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Antagonistic effects of nitrification inhibitor 3,4-dimethylpyrazole phosphate and fungicide iprodione on net nitrification in an agricultural soil

journal contribution
posted on 13.02.2019, 00:00 authored by M Zhang, W Wang, Shahla Hosseini BaiShahla Hosseini Bai, X Zhou, Y Teng, Z Xu
This study evaluated the effects of nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) and fungicide iprodione on net nitrification rates and abundances of functional genes related to nitrification and denitrification in an agricultural soil. Single DMPP application or repeated iprodione applications decreased net nitrification rates in the test soil. However, when the DMPP and iprodione were applied together, they could generate antagonistic effects on the inhibitions of net nitrification rates. Repeated iprodione applications reduced ammonia-oxidizing archaea and bacteria (AOA and AOB) amoA gene abundances, while DMPP application decreased AOB amoA gene abundances only. The abundances of narG and nirK genes were negatively affected by repeated iprodione applications. Our results demonstrated that combined applications of DMPP and iprodione could generate antagonistic effects on the inhibitions of net nitrification rates and discrepant impacts on the abundances of functional genes related to soil denitrification. © 2017

Funding

Other

History

Volume

116

Start Page

167

End Page

170

Number of Pages

4

eISSN

1879-3428

ISSN

0038-0717

Publisher

Pergamon Press, UK

Peer Reviewed

Yes

Open Access

No

Acceptance Date

14/10/2017

External Author Affiliations

Griffith University; University of the Sunshine Coast; Chinese Academy of Sciences; Qld Department of Science, Information Technology and Innovation

Era Eligible

Yes

Journal

Soil Biology and Biochemistry