ORCID
https://orcid.org/0000-0003-4463-9503
Contributor 1
Cathal Redmond
Contributor 2
John Murphy
Abstract
Plant growth and food security depend heavily on phosphorus (P). Recovering and recycling P from animal, municipal, and food waste streams can significantly reduce dependency on traditional mineral P. This is particularly pertinent in the EU regions with limited native P supplies. The agronomic performance of including P-based recycling-derived fertilisers (two struvite and two ashes) or cattle slurry was compared to a conventional mineral P fertilisation programme along with no P and no fertiliser controls over three years. A field-scale experiment was set up to evaluate the perennial ryegrass dry matter yield (DMY), P uptake, and soil test P effects. Struvite, ash, and cattle slurry proved effective in replacing P mineral fertiliser and produced yields similar to those of the mineral fertiliser programme. Differences were observed in plant P recovery, with struvite-based programmes achieving a significantly higher P recovery than ash-based programmes, which had the lowest plant P recovery. Differences in Morgan’s soil test P were also noted, with potato waste struvite (PWS) and poultry litter ash (PLA) showing significantly higher soil test P values. The findings strongly indicate that a range of recycled bio-based fertilisers from the bioeconomy can be used to reduce reliance on conventional imported mineral P fertiliser, with some programmes based on recycled fertilisers even surpassing the performance of conventional linear economy mineral fertilisers.
Disciplines
Civil and Environmental Engineering
DOI
10.3390/agronomy14071591
Full Publication Date
2024
Publisher
MDPI
Funder Name 1
European Regional Development Fund
Award Number 1
NWE601
Funder Name 2
The Irish Research Council
Award Number 2
GOIPG/2020/99
Resource Type
journal article
Resource Version
http://purl.org/coar/version/c_970fb48d4fbd8a85
Access Rights
open access
Open Access Route
Gold Open Access
License Condition
This work is licensed under a Creative Commons Attribution 4.0 International License.
Alternative Identifier
https://www.mdpi.com/2073-4395/14/7/1591
Recommended Citation
Karpinska, A.; Kakouli-Duarte, T.; Ashekuzzaman, S.M.; Byrne, J.; Schmalenberger, A.; Forrestal, P.J. Plant and Soil Effects of Alternative Sources of Phosphorus over Three Years of Application. Agronomy 2024, 14, 1591. https://doi.org/10.3390/agronomy14071591
Publication Details
Agronomy