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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Science of the Total Environment

ISSN

0048-9697

e-ISSN

—

Svazek periodika

757

Číslo periodika v rámci svazku

25 February

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

143739

Kód UT WoS článku

000604432900026

EID výsledku v databázi Scopus

2-s2.0-85097208027