Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones
Improvement in fertiliser use efficiency is a key aspect for achieving sustainable agriculture in order to minimise costs, greenhouse gas emissions and pollution from nutrient runoff. To optimise root architecture for nutrient uptake and efficiency we need to understand what the roots encounter in t...
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| Format: | Article |
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Wiley
2017
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| Online Access: | https://eprints.nottingham.ac.uk/45450/ |
| _version_ | 1848797133075906560 |
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| author | Brackin, Richard Atkinson, Brian S. Sturrock, Craig J. Rasmussen, Amanda |
| author_facet | Brackin, Richard Atkinson, Brian S. Sturrock, Craig J. Rasmussen, Amanda |
| author_sort | Brackin, Richard |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Improvement in fertiliser use efficiency is a key aspect for achieving sustainable agriculture in order to minimise costs, greenhouse gas emissions and pollution from nutrient runoff. To optimise root architecture for nutrient uptake and efficiency we need to understand what the roots encounter in their environment. Traditional methods of nutrient sampling such as salt extractions can only be done at the end of an experiment, are impractical for sampling locations precisely and give total nutrient values which can overestimate the nutrients available to the roots. In contrast, microdialysis provides a non-invasive, continuous method for sampling available nutrients in the soil. Here for the first time we have used microCT imaging to position microdialysis probes at known distances from the roots and then measured the available nitrate and ammonium. We found that nitrate accumulated close to roots while ammonium was depleted demonstrating that this combination of complementary techniques provides a unique ability to measure root-available nutrients non-destructively and in almost real-time. |
| first_indexed | 2025-11-14T19:59:01Z |
| format | Article |
| id | nottingham-45450 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:59:01Z |
| publishDate | 2017 |
| publisher | Wiley |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-454502020-05-04T19:53:46Z https://eprints.nottingham.ac.uk/45450/ Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones Brackin, Richard Atkinson, Brian S. Sturrock, Craig J. Rasmussen, Amanda Improvement in fertiliser use efficiency is a key aspect for achieving sustainable agriculture in order to minimise costs, greenhouse gas emissions and pollution from nutrient runoff. To optimise root architecture for nutrient uptake and efficiency we need to understand what the roots encounter in their environment. Traditional methods of nutrient sampling such as salt extractions can only be done at the end of an experiment, are impractical for sampling locations precisely and give total nutrient values which can overestimate the nutrients available to the roots. In contrast, microdialysis provides a non-invasive, continuous method for sampling available nutrients in the soil. Here for the first time we have used microCT imaging to position microdialysis probes at known distances from the roots and then measured the available nitrate and ammonium. We found that nitrate accumulated close to roots while ammonium was depleted demonstrating that this combination of complementary techniques provides a unique ability to measure root-available nutrients non-destructively and in almost real-time. Wiley 2017-12 Article PeerReviewed Brackin, Richard, Atkinson, Brian S., Sturrock, Craig J. and Rasmussen, Amanda (2017) Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones. Plant, Cell and Environment, 40 (12). pp. 3135-3142. ISSN 1365-3040 microCT; nitrate; ammonium; depletion zones; accumulation zones; microdialysis; soil nutrients http://onlinelibrary.wiley.com/doi/10.1111/pce.13072/abstract doi:10.1111/pce.13072 doi:10.1111/pce.13072 |
| spellingShingle | microCT; nitrate; ammonium; depletion zones; accumulation zones; microdialysis; soil nutrients Brackin, Richard Atkinson, Brian S. Sturrock, Craig J. Rasmussen, Amanda Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones |
| title | Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones |
| title_full | Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones |
| title_fullStr | Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones |
| title_full_unstemmed | Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones |
| title_short | Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones |
| title_sort | roots-eye view: using microdialysis and microct to non-destructively map root nutrient depletion and accumulation zones |
| topic | microCT; nitrate; ammonium; depletion zones; accumulation zones; microdialysis; soil nutrients |
| url | https://eprints.nottingham.ac.uk/45450/ https://eprints.nottingham.ac.uk/45450/ https://eprints.nottingham.ac.uk/45450/ |