Bioavailability of phosphorus in granulated and pyrolyzed broiler manure

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Sarvi , M , Hagner , M , Velmala , S , Soinne , H , Uusitalo , R , Keskinen , R , Ylivainio , K , Kaseva , J & Rasa , K 2021 , ' Bioavailability of phosphorus in granulated and pyrolyzed broiler manure ' , Environmental Technology & Innovation , vol. 23 , 101584 .

Title: Bioavailability of phosphorus in granulated and pyrolyzed broiler manure
Author: Sarvi, Minna; Hagner, Marleena; Velmala, Sannakajsa; Soinne, Helena; Uusitalo, Risto; Keskinen, Riikka; Ylivainio, Kari; Kaseva, Janne; Rasa, Kimmo
Contributor organization: Ecosystems and Environment Research Programme
Fifth Dimension - Vegetated roofs and walls in urban areas
Urban Ecosystems
Date: 2021-08
Language: eng
Number of pages: 11
Belongs to series: Environmental Technology & Innovation
ISSN: 2352-1864
Abstract: Production of organic fertilizers from poultry manure may compromise availability of phosphorus (P) to plants. This study examined the effects of granulation, feather meal addition, and pyrolysis on bioavailability of P in broiler manure in a pot experiment with ryegrass and assessed whether P availability is enhanced by inoculating arbuscular mycorrhizal fungi (AMF) into soil. Granulated broiler manure gave similar plant yield and P uptake to superphosphate. Feather meal addition had a minor negative effect on P availability, whereas pyrolysis lowered the fertilization effect of broiler manure. The yield-based mineral-P equivalences were 120%, 85% and 75% during the first harvest, and 100%, 75% and 45% during one growing season for granulated unamended, granulated amended with feather meal and pyrolyzed broiler manure. Soil inoculation with AMF did not enhance P availability. Granulated poultry manure is suitable as a P fertilizer for annual crops with comparable bioavailability to mineral fertilizer P, whereas pyrolyzed poultry manure is suitable as a slow-release or storage P fertilizer in slightly acidic soils. Knowledge on P bioavailability in organic fertilizers produced with different technologies can be used for optimizing fertilization, minimizing build-up of soil P and its adverse environmental effects. (C) 2021 The Author(s). Published by Elsevier B.V.
Subject: Poultry litter
Slow pyrolysis
Organic fertilizer
Arbuscular mycorrhizal fungi
1172 Environmental sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion

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