Dimethyl pyrazol-based nitrification inhibitors effect on nitrifying and denitrifying bacteria to mitigate N₂O emission.

ABSTRACT: Nitrous oxide (N₂O) emissions have been increasing as a result of intensive nitrogen (N) fertilisation. Soil nitrification and denitrification are the main sources of N₂O, and the use of ammonium-based fertilisers combined with nitrification inhibitors (NIs) could be useful in mitigating N₂O emissions from agricultural systems. In this work we looked at the N₂O mitigation capacity of two dimethylpyrazol-based NIs, 3,4-dimethylpyrazole phosphate (DMPP) and 2-(N-3,4-dimethyl-1H-pyrazol-1-yl) succinic acid isomeric mixture (DMPSA), on soil nitrifying and denitrifying microbial populations under two contrasting soil water contents (40% and 80% soil water filled pore space; WFPS). Our results show that DMPP and DMPSA are equally efficient at reducing

SUBMITTER: Torralbo F 

PROVIDER: S-EPMC5653738 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature