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CC BY V4.0, Open Access
Journal article
Solubility, Diffusion and Crop Uptake of Phosphorus in Three Different Struvites
Sustainability (Basel, Switzerland), Vol.11(1), 134
2019
Abstract
Phosphate (P) fertilisers produced from waste recycling (e.g., struvite) are considered to be more sustainable than those conventionally produced from the processing of rock P (e.g., highly soluble triple superphosphate, TSP). In this study, we used P-33 to monitor struvite dissolution and P diffusion into the soil in comparison to TSP. We evaluated three distinct chemical formulations of struvite, namely: (1) Crystal Green (R) (CG) produced in an industrial process from sewage sludge; (2) natural struvite (NS) precipitated in swine manure pipelines; and (3) laboratory precipitated struvite (PS) from chicken manure by a new process of P recovery. P diffusion was evaluated in soil columns over a 21-day period. This was complimented with a pot experiment in which wheat and soybean were cultivated in a Eutric Cambisol for 38 days in the presence of either struvite or TSP. P fertilisers were applied at a dose equivalent to 17.5 kg P ha(-1) and fertiliser solubility determined by recovering soil solution. All three types of struvite tested showed reduced P solubility and mobility relative to TSP, but a comparison of the three struvites has shown that their P solubilities differed by a factor of two, with the greatest P release (up to 85% of total P) obtained from a struvite recovered from poultry manure and containing other useful nutrients (K, S and Ca). All struvites enhanced crop growth and P uptake of wheat and soybean relative to a nil P control, with up to 80% P recovery compared to TSP. These results further support the more widespread use of struvite as a sustainable source of P to plants despite its low water solubility.
Details
- Title
- Solubility, Diffusion and Crop Uptake of Phosphorus in Three Different Struvites
- Authors/Creators
- Iona Rech - University of Sao PauloPaul J. A. Withers - Lancaster Environm Ctr, Lancaster LA1 4YQ, EnglandDavey L. Jones - Bangor UniversityPaulo S. Pavinato - University of Sao Paulo
- Publication Details
- Sustainability (Basel, Switzerland), Vol.11(1), 134
- Publisher
- MDPI
- Number of pages
- 15
- Grant note
- NERC; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC) 001 / Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil (CAPES); Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) NE/K002430/1 / NERC; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC) BBSRC; UK Research & Innovation (UKRI); Biotechnology and Biological Sciences Research Council (BBSRC) BB/R005842/1 / Scottish Government under the UK Global Food Security research programme BB/R005842/1 / BBSRC; UK Research & Innovation (UKRI); Biotechnology and Biological Sciences Research Council (BBSRC) ESRC; UK Research & Innovation (UKRI); Economic & Social Research Council (ESRC)
- Identifiers
- 991005560343407891
- Copyright
- © 2018 by the authors.
- Murdoch Affiliation
- Centre for Sustainable Farming Systems
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.83 Bioengineering
- 3.83.2268 Struvite
- Web Of Science research areas
- Environmental Sciences
- Environmental Studies
- Green & Sustainable Science & Technology
- ESI research areas
- Environment/Ecology