In April 2015
MPI commissioned the NZAGRC and PGgRc to organise a national workshop on our
current understanding of N efficiency in pastoral systems.  



The aim of the
workshop was to bring together New Zealand’s leading nitrogen researchers to
present their understanding of N efficiency in pastoral systems and to map their
current work in integrated frameworks that represents the pathways within the
nitrogen cycle at four different levels: national, catchment, farm and urine
patch.


Presenters were
also asked to identify the systems impacts and potential unintended
consequences of proposed manipulations, and to identify where in the system the
biggest gains can be made. 


Following this
overview, all attendees (including policy and industry stakeholders) then
discussed potential knowledge gaps and new opportunities with particular focus
on nitrate leaching and N2O emissions and their mitigation.


This page compiles
the outcomes of the workshop, including the agenda, all presentations, an
overview of the proposed interventions mapped within the four frameworks, and a
summary list of key gaps and opportunities.


Contact for
further information:


Cecile de Klein (AgResearch)
cecile.deklein@agresearch.co.nz      


 


Agenda & Summary


 Agenda_NZAGRC-PGgRc_Increased N efficiency in... (0.48MB) 


 Summary of gaps and opportunities_N efficiency... (0.19MB) 


 Summary of N cycling interventions at different... (1.16MB)


 


Presentations 


 1. Stevenson_National Scale N Balance_N... (1.00MB) 


 2. Baisden-N-Efficiency-Catchment.pdf (4.23MB) 


 3. Ledgard_Nitrogen  efficiency MPI meeting... (0.87MB) 


 4. Clough_N use efficiency urine cascade.pdf (1.40MB) 


 5. DairyNZ contribution NZAGRC Increased N... (1.54MB) 


 6. Landcare Research summary for N use eff... (1.26MB) 


 7. Lincoln University_ N efficiency Workshop... (1.10MB) 


 8. Massey University_ Nitrogen Use Efficiency... (1.68MB) 


 9. AgResearch_N effciency workshop_April 2015.pdf (0.46MB) 


 10. NIWA-Catchment-scale attenuation2015.pdf (3.21MB) 


 11. Plant Food Research_ N use efficiency... (1.82MB) 


 12. Waikato University_N efficiency... (1.44MB) 


 13. Pete Smith UK_N-impacts-on-C-cycle_April... (1.09MB)