Effects of the nitrification inhibitor acetylene on nitrous oxide emissions and ammonia-oxidizing microorganisms of different agricultural soils under laboratory incubation conditions

R Liu; HL Hayden; H Hu; J He; H Suter; D Chen

Journal article

Effects of the nitrification inhibitor acetylene on nitrous oxide emissions and ammonia-oxidizing microorganisms of different agricultural soils under laboratory incubation conditions

R Liu, HL Hayden, H Hu, J He, H Suter, D Chen

Applied Soil Ecology | ELSEVIER | Published : 2017

DOI: 10.1016/j.apsoil.2017.05.034

Download PDF

Abstract

Acetylene (C2H2) is an effective nitrification inhibitor targeting autotrophic ammonia oxidizers, and has shown promise for improving nitrogen use efficiency by mitigating greenhouse gas nitrous oxide (N2O) emissions and reducing nitrate leaching. Its efficacy, however, varies considerably with edaphic and environmental conditions and remains largely less studied in dryland agricultural soils. Here we conducted two laboratory microcosm incubations to explore the efficacy of C2H2 across various agricultural soils and under different conditions. The first incubation was with four agricultural soils at 25 °C and 60% water-filled pore space (WFPS), and the second incubation included one cropping..

View full abstract

University of Melbourne Researchers

Helen L. Hayden Author

Hang-Wei Hu Author

Jim He Author

Helen Suter Author

Related Projects (5)

Reserving nitrogen in soils through microbial nitrate reduction to ammonium

This project aims to identify those microbes able to transform nitrate to ammonium and thus increase soil nitrogen conservation. More than 5..

Unravelling the microbial mechanisms of soil nitrous oxide emissions

Soil ecosystems are believed to be the most dominant sources of global nitrous oxide emissions. However, mitigations of nitrous oxide are st..

Unravelling the microbial mechanisms of soil nitrous oxide emissions

Soil ecosystems are believed to be the most dominant sources of global nitrous oxide emissions. However, mitigations of nitrous oxide are st..

Soil microbial indicators for efficient use of nitrification inhibitors

This project aims to improve understanding of the efficiency and governing factors of nitrification inhibitors in different agricultural soi..

Soil microbial indicators for efficient use of nitrification inhibitors

Soil microbial indicators for efficient use of nitrification inhibitors. This project aims to improve understanding of the efficiency and go..

Grants

Awarded by Australian Research Council

Funding Acknowledgements

The authors would like to acknowledge the financial support by Incitec Pivot, the Australian Government Department of Agriculture through the Grains Research and Development Corporation, and Australian Research Council (DE150100870, DP160101028, LP160101134).