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Philip Murphy

Walsh Fellow

Research Interests

I am a PhD researcher within the Teagasc Crops, Environment and Land Use Programme.  My specialist research area is Nutrient Efficiency in agricultural systems with a focus on achieving greater sustainability.


Current Projects

Currently I am leading a project involving 21 Irish commercial dairy farmers which is investigating the effectiveness of field versus farm scale nutrient budgeting. My research involves working directly with farmers and their advisors to make their annual fertiliser strategy more targeted. The goal with field scale nutrient budgeting is to measure the nutrient flows so that soil fertility deficits can be better addressed across the farm. Increasing the amount of nutrients that get captured in milk and meat products will reduce the potential nutrient losses to our waterways and maintain its high quality. Results so far have shown that there is large variability in soil fertility levels at the field scale on these Irish farms. Nutrient budget calculations have shown that nitrogen and phosphorus balances are affected by soil drainage characteristics and topography of the farm. It is essential that these factors are considered when making a targeted fertiliser strategy for a farm.

This project has enabled me to work closely with researchers, advisors and farmers to achieve more sustainability in our nutrient management strategies.  


Bachelor of Agricultural Science, Major: Agri-Environmental Science (2010-2014)
Doctor of Philosophy (Agricultural Science), on-going (2014-2018) 


Winner of the 2017 Brian Chambers Award
Recipient of the Walsh Fellows Overseas Training Award 20

Professional Membership

  • Agricultural Science Association
  • Irish Grassland Association
  • Fertiliser Association of Ireland
  • New Zealand Grassland Association
  • International Fertiliser Society