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Journal article
Use of a coupled soil-root-leaf model to optimise phosphate fertiliser use efficiency in barley
Plant and soil, Vol.406(1-2), pp.341-357
2016
Abstract
Phosphorus (P) is an essential nutrient necessary for maintaining crop growth, however, it's often used inefficiently within agroecosystems, driving industry to find new ways to deliver P to crops sustainably. We aim to combine traditional soil and crop measurements with climate-driven mathematical models, to give insight into optimising the timing and placement of fertiliser applications.
The whole plant crop model combines an above-ground leaf model with an existing spatially explicit below-ground root-soil model to estimate plant P uptake and above ground dry mass. We let P-dependent photosynthesis estimate carbon (C) mass, which in conjunction with temperature sets the root-growth-rate.
The addition of the leaf model achieved a better estimate of two sets of barley field trial data for plant P uptake, compared with just the root-soil model alone. Furthermore, discrete fertiliser placement increases plant P uptake by up to 10 % in comparison to incorporating fertiliser.
By capturing essential plant processes we are able to accurately simulate P and C use and water and P movement during a cropping season. The powerful combination of mechanistic modelling and experimental data allows physiological processes to be quantified accurately and useful agricultural predictions for site specific locations to be made.
Details
- Title
- Use of a coupled soil-root-leaf model to optimise phosphate fertiliser use efficiency in barley
- Authors/Creators
- J. Heppell - University of SouthamptonS. Payvandi - Syngenta (United Kingdom)P. Talboys - Bangor UniversityK. C. Zygalakis - University of SouthamptonD. Langton - Agrii (United Kingdom)R. Sylvester-Bradley - Agricultural Development Advisory Service (United Kingdom)A. C. Edwards - Scotland's Rural CollegeR. Walker - Scotland's Rural CollegeP. Withers - Bangor UniversityD. L. Jones - Bangor UniversityT. Roose - University of Southampton
- Publication Details
- Plant and soil, Vol.406(1-2), pp.341-357
- Publisher
- Springer Nature
- Number of pages
- 17
- Grant note
- Royal Society; Royal Society of London KUK-C1-13- 04 / King Abdullah University of Science and Technology (KAUST); King Abdullah University of Science & Technology EPSRC; UK Research & Innovation (UKRI); Engineering & Physical Sciences Research Council (EPSRC) BB/I024283/1 / BBSRC; UK Research & Innovation (UKRI); Biotechnology and Biological Sciences Research Council (BBSRC) BB/I024283/1 / Biotechnology and Biological Sciences Research Council; UK Research & Innovation (UKRI); Biotechnology and Biological Sciences Research Council (BBSRC) DEFRA; Department for Environment, Food & Rural Affairs (DEFRA) BBSRC; UK Research & Innovation (UKRI); Biotechnology and Biological Sciences Research Council (BBSRC) LK09136 / Sustainable Arable LINK Project BB/I024283/1 / DEFRA; Department for Environment, Food & Rural Affairs (DEFRA) Scottish Government AHDB
- Identifiers
- 991005560323407891
- Copyright
- © 2016 The Authors
- Murdoch Affiliation
- Centre for Sustainable Farming Systems
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.45 Soil Science
- 3.45.473 Soil Phosphorus Dynamics
- Web Of Science research areas
- Agronomy
- Plant Sciences
- Soil Science
- ESI research areas
- Agricultural Sciences