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| dc.creator | Morell Soler, Francisco Joaquín | |
| dc.creator | Cantero-Martínez, Carlos | |
| dc.creator | Lampurlanés Castel, Jorge | |
| dc.creator | Plaza Bonilla, Daniel | |
| dc.creator | Álvaro-Fuentes, Jorge | |
| dc.date | 2011 | |
| dc.date.accessioned | 2025-11-03T12:17:31Z | |
| dc.date.available | 2025-11-03T12:17:31Z | |
| dc.identifier | https://doi.org/10.2136/sssaj2011.0030 | |
| dc.identifier | 0361-5995 | |
| dc.identifier | http://hdl.handle.net/10459.1/58524 | |
| dc.identifier.uri | http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/24505 | |
| dc.description | Th e response of soil CO2 fl ux to long-term tillage practices (no-tillage, NT; minimum tillage, MT; conventional tillage, CT) and N fertilization level (zero; medium, 60 kg N ha–1; high, 120 kg N ha–1) was studied during three growing season in a rainfed Mediterranean agroecosystem. Soil CO2 fl ux was related to the crop growth, with the highest fl ux during spring (i.e., March–May). Tillage and N fertilization eff ects on soil CO2 fl ux during growing seasons depended on weather conditions: greater soil CO2 fl ux under MT and NT on dry years, greater under CT and MT on a wet year. Nitrogen fertilization aff ected soil CO2 fl ux during this wet growing season: fl ux with N fertilizer additions was higher than fl ux on the unfertilized plots. Th irteen years aft er establishment of the experiment, the soil organic carbon (SOC) stock under long-term NT was 3.9 Mg C ha–1 greater than under CT and 4.3 Mg C ha–1 greater than under MT. Th e SOC stocks with N fertilizer additions were 4 Mg C ha–1 greater than the stock on unfertilized plots. Th e increase of C inputs with N fertilization was more pronounced under NT than under MT or CT. For this reason the increased response of SOC stock to N fertilization is expected under NT in a longer period of time. Th e product between soil water content and soil temperature explained between 75 and 94% of the seasonal variability of soil CO2 fl ux. However, soil CO2 fl ux and SOC stock were hardly related. | |
| dc.description | This work was supported by the Comision Interministerial de Ciencia y Tecnologia of Spain (Grants AGL 2004-07763-C02-02 and AGL2007- 66320-CO2-02/AGR). | |
| dc.language | eng | |
| dc.publisher | Soil Science Society of America | |
| dc.relation | MIECI/PN2004-2007/AGL2004-07763-C02-02 | |
| dc.relation | MIECI/PN2004-2007/AGL2007-66320-C02-02/AGR | |
| dc.relation | Reproducció del document publicat a https://doi.org/10.2136/sssaj2011.0030 | |
| dc.relation | Soil Science Society of America Journal, 2011, vol. 75, núm. 5, p. 1874-1884 | |
| dc.rights | (c) Soil Science Society of America, 2011 | |
| dc.rights | info:eu-repo/semantics/restrictedAccess | |
| dc.subject | Conventional Tillage | |
| dc.subject | Nitrogen level factor | |
| dc.subject | Growing season | |
| dc.title | Soil carbon dioxide flux and organic carbon content: effects of tillage and nitrogen fertilization | |
| dc.type | article | |
| dc.type | publishedVersion |
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