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dc.contributor.authorBuckley, Cathal
dc.contributor.authorMurphy, Paul
dc.contributor.authorWall, David
dc.date.accessioned2014-07-29T15:40:56Z
dc.date.available2014-07-29T15:40:56Z
dc.date.issued2013
dc.identifier.citationBuckley, C., Murphy, P. and Wall, David (2013).Farm-gate N and P balances and use efficiencies across specialist dairy farms in the Republic Ireland. REDP Working Paper Series 13-WP-RE-02en_GB
dc.identifier.urihttp://hdl.handle.net/11019/677
dc.descriptionworking paperen_GB
dc.description.abstractThis study establishes farm gate N and P balances and use efficiencies based on the average of 2 years of Teagasc National Farm Survey data in 2009 and 2010. The weighted average farm gate N surplus for this nationally representative sample of specialist dairy farms was 143.4 kg N ha-1. Average farm gate nitrogen use efficiency was 23.2%. For dairy farms operating under an EU Nitrates Derogation, the average N surplus was higher at 181.8 kg N ha-1 and averageN use efficiency was slightly lower at 22.2%. The total average farm gate P balance was 4.1 kg ha-1 in surplus, and P use efficiency averaged 83.9%. P balance ranged from -7.3 to 23.0 kg ha-1. A total of 27% had a negative P balance. The average P surplus for farms with a Nitrates Derogation was below the average of all farms at 3.5 kg P ha-1 and average P use efficiency for these Derogation farms was above the average of all farms at 90%.en_GB
dc.language.isoenen_GB
dc.publisherTeagasc, Oak Park, Carlow, Irelanden_GB
dc.relation.ispartofseriesREDP Working Paper Series;13-WP-RE-02
dc.subjectDairy Farmsen_GB
dc.subjectIrelanden_GB
dc.subjectSustainabilityen_GB
dc.subjectNational Farm Surveyen_GB
dc.subjectNutrient balanceen_GB
dc.subjectNutrient use efficiencyen_GB
dc.subjectNitrogenen_GB
dc.subjectPhosphorusen_GB
dc.titleFarm-gate N and P balances and use efficiencies across specialist dairy farms in the Republic Irelanden_GB
dc.typeWorking Paperen_GB
refterms.dateFOA2018-01-12T08:00:10Z


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