Phosphorus Response Trial
Status: Ongoing, since 2013
Contact person: Prof Davey Jones
Funding sources: UK Government (DEFRA)
Background: This trial is designed to change agronomic practices in the UK to use P more efficiently in crops. There are a range of laboratory experiments as part of the work, focussing on a detailed exploration of rhizosphere processes (plant-microbial-soil interactions), for example looking at root hairs, organic acid release, auxin responses, plant growth promoting rhizobacteria, phosphatases, fertiliser coatings, novel fertiliser formulation etc.
- To characterised the response of wheat in a low P status soil
- To parameterise a new mathematical model describing P uptake by crop plants
- To quantify root growth and mycorrhizal dynamics in wheat during the growing season
- To determine P acquisition by wheat and above-below ground partitioning of P resources
- To measure soil water, temperature and physical changes during the growing season
- To study fertiliser dissolution rates
Collaborators: Tiina Roose (University of Southampton)
- Heydari, M.M.; Brook, R.M.; Jones, D.L. 2019. The role of phosphorus sources on root diameter, root length and root dry matter of barley (Hordeum vulgare L.). JOURNAL OF PLANT NUTRITION Volume: 42, Pages: 1-15
- Jones, D. L.; Magthab, E. A.; Gleeson, D. B.; Murphy, D.V., Chadwick D.R. 2018. Microbial competition for nitrogen and carbon is as intense in the subsoil as in the topsoil. SOIL BIOLOGY & BIOCHEMISTRY Volume: 117, Pages: 72-82.