Stimulating effect of increasing N fertilization on plant growth and rhizosphere microbial activity at low levels of N2O emissions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F25%3A43926582" target="_blank" >RIV/62156489:43210/25:43926582 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.rhisph.2025.101032" target="_blank" >https://doi.org/10.1016/j.rhisph.2025.101032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.rhisph.2025.101032" target="_blank" >10.1016/j.rhisph.2025.101032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stimulating effect of increasing N fertilization on plant growth and rhizosphere microbial activity at low levels of N2O emissions

Popis výsledku v původním jazyce

A greenhouse experiment was conducted to assess the short-term effects of nitrogen (N) addition on plant growth, rhizosphere microbial activity, and N2O emissions. Nitrogen was applied to lettuce plants once the roots had occupied the entire volume of the pots, ensuring that the whole soil volume could be considered rhizosphere soil. The hypothesis tested was that adding a low amount of plant-available nitrogen to the rhizosphere would increase plant root growth and root-associated microbial activity with minimal N2O emissions. Conversely, when the nitrogen availability exceeds the demands of the plant-soil system, it decreases root and microbial growth while increasing N2O emissions. Results indicated that nitrogen applied at rates of 0 - 100 mg N kg-1 was efficiently utilized by plants, supporting the growth of both aboveground and belowground plant biomass and microbial biomass. Notably, the addition of nitrogen did not increase N2O production. These findings suggest that dense root systems can efficiently utilize relatively high amounts of nitrogen.

Název v anglickém jazyce

Stimulating effect of increasing N fertilization on plant growth and rhizosphere microbial activity at low levels of N2O emissions

Popis výsledku anglicky

A greenhouse experiment was conducted to assess the short-term effects of nitrogen (N) addition on plant growth, rhizosphere microbial activity, and N2O emissions. Nitrogen was applied to lettuce plants once the roots had occupied the entire volume of the pots, ensuring that the whole soil volume could be considered rhizosphere soil. The hypothesis tested was that adding a low amount of plant-available nitrogen to the rhizosphere would increase plant root growth and root-associated microbial activity with minimal N2O emissions. Conversely, when the nitrogen availability exceeds the demands of the plant-soil system, it decreases root and microbial growth while increasing N2O emissions. Results indicated that nitrogen applied at rates of 0 - 100 mg N kg-1 was efficiently utilized by plants, supporting the growth of both aboveground and belowground plant biomass and microbial biomass. Notably, the addition of nitrogen did not increase N2O production. These findings suggest that dense root systems can efficiently utilize relatively high amounts of nitrogen.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40101 - Agriculture

Projekt

<a href="/cs/project/QJ1220007" target="_blank" >QJ1220007: Možnosti zadržení reaktivního dusíku ze zemědělství ve vodohospodářsky nejzranitelnější oblasti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Rhizosphere

ISSN

2452-2198

e-ISSN

2452-2198

Svazek periodika

33

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

4

Strana od-do

101032

Kód UT WoS článku

001427907700001

EID výsledku v databázi Scopus

2-s2.0-85217422068