Effects of the nitrification inhibitor acetylene on nitrous oxide emissions and ammonia-oxidizing microorganisms of different agricultural soils under laboratory incubation conditions
Rui Liu, Helen L Hayden, Hangwei Hu, Jizheng He, Helen Suter, Deli Chen
APPLIED SOIL ECOLOGY | ELSEVIER | Published : 2017
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
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Awarded by Australian Research Council
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).