Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditions

n rainfed Mediterranean croplands, the interactive effects of fertilization and tillage types on soil aggregation and soil organic carbon (SOC) have been rarely studied. The objective of this study was to assess the interactive effects of tillage and nitrogen (N) fertilization strategies on differen...

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Autores: Álvaro-Fuentes, Jorge, Cantero-Martínez, Carlos, Alonso-Ayuso, María, Gómez, Fernando, Ramos Martín, Ma. C. (Ma. Concepción)
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/468192
Acceso en línea:https://doi.org/10.1016/j.still.2025.106650
https://hdl.handle.net/10459.1/468192
Access Level:acceso abierto
Palabra clave:No-tillage
Organic fertilization
Semiarid croplands
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spelling Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditionsÁlvaro-Fuentes, JorgeCantero-Martínez, CarlosAlonso-Ayuso, MaríaGómez, FernandoRamos Martín, Ma. C. (Ma. Concepción)No-tillageOrganic fertilizationSemiarid croplandsn rainfed Mediterranean croplands, the interactive effects of fertilization and tillage types on soil aggregation and soil organic carbon (SOC) have been rarely studied. The objective of this study was to assess the interactive effects of tillage and nitrogen (N) fertilization strategies on different soil and crop properties in a long-term rainfed experiment established in semiarid NE Spain in 2010. During two cropping seasons (2020–2021 and 2021–2022) the following variables were assessed: SOC, particulate organic matter C (POM-C) and mineral-associated organic matter C (Min-C) contents in the 0–5, 5–10 and 10–30 cm depths; soil aggregate stability in the topsoil (0–5 cm); crop yield; and crop residue dynamics (crop residue biomass and the percent residue cover). Two tillage treatments were compared: conventional tillage (CT) and no-tillage (NT), and five N fertilization strategies: unfertilized, medium and high N rates of mineral fertilizer, and medium and high N rates of organic fertilizer. In both cropping seasons, the crop yield, crop residue biomass and percent residue cover were greater in NT compared with CT (2148 and 1319 kg ha −1 crop residue biomass and 72.0 and 49.7 % residue cover for NT and CT, respectively). Regarding N fertilization, crop yields tended to be greater in the organic fertilizer than in the mineral fertilization treatments (1600 vs 1168 kg ha−1, respectively). Differences between N fertilization treatments were more marked in the residue biomass parameter than in the percent residue cover. The SOC, POM-C and Min-C contents decreased in the next order across soil depths: 0–5 > 5–10 > 10–30. The greatest soil C values were observed in the treatments with the greatest N rate of organic fertilizer. The soil aggregate stability in the topsoil (0–5 cm) increased under NT and the application of organic fertilizers. This study has demonstrated that in rainfed semiarid conditions, long-term NT adoption and the use of organic fertilizers are promising strategies for enhancing SOC buildup and the formation of stable aggregates in the topsoil.The authors would like to thank Carlos Cort\u00E9s, Silvia Mart\u00ED, Victoria Lafuente and Ana Bielsa for laboratory and field assistance This research was supported by the European Union, PRIMA program, Grant Agreement n. 1912; research project \u201CResearch-based participatory approaches for adopting Conservation Agriculture in the Mediterranean Area \u2013 CAMA\u201D and partially by the Spanish State Agency for Research (AEI) (Grant PID2021\u2013126343OB-C31).Elsevier2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://doi.org/10.1016/j.still.2025.106650https://hdl.handle.net/10459.1/468192reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)InglésReproducció del document publicat a https://doi.org/10.1016/j.still.2025.106650Soil and Tillage Research, 2025, vol. 253, núm. 106650, p. 1-9cc-by-nc-nd (c) Álvaro-Fuentes et al., 2025Attribution-NonCommercial-NoDerivatives 4.0 Internationalinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:repositori.udl.cat:10459.1/4681922026-06-24T12:42:17Z
dc.title.none.fl_str_mv Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditions
title Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditions
spellingShingle Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditions
Álvaro-Fuentes, Jorge
No-tillage
Organic fertilization
Semiarid croplands
title_short Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditions
title_full Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditions
title_fullStr Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditions
title_full_unstemmed Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditions
title_sort Soil carbon, aggregation and crop residue dynamics under different tillage and nitrogen fertilization strategies in rainfed Mediterranean conditions
dc.creator.none.fl_str_mv Álvaro-Fuentes, Jorge
Cantero-Martínez, Carlos
Alonso-Ayuso, María
Gómez, Fernando
Ramos Martín, Ma. C. (Ma. Concepción)
author Álvaro-Fuentes, Jorge
author_facet Álvaro-Fuentes, Jorge
Cantero-Martínez, Carlos
Alonso-Ayuso, María
Gómez, Fernando
Ramos Martín, Ma. C. (Ma. Concepción)
author_role author
author2 Cantero-Martínez, Carlos
Alonso-Ayuso, María
Gómez, Fernando
Ramos Martín, Ma. C. (Ma. Concepción)
author2_role author
author
author
author
dc.subject.none.fl_str_mv No-tillage
Organic fertilization
Semiarid croplands
topic No-tillage
Organic fertilization
Semiarid croplands
description n rainfed Mediterranean croplands, the interactive effects of fertilization and tillage types on soil aggregation and soil organic carbon (SOC) have been rarely studied. The objective of this study was to assess the interactive effects of tillage and nitrogen (N) fertilization strategies on different soil and crop properties in a long-term rainfed experiment established in semiarid NE Spain in 2010. During two cropping seasons (2020–2021 and 2021–2022) the following variables were assessed: SOC, particulate organic matter C (POM-C) and mineral-associated organic matter C (Min-C) contents in the 0–5, 5–10 and 10–30 cm depths; soil aggregate stability in the topsoil (0–5 cm); crop yield; and crop residue dynamics (crop residue biomass and the percent residue cover). Two tillage treatments were compared: conventional tillage (CT) and no-tillage (NT), and five N fertilization strategies: unfertilized, medium and high N rates of mineral fertilizer, and medium and high N rates of organic fertilizer. In both cropping seasons, the crop yield, crop residue biomass and percent residue cover were greater in NT compared with CT (2148 and 1319 kg ha −1 crop residue biomass and 72.0 and 49.7 % residue cover for NT and CT, respectively). Regarding N fertilization, crop yields tended to be greater in the organic fertilizer than in the mineral fertilization treatments (1600 vs 1168 kg ha−1, respectively). Differences between N fertilization treatments were more marked in the residue biomass parameter than in the percent residue cover. The SOC, POM-C and Min-C contents decreased in the next order across soil depths: 0–5 > 5–10 > 10–30. The greatest soil C values were observed in the treatments with the greatest N rate of organic fertilizer. The soil aggregate stability in the topsoil (0–5 cm) increased under NT and the application of organic fertilizers. This study has demonstrated that in rainfed semiarid conditions, long-term NT adoption and the use of organic fertilizers are promising strategies for enhancing SOC buildup and the formation of stable aggregates in the topsoil.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.still.2025.106650
https://hdl.handle.net/10459.1/468192
url https://doi.org/10.1016/j.still.2025.106650
https://hdl.handle.net/10459.1/468192
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a https://doi.org/10.1016/j.still.2025.106650
Soil and Tillage Research, 2025, vol. 253, núm. 106650, p. 1-9
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Álvaro-Fuentes et al., 2025
Attribution-NonCommercial-NoDerivatives 4.0 International
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
rights_invalid_str_mv cc-by-nc-nd (c) Álvaro-Fuentes et al., 2025
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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