Journal article

Effects of repeated applications of urea with DMPP on ammonia oxidizers, denitrifiers, and non-targeted microbial communities of an agricultural soil in Queensland, Australia

AO Luchibia, SK Lam, H Suter, Q Chen, B O'Mara, JZ He

Applied Soil Ecology | Elsevier BV | Published : 2019

Abstract

© 2019 Elsevier B.V. Nitrification inhibitors have been reported to reduce nitrous oxide emission and nitrate leaching in agricultural systems. The effects of repeated applications of urea alone or in combination with nitrification inhibitors on nitrogen (N) cycling microbes involved in nitrification and denitrification together with non-targeted microbes are not well understood. Therefore, the objective of this study was to investigate the effects of repeated application of urea and DMPP on soil physio-chemistry, ammonia oxidizers and total bacteria in the soil. We collected soil samples from a 4.5-year field experiment under crop rotation with repeated application of seven treatments, name..

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Grants

Awarded by Australian Research Council


Funding Acknowledgements

We acknowledge the financial support from the Australian Research Council (LP160101134). We thank the Trace Analysis for Chemical, Earth, and Environmental Sciences (TrACEES), The University of Melbourne, for analytical support.