Upgrading the agricultural production systems sIMulator (APSIM) nitrogen cycling and loss routines with data from the National Australian Nitrous Oxide Research Program (NANORP)

This investment will access the high precision Nitrogen (N) dataset collected by the NANORP program to develop validate and/or improve soil N algorithms within APSIM that predict daily changes in N pools and movement, plant uptake and N losses. The work will also highlight any further weaknesses in the APSIM N module, gaps in N data to further improve these, and specific recommendations for future N research and development.
This investment will assist in refining the GRDC N strategy and specifying future investments that will ultimately ensure grain growers are ahead of the curve with respect to predicting N cycling and losses and improving fertiliser N use efficiency and environmental outcomes. It will ultimately improve Australia’s competitive advantage in the global grains industry.