Postdoctoral Research Fellow
Overview
Research Interests
- Soil biogeochemistry
- Soil fertility and nutrient cycling
- Soil organic matter
- Plant-Soil interactions
Qualifications
- Bachelor of Agricultural Science (Hons), The University of Queensland
- Doctor of Philosophy, The University of Queensland
Publications
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Journal Article: Impact of contrasting fertilizer technologies on N dynamics from subsurface bands of “pure” or blended fertilizer applications
Janke, Chelsea K. and Bell, Michael J. (2023). Impact of contrasting fertilizer technologies on N dynamics from subsurface bands of “pure” or blended fertilizer applications. Soil, 9 (1), 243-259. doi: 10.5194/soil-9-243-2023
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Journal Article: Mobility and lability of phosphorus from highly concentrated fertiliser bands
Meyer, Gregor, Bell, Michael J., Kopittke, Peter M., Lombi, Enzo, Doolette, Casey L., Brunetti, Gianluca, Klysubun, Wantana and Janke, Chelsea K. (2023). Mobility and lability of phosphorus from highly concentrated fertiliser bands. Geoderma, 429 116248, 1-12. doi: 10.1016/j.geoderma.2022.116248
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Journal Article: Biochemical changes and distribution of nitrogen from bands of stabilised N-fertilizers in contrasting soils
Janke, Chelsea, Fujinuma, Ryosuke, Moody, Phil and Bell, Michael (2021). Biochemical changes and distribution of nitrogen from bands of stabilised N-fertilizers in contrasting soils. Geoderma, 382 114770, 1-12. doi: 10.1016/j.geoderma.2020.114770
Grants
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(2023–2024) Grains Research & Development Corporation
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(2022–2026) Grains Research & Development Corporation
Supervision
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Using stable isotope techniques to quantify the above and below-ground N contribution from legume residues to subsequent grain crops
Doctor Philosophy
Available Projects
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Engineering microbial communities for inhibition of N2O emissions in agricultural soils (Honours Project)
Production in the agriculture sector must be improved to meet the demand for food and fibre of a global population expected to reach 10 billion by 2050. While automation, intensive farming, crop breeding, and the application of nitrogen fertilisers historically boosted cropped agricultural productivity, these options are no longer viable or sustainable. In particular, these practices are associated with the emission of greenhouse gases which are a dominant driver of climate change. There is therefore increasing pressure to reduce emissions in the cropped agricultural sector. This is especially the case for emissions which are associated with nitrogen fertilisation (e.g., nitrous oxide [N2O]), which has a carbon equivalent of 298 x (i.e., 1 kg of N2O = 298 kg of CO2).
This project aims to implement a cutting-edge approach to transfer the relevant microbiological mechanisms from highly diverse soil microbiomes into engineered bio-products by re-assembling microbial communities that suppress N2O emissions in soils. This project will involve working in the biophysical characterization of soils, metagenomics analysis of soils microbiomes, analysis of microbial communities using multiomics, and evaluating the effects of those communities in soils and plants.
The project primarily operates in the 'systems biology' field with some work in 'soil science' and would suit someone looking for a Honours project or work experience in these fields.
Supervisors include: Dr. Axayacatl Gonzalez, Dr Chelsea Janke, and Associate Professor Esteban Marcellin
Please contact: Chelsea (c.stroppiana@uq.edu.au) or Axa (r.gonzalezgarcia@uq.edu.au)
Publications
Featured Publications
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Janke, Chelsea K. and Bell, Michael J. (2023). Impact of contrasting fertilizer technologies on N dynamics from subsurface bands of “pure” or blended fertilizer applications. Soil, 9 (1), 243-259. doi: 10.5194/soil-9-243-2023
-
Mobility and lability of phosphorus from highly concentrated fertiliser bands
Meyer, Gregor, Bell, Michael J., Kopittke, Peter M., Lombi, Enzo, Doolette, Casey L., Brunetti, Gianluca, Klysubun, Wantana and Janke, Chelsea K. (2023). Mobility and lability of phosphorus from highly concentrated fertiliser bands. Geoderma, 429 116248, 1-12. doi: 10.1016/j.geoderma.2022.116248
-
Janke, Chelsea, Fujinuma, Ryosuke, Moody, Phil and Bell, Michael (2021). Biochemical changes and distribution of nitrogen from bands of stabilised N-fertilizers in contrasting soils. Geoderma, 382 114770, 1-12. doi: 10.1016/j.geoderma.2020.114770
Journal Article
-
Janke, Chelsea K. and Bell, Michael J. (2023). Impact of contrasting fertilizer technologies on N dynamics from subsurface bands of “pure” or blended fertilizer applications. Soil, 9 (1), 243-259. doi: 10.5194/soil-9-243-2023
-
Mobility and lability of phosphorus from highly concentrated fertiliser bands
Meyer, Gregor, Bell, Michael J., Kopittke, Peter M., Lombi, Enzo, Doolette, Casey L., Brunetti, Gianluca, Klysubun, Wantana and Janke, Chelsea K. (2023). Mobility and lability of phosphorus from highly concentrated fertiliser bands. Geoderma, 429 116248, 1-12. doi: 10.1016/j.geoderma.2022.116248
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Janke, Chelsea, Moody, Phil, Fujinuma, Ryosuke and Bell, Michael (2022). The impact of banding polymer-coated urea on nitrogen availability and distribution in contrasting soils. Journal of Soil Science and Plant Nutrition, 22 (3), 3081-3095. doi: 10.1007/s42729-022-00869-x
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Martinez, Cristina, Clarke, Daniel, Dang, Yash P., Janke, Chelsea and Bell, Michael J. (2021). Integrated field assessment of nitrogen release dynamics and crop recovery of band-applied controlled-release fertilisers. Plant and Soil, 466 (1-2), 257-273. doi: 10.1007/s11104-021-05043-3
