Journal article
Phosphorus availability of sewage sludge-based fertilizers determined by the diffusive gradients in thin films (DGT) technique
Journal of Plant Nutrition and Soil Science, Vol.180(5), pp.594-601
2017
Abstract
The plant-availability of phosphorus (P) in fertilizers and soil can strongly influence the yield of agricultural crops. However, there are no methods to efficiently and satisfactorily analyze the plant-availability of P in sewage sludge-based P fertilizers except by undertaking time-consuming and complex pot or field experiments. We employed the diffusive gradients in thin films (DGT) technique to quantify the plant P availability of various types of P fertilizers with a novel focus on sewage sludge-based P fertilizers. Mixtures of fertilizer and soil were incubated for 3 weeks at 60% water holding capacity. DGT devices were deployed at the beginning of the incubation and again after 1, 2, and 3 weeks. Two weeks of incubation were sufficient for the formation of plant-available P in the fertilizer/soil mixtures. In a pot experiment, the DGT technique predicted maize (Zea mays L.) biomass yield and P uptake significantly more accurately than standard chemical extraction tests for P fertilizers (e.g., water, citric acid, and neutral ammonium citrate). Therefore, the DGT technique can be recommended as a reliable and robust method to screen the performance of different types of sewage sludge-based P fertilizers for maize cultivation minimizing the need for time-consuming and costly pot or field experiments.
Details
- Title
- Phosphorus availability of sewage sludge-based fertilizers determined by the diffusive gradients in thin films (DGT) technique
- Authors
- C Vogel (Author) - Bundesanstalt fu ̈r Materialforschung und -pru ̈fung (BAM), GermanyRyo Sekine (Author) - University of South AustraliaD Steckenmesser (Author) - Justus Liebig University Giessen, GermanyE Lombi (Author) - University of South AustraliaD Steffens (Author) - Justus Liebig University Giessen, GermanyC Adam (Author) - Bundesanstalt fu ̈r Materialforschung und -pru ̈fung (BAM), Germany
- Publication details
- Journal of Plant Nutrition and Soil Science, Vol.180(5), pp.594-601
- Publisher
- Wiley - V C H Verlag GmbH & Co. KGaA
- Date published
- 2017
- DOI
- 10.1002/jpln.201600531
- ISSN
- 1436-8730
- Copyright note
- This is the peer reviewed version of the following article: Vogel, C., Sekine, R., Steckenmesser, D., Lombi, E., Steffens, D. and Adam, C. (2017), Phosphorus availability of sewage sludge-based fertilizers determined by the diffusive gradients in thin films (DGT) technique . J. Plant Nutr. Soil Sci., 180: 594-601. https://doi.org/10.1002/jpln.201600531, which has been published in final form at https://doi.org/10.1002/jpln.201600531. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
- Organisation Unit
- School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99450959002621
- Output Type
- Journal article
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- Domestic collaboration
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- Agronomy
- Plant Sciences
- Soil Science
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