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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Stimulating effect of increasing N fertilization on plant growth and rhizosphere microbial activity at low levels of N2O emissions
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40101 - Agriculture

Project
<a href="/en/project/QJ1220007" target="_blank" >QJ1220007: Possibilities of retention of reactive nitrogen from agriculture in the most vulnerable water resource area</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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