The accumulation of mineral nitrogen in soil during drying events is affected by soil management
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41340%2F25%3A106201" target="_blank" >RIV/60460709:41340/25:106201 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.still.2025.106623" target="_blank" >https://doi.org/10.1016/j.still.2025.106623</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.still.2025.106623" target="_blank" >10.1016/j.still.2025.106623</a>
Alternative languages
Result language
angličtina
Original language name
The accumulation of mineral nitrogen in soil during drying events is affected by soil management
Original language description
Soil drying events play a critical role in shaping nitrogen (N) cycling in drylands by influencing N availability and the risk of N losses. This study examines how different soil management practices (no-tillage (NT) and traditional tillage (TT), with and without liming)affect N mineralization and the accumulation of inorganic N during drying periods in a hot-summer Mediterranean climate. Using soils from a long-term field experiment in southwestern Spain, we evaluated changes in inorganic N, enzymatic activities, and the abundance of genes related to N cycling during a summer fallow under field conditions, and in a complementary laboratory incubation under controlled temperature conditions. Field results showed a significant accumulation of inorganic N (from 6.47 to 11.43 mg N kg-1) during drying, with a synergistic effect of NT and liming. Enzymatic activities (beta-glucosaminidase, leucine aminopeptidase, proteases) and gene abundances (chiA, pepA, apr) declined with drying but remained higher under NT than TT. The laboratory study confirmed that management-induced differences in N cycling were mainly due to changes in soil biogeochemical properties (organic matter, pH), rather than changes in microclimatic conditions (soil temperature and moisture). While NT and liming enhanced N mineralization and microbial resilience, they also promoted inorganic N accumulation, increasing the potential for N losses (e.g., via N2O emissions) upon rewetting. These results highlight the importance of integrating adaptive practices, such as summer cover cropping, into conservation agriculture to reduce N losses and improve nutrient use efficiency under increasingly frequent drought conditions.
Czech name
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Czech description
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Classification
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
40104 - Soil science
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Soil & Tillage Research
ISSN
0167-1987
e-ISSN
0167-1987
Volume of the periodical
252
Issue of the periodical within the volume
OCT 2025
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
13
Pages from-to
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UT code for WoS article
001484703000001
EID of the result in the Scopus database
2-s2.0-105003731283