIN than for SLU, while SLA and SLA+ ranged in between. Overall, anaerobic digestion appeared suitable for increasing NUE of cattle slurry, but further investigations under field conditions are necessary in order to assess its potential to reduce nitrate leaching in the long-term.
URI:	https://digitalcollection.zhaw.ch/handle/11475/29488
Fulltext version:	Published version
License (according to publishing contract):	CC BY 4.0: Attribution 4.0 International
Departement:	Life Sciences and Facility Management
Organisational Unit:	Institute of Chemistry and Biotechnology (ICBT)
Appears in collections:	Publikationen Life Sciences und Facility Management

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Frick, H., Efosa, N., Oberson, A., Krause, H.-M., Nägele, H.-J., Frossard, E., & Bünemann, E. K. (2023). Nitrogen dynamics after slurry application as affected by anaerobic digestion, biochar and a nitrification inhibitor. Soil Use and Management, 40(1), e12953. https://doi.org/10.1111/sum.12953

Frick, H. et al. (2023) ‘Nitrogen dynamics after slurry application as affected by anaerobic digestion, biochar and a nitrification inhibitor’, Soil Use and Management, 40(1), p. e12953. Available at: https://doi.org/10.1111/sum.12953.

H. Frick et al., “Nitrogen dynamics after slurry application as affected by anaerobic digestion, biochar and a nitrification inhibitor,” Soil Use and Management, vol. 40, no. 1, p. e12953, Jul. 2023, doi: 10.1111/sum.12953.

FRICK, Hanna, Norah EFOSA, Astrid OBERSON, Hans‐Martin KRAUSE, Hans-Joachim NÄGELE, Emmanuel FROSSARD und Else Katrin BÜNEMANN, 2023. Nitrogen dynamics after slurry application as affected by anaerobic digestion, biochar and a nitrification inhibitor. Soil Use and Management. 29 Juli 2023. Bd. 40, Nr. 1, S. e12953. DOI 10.1111/sum.12953

Frick, Hanna, Norah Efosa, Astrid Oberson, Hans‐Martin Krause, Hans-Joachim Nägele, Emmanuel Frossard, and Else Katrin Bünemann. 2023. “Nitrogen Dynamics after Slurry Application as Affected by Anaerobic Digestion, Biochar and a Nitrification Inhibitor.” Soil Use and Management 40 (1): e12953. https://doi.org/10.1111/sum.12953.

Frick, Hanna, et al. “Nitrogen Dynamics after Slurry Application as Affected by Anaerobic Digestion, Biochar and a Nitrification Inhibitor.” Soil Use and Management, vol. 40, no. 1, July 2023, p. e12953, https://doi.org/10.1111/sum.12953.