Life cycle environmental impacts of future dairy farming intensification scenarios: A comparison of intensified systems based on nitrogen fertiliser versus maize silage

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dc.citation.issue29en_US
dc.contributor.authorChobtang, Jen_US
dc.contributor.authorLedgard, SFen_US
dc.contributor.authorMcLaren, SJen_US
dc.contributor.authorDonaghy, DJen_US
dc.contributor.editorCurrie, LDen_US
dc.contributor.editorSingh, Ren_US
dc.coverage.spatialPalmerston North, New Zealanden_US
dc.date.available2016en_US
dc.date.finish-date2016-02-11en_US
dc.date.issued2016en_US
dc.date.start-date2016-02-09en_US
dc.description.abstractThis study compared multiple life cycle environmental impacts derived from two prospective farm intensification methods to support potential increased milk production in the Waikato region of New Zealand in 2025: (i) extra nitrogen (N) fertiliser at 137 kg N per ha (N scenario), and (ii) extra brought-in maize silage at 2,275 kg dry matter per ha (MS scenario). The cradle-to-farm gate perspective (i.e. environmental emissions starting from an extraction of raw material through to production of milk at the farm gate were accounted for) was used as a system boundary with 1 kg of fat- and protein-corrected milk as a functional unit. Allocation of environmental burdens between co-products of the inflows were based on an economic relationship, and for the outflow (i.e. milk and dairy meat), allocation was based on biophysical relationship (i.e. relative feed requirement for each of co-products). The results demonstrate environmental trade-offs between the two farm intensification methods, highlighting the relevance to assess a wide range of environmental impact indicators when doing an environmental assessment. The environmentally preferable intensification method will depend on priority and scale of environmental indicators of concern.en_US
dc.description.confidentialfalseen_US
dc.description.place-of-publicationPalmerston North, New Zealanden_US
dc.description.publication-statusPublisheden_US
dc.format.extent1 - 7en_US
dc.identifier.citationIntegrated nutient and water management for sustainable farming, 2016, (29), pp. 1 - 7en_US
dc.identifier.eissn2230-3944en_US
dc.identifier.elements-id279738
dc.identifier.harvestedMassey_Dark
dc.identifier.issn0112-9902en_US
dc.publisherFertilizer & Lime Research Centreen_US
dc.relation.isPartOfIntegrated nutient and water management for sustainable farmingen_US
dc.source29th Annual Fertilizer & Lime Research Centre - Integrated nutrient and water management for sustainable farmingen_US
dc.titleLife cycle environmental impacts of future dairy farming intensification scenarios: A comparison of intensified systems based on nitrogen fertiliser versus maize silageen_US
dc.typeConference Paper
pubs.notesNot knownen_US
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Agriculture & Environment
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