Effects of the nitrification inhibitor nitrapyrin and mulch on N2O emission and fertilizer use efficiency using N-15 tracing techniques

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43919253" target="_blank" >RIV/62156489:43410/21:43919253 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.scitotenv.2020.143739" target="_blank" >https://doi.org/10.1016/j.scitotenv.2020.143739</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2020.143739" target="_blank" >10.1016/j.scitotenv.2020.143739</a>

Result language

angličtina

Original language name

Effects of the nitrification inhibitor nitrapyrin and mulch on N2O emission and fertilizer use efficiency using N-15 tracing techniques

Original language description

Nitrous oxide (N2O), is a potent greenhouse gas (GHG) that shares 7% of global warming around the world. Among different sources, agricultural systems account for approx. 60% of global anthropogenic N2O emissions. These N2O emissions are associated with the activity of nitrifiers and denitrifiers that contribute to &gt;4 Tg (teragrams) N2O-N emission per year. Application of nitrogen (N) fertilizers and manures in agricultural fields plays an imperative role in this regard. On the other hand nitrification inhibitors are an effective approach to minimize N2O-N emissions from agricultural fields. Here we examined the effects of applying urea with a nitrification inhibitor (Ni) nitrapyrin and mulch (Mu) on urea transformation, nitrous oxide (N2O) emissions, grain yield and nitrogen (N) uptake efficiency. The treatments include a control (zero N), urea (U) applied at 200 kg N ha(-1) , U + Ni (Ni applied at 700 g ha(-1)), U+ Mu (Mu applied at 4 t ha(-1)) and U + Ni + Mu. The N2O emission factor (EF) was 66% and 75% when U and Mu were applied. respectively. Yield-scaled N2O emissions were lower in U and Mu by 45% and 55%, respectively. The Ni coupled with Mu enhanced urea-N-1(5) recovery by 58% and wheat grain yield by 23% and total N uptake by 30% compared with U alone. In conclusion, Ni usage is an effective strategy to mitigate N2O emissions under field conditions.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Science of the Total Environment

ISSN

0048-9697

e-ISSN

—

Volume of the periodical

757

Issue of the periodical within the volume

25 February

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

143739

UT code for WoS article

000604432900026

EID of the result in the Scopus database

2-s2.0-85097208027