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Janke, Chelsea, Fujinuma, Ryosuke, Moody, Phil and Bell, Michael (2021). Biochemical changes and distribution of nitrogen from bands of stabilised N-fertilizers in contrasting soils. Geoderma, 382 114770, 1-12. doi: 10.1016/j.geoderma.2020.114770
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Three-dimensional dynamics of nitrogen from banded enhanced efficiency fertilizers
Janke, Chelsea K., Moody, Philip and Bell, Michael J. (2020). Three-dimensional dynamics of nitrogen from banded enhanced efficiency fertilizers. Nutrient Cycling in Agroecosystems, 118 (3), 227-247. doi: 10.1007/s10705-020-10095-5
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Janke, Chelsea K., Fujinuma, Ryosuke, Moody, Phil and Bell, Michael J. (2019). Biochemical effects of banding limit the benefits of nitrification inhibition and controlled-release technology in the fertosphere of high N-input systems. Soil Research, 57 (1), 28-40. doi: 10.1071/SR18211
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Janke, Chelsea K., Wendling, Laura A. and Fujinuma, Ryosuke (2018). Biological nitrification inhibition by root exudates of native species, Hibiscus splendens and Solanum echinatum. PeerJ, 6 (6) e4960, e4960. doi: 10.7717/peerj.4960
Conference Publication
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Distribution and chemical speciation of nitrogen from band-applied enhanced-efficiency fertilisers
Janke, C. K., Fujinuma, R., Moody, P. W. and Bell, M. J. (2021). Distribution and chemical speciation of nitrogen from band-applied enhanced-efficiency fertilisers. Annual Conference of the Australian Society of Sugar Cane Technologists, Bundaberg, QLD, Australia, 20-23 April 2021. Mackay, QLD, Australia: Australian Society of Sugar Cane Technologists.
Other Outputs
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Raw and processed datasets of phosphorus behaviour in Australian grain-producing soils
Kopittke, Peter, Meyer, Gregor, Janke, Chelsea and McKenna, Brigid (2023). Raw and processed datasets of phosphorus behaviour in Australian grain-producing soils. The University of Queensland. (Dataset) doi: 10.48610/244bae4
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Bell, Michael, Raymond, Nelly, Kopittke, Peter, Janke, Chelsea and Lester, David (2022). P dynamics in Vertosols - factors influencing fertiliser P availability over time and the implications for rate, application method and residual value. GRDC Update Papers GRDC Update Paper: Grains and Research Development Corporation.
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Martinez, Cristina, Janke, Chelsea, Dang, Yash and Bell, Michael (2022). Nitrogen release dynamics of enhanced efficiency fertilisers (EEFs): placement, soil factors and plant uptake. GRDC Update Papers GRDC Update Papers: The Grains Research and Development Corporation.
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Janke, Chelsea (2020). The impact of banding urea and enhanced efficiency fertilizers on nitrogen transformations and the implications for nitrogen use efficiency in high-risk environments. PhD Thesis, School of Agriculture and Food Sciences, The University of Queensland. doi: 10.14264/uql.2020.676
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Janke, Chelsea, Moody, Phil, Fujinuma, Ryosuke and Bell, Michael (2020). Can ‘stabilised’ and controlled-release N deliver improved N use efficiency when applied in concentrated bands?. GRDC Update Papers GRDC Update Papers: The Grains and Research Development Corporation.
Grants (Administered at UQ)
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(2023–2024) Grains Research & Development Corporation
-
(2022–2026) Grains Research & Development Corporation
PhD and MPhil Supervision
Current Supervision
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Using stable isotope techniques to quantify the above and below-ground N contribution from legume residues to subsequent grain crops
Doctor Philosophy — Associate Advisor
Other advisors:
Possible Research Projects
Note for students: The possible research projects listed on this page may not be comprehensive or up to date. Always feel free to contact the staff for more information, and also with your own research ideas.
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Engineering microbial communities for inhibition of N2O emissions in agricultural soils (Honours Project)
Production in the agriculture sector must be improved to meet the demand for food and fibre of a global population expected to reach 10 billion by 2050. While automation, intensive farming, crop breeding, and the application of nitrogen fertilisers historically boosted cropped agricultural productivity, these options are no longer viable or sustainable. In particular, these practices are associated with the emission of greenhouse gases which are a dominant driver of climate change. There is therefore increasing pressure to reduce emissions in the cropped agricultural sector. This is especially the case for emissions which are associated with nitrogen fertilisation (e.g., nitrous oxide [N2O]), which has a carbon equivalent of 298 x (i.e., 1 kg of N2O = 298 kg of CO2).
This project aims to implement a cutting-edge approach to transfer the relevant microbiological mechanisms from highly diverse soil microbiomes into engineered bio-products by re-assembling microbial communities that suppress N2O emissions in soils. This project will involve working in the biophysical characterization of soils, metagenomics analysis of soils microbiomes, analysis of microbial communities using multiomics, and evaluating the effects of those communities in soils and plants.
The project primarily operates in the 'systems biology' field with some work in 'soil science' and would suit someone looking for a Honours project or work experience in these fields.
Supervisors include: Dr. Axayacatl Gonzalez, Dr Chelsea Janke, and Associate Professor Esteban Marcellin
Please contact: Chelsea (c.stroppiana@uq.edu.au) or Axa (r.gonzalezgarcia@uq.edu.au)
