Slow pyrolysis liquid in reducing NH3 emissions from cattle slurry-Impacts on plant growth and soil organisms

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Hagner , M , Räty , M , Nikama , J , Rasa , K , Peltonen , S , Vepsäläinen , J & Keskinen , R 2021 , ' Slow pyrolysis liquid in reducing NH3 emissions from cattle slurry-Impacts on plant growth and soil organisms ' , The Science of the Total Environment , vol. 784 , 147139 . https://doi.org/10.1016/j.scitotenv.2021.147139

Title: Slow pyrolysis liquid in reducing NH3 emissions from cattle slurry-Impacts on plant growth and soil organisms
Author: Hagner, Marleena; Räty, Mari; Nikama, Johanna; Rasa, Kimmo; Peltonen, Sari; Vepsäläinen, Jouko; Keskinen, Riikka
Contributor organization: Ecosystems and Environment Research Programme
Fifth Dimension - Vegetated roofs and walls in urban areas
Urban Ecosystems
Date: 2021-08-25
Language: eng
Number of pages: 14
Belongs to series: The Science of the Total Environment
ISSN: 0048-9697
DOI: https://doi.org/10.1016/j.scitotenv.2021.147139
URI: http://hdl.handle.net/10138/331811
Abstract: A substantial percentage of manure nitrogen (N) can be lost as gaseous ammonia (NH3) during storage and field spreading. Lowering slurry pH is a simple and accepted method for preserving its N. Efficiency of slow pyrolysis liquid (PL) produced from birch (Betula sp.) as an acidifying agent, and its ability to reduce NH3 emissions following surface application of cattle slurry, was studied in a field experiment. Untreated slurry (US) and slurries acidified with PL and sulfuric acid (SA) were applied to the second harvest of a grass ley. Immediate NH3 emissions, grass biomass, N-yield and possible toxic impacts on soil nematodes and enchytraeids were examined. Furthermore, the effects on soil respiration, nitrogen dynamics and seed germination were studied in subsequent laboratory experiments. In the field, over one third of the water-extractable ammonium-N (NH4-N) applied was lost through NH3 volatilization from US. SA and PL acidified slurries reduced NH3-N emission rate equally from 3.4 to (c) 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Subject: Acidification
Grass ley
Acetic acid
Pyroligneous acid
Wood vinegar
Sulfuric acid
FIELD-APPLIED MANURE
AMMONIA VOLATILIZATION
ANIMAL SLURRY
HYDROTHERMAL CARBONIZATION
CHEMICAL-COMPOSITION
WOOD VINEGAR
ACIDIFICATION
NITROGEN
MINERALIZATION
SEPARATION
1172 Environmental sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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