Phosphorus uptake from struvite is modulated by the nitrogen form applied

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

  • Ana A. Robles-Aguilar
  • Silvia D. Schrey
  • Johannes A. Postma
  • Vicky M. Temperton
  • Nicolai D. Jablonowski

Next to nitrogen, phosphorus (P) is the most limiting nutrient for plant production worldwide. To secure food production, new nutrient management strategies using alternative P sources instead of mined P fertilizers need to be implemented. Struvite (MgNH4PO4 · 6 H2O) is a promising example of a recycled mineral P fertilizer. Besides positive agronomic results regarding crop yields, further investigations are required to improve the use efficiency of the product and thereby increase its value. Using an automated plant phenotyping platform, we investigated the dynamic response to struvite by two plant species (lupine and maize) with diverse P acquisition strategies in an acidic sandy substrate. Although at three weeks after germination both maize and lupine had reduced leaf area in the struvite treatments compared to the commercial triple superphosphate (TSP), from week four onwards struvite plants grew larger than the TSP-treated plants, indicating a slow release fertilizing effect. Greater P uptake efficiency (g / root length), but reduced root length were observed in the combined treatment of struvite and ammonium, in comparison to struvite and nitrate. We propose that rhizosphere acidification in response to ammonium uptake may enhance P recovery from struvite. A possible additional acidification effect by lupine root exudation might explain the higher P uptake efficiency in this species compared to maize. We conclude that struvite combined with ammonium can be used as a sustainable slow-release P fertilizer on acidic sandy soils.

OriginalspracheEnglisch
ZeitschriftJournal of Plant Nutrition and Soil Science
Jahrgang183
Ausgabenummer1
Seiten (von - bis)80-90
Anzahl der Seiten11
ISSN1436-8730
DOIs
PublikationsstatusErschienen - 01.02.2020

Bibliographische Notiz

The work was conducted within the ManureEcoMine project, funded by the European Community's Framework Programme ( FP7 /2007–2013 ) under Grant Agreement n° 603744 . We would like to thank Thomas Bodewein for expert advice and assistance with measurements and trial management and Christoph Briese for helping with the image analyzes. The authors are grateful to Lucy Harrison for the technical support and colleagues from ZEA‐3 (Forschungszentrum Jülich GmbH) for the chemical analysis of the plant, fertilizer and substrate samples. We thank cordially Jose Correa for his help in the statistical analysis. We highly acknowledge the financial support of numerous students by the DAAD and IAESTE program, providing great support for this experiment. Many thanks to Dr. Jiayin Pang , The University of Western Australia, for her valuable comments on the first draft of this manuscript.

DOI

Zuletzt angesehen

Forschende

  1. Pierangelo Maset

Publikationen

  1. A Multilab Replication of the Ego Depletion Effect
  2. Assessing authenticity in modelling test items: deriving a theoretical model
  3. From Planning to Implementation: Top-Down and Bottom-Up Approaches for Collaborative Watershed Management
  4. Perceptron and SVM learning with generalized cost models
  5. Phase Shift APOD and POD Control Technique in Multi-Level Inverters to Mitigate Total Harmonic Distortion
  6. Test of advanced hyperfine structure theory by precision radio-frequency and laser spectroscopy in molybdenum
  7. Semiparametric one-step estimation of a sample selection model with endogenous covariates
  8. Drawing as a Generative Activity and Drawing as a Prognostic Activity
  9. Determinants and Development of Schools in Organization Theory
  10. University mathematics students’ use of resources: strategies, purposes, and consequences
  11. Validation of Inspection Frameworks and Methods
  12. Development and validation of chemometrics-assisted spectrophotometry and liquid chromatography methods for the simultaneous determination of the active ingredients in two multicomponent mixtures containing chlorpheniramine maleate and phenylpropanolamine hydrochloride.
  13. Media Review: Extrapolations - A View from OS4F
  14. Identification of Parameters and States in PMSMs
  15. A cross-scale assessment of productivity–diversity relationships
  16. Impact assessment of emissions stabilization scenarios with and without induced technological change
  17. Process Analyses of Grounding in Chat-based CSCL
  18. Export Boosting Policies and Firm Performance
  19. Can Geodesign Be Used to Facilitate Boundary Management for Planning and Implementation of Nature-based Solutions?
  20. New developments in space technology
  21. Conception and analysis of Cascaded Dual Kalman Filters as virtual sensors for mastication activity of stomatognathic craniomandibular system
  22. Wie lang sollte eine Rollstuhlrampe sein?
  23. Heterogenitätssensible Hochschullehre
  24. Who’s afraid of the senses? Organization, management and the return of the sensorium
  25. A transdisciplinary evaluation framework for the assessment of integration in boundary-crossing collaborations in teacher education