The effectiveness of nitrification inhibitor application on grain yield and quality, fertiliser nitrogen recovery and soil nitrous oxide emissions in a legume-wheat rotation under elevated carbon dioxide (FACE)

H Sultana; HC Suter; R Armstrong; ME Nicolas; D Chen

Journal article

The effectiveness of nitrification inhibitor application on grain yield and quality, fertiliser nitrogen recovery and soil nitrous oxide emissions in a legume-wheat rotation under elevated carbon dioxide (FACE)

H Sultana, HC Suter, R Armstrong, ME Nicolas, D Chen

Soil Research | CSIRO PUBLISHING | Published : 2018

DOI: 10.1071/SR16371

Abstract

Managing nitrogen (N) supply to better match crop demand and reduce losses will be an important goal under future predicted elevated carbon dioxide (e[CO2]) conditions. This study comprised two Free-Air Carbon dioxide Enrichment (FACE) experiments conducted in southern Australia in 2011. The first experiment (Exp-1) was a field experiment that investigated the impact of a nitrification inhibitor (NI), 3,4-dimethylpyrazole phosphate (DMPP), and supplementary irrigation on utilisation of legume (field pea) residual N by a wheat crop and soil nitrous oxide (N2O) emissions. The second experiment (Exp-2) used 15N techniques in soil cores to investigate the impact of DMPP on recovery of fertiliser..

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University of Melbourne Researchers

Helen Suter Author

Roger Armstrong Author

Related Projects (1)

BELOW-GROUND PROCESSES: FILLING THE MISSING GAP IN PREDICTING THE RESPONSE OF GRAIN PRODUCTION TO ELEVATED CO2 IN SOUTHERN AUSTRALIA

Climate change is expected to have major impacts on the Australian grains industry, which is worth $7 billion annually. Although increases i..

Grants

Awarded by Appalachian Regional Commission

Funding Acknowledgements

This work was supported by the Australian Research Council Linkage Project (LP100200757), the Department of Economic Development, Jobs, Transport and Resources, Victoria, the University of Melbourne and Incitec Pivot Fertilisers. The authors thank Prof. Caixian Tang for providing necessary funding from the ARC Linkage Project; Gamini Siriwardhani and Shyamalee Gunasekara for help in gas sampling; Peter Howie, Russell Agrall, Mel Munn and Jennifer Briggs for assistance at the AGFACE site; Dr Shu Kee Lam for his advice in the design of the experiment; Tim Huggins in the provision of gas chambers; Dr Jianlie Sun and Najib Ahmady for analysing the samples; and Rachel Sore and Dr Mohsen Mesgaran for statistical support. The AGFACE program is co-funded by the Grains Research and Development Corporation and the Australian Government Department of Agriculture and Water Resources.