Denitrification in a vertisol under long-term tillage and no-tillage management in dryland agricultural systems: Key genes and potential rates
6 pages, 2 figures, 2 tables, 26 references.
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | artículo biblioteca |
| Language: | English |
| Published: |
Elsevier
2011-03
|
| Subjects: | N2O/N2 ratio, NirK, NirS, NosZ, Real-time PCR, |
| Online Access: | http://hdl.handle.net/10261/44311 http://dx.doi.org/10.13039/501100003339 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
dig-irnas-es-10261-44311 |
|---|---|
| record_format |
koha |
| spelling |
dig-irnas-es-10261-443112016-02-17T07:02:03Z Denitrification in a vertisol under long-term tillage and no-tillage management in dryland agricultural systems: Key genes and potential rates Melero Sánchez, Sebastiana Pérez de Mora, Alfredo Murillo Carpio, José Manuel Buegger, Franz Kleinedam, Kristina Kublik, Susanne Vanderlinden, Karl Moreno Lucas, Félix Schloter, Michael Ministerio de Educación y Ciencia (España) Consejo Superior de Investigaciones Científicas (España) N2O/N2 ratio NirK NirS NosZ Real-time PCR 6 pages, 2 figures, 2 tables, 26 references. The impact of tillage practices on microbial N transformations in Vertisols is poorly understood and data from long-term field experiments are scarce, particularly in semiarid regions. We evaluated the effects of traditional tillage (TT) vs no-tillage (NT) on denitrification in a long-term field experiment under a rainfed crop rotation system (cereal-sunflower-legumes) on a Vertisol (SW Spain). In general, the abundance of denitrifiers and the respective potential denitrification rates was higher under NT compared to TT during the vegetation period, but not after harvesting. However differences in denitrifier numbers were within the same order of magnitude (0.5–3×107 copies g soil dw). The abundance of nitrite reducers and N2O reducers was relatively similar. In addition, N2O/N2 ratios between 1 and 2 were found for both treatments. These results emphasize that NT has a limited impact on denitrification in Vertisols under fertilizer regime and legume-crop rotation and thus losses of N2O are expected to be comparable to those of traditional tillage systems. This work was partly funded by the “Commision Interministerial de Ciencia y Tecnologia (CICYT)” through the project AGL2005-2423 and by the Spanish Ministry of Education and Science through the project INIA RTA2006-00058-CO3-01. Dr. Melero thanks the Spanish Ministry of Science and Education for financial support through the “José Castillejo National Human Resources Mobility Program (I+D+I 2008–2011)” and the Spanish CSIC through the contract program “JAE-DOC”. Peer reviewed 2012-01-16T13:05:59Z 2012-01-16T13:05:59Z 2011-03 artículo http://purl.org/coar/resource_type/c_6501 Applied Soil Ecology 47(3): 221-225 (2011) 0929-1393 http://hdl.handle.net/10261/44311 http://dx.doi.org/10.13039/501100003339 en doi:10.1016/j.apsoil.2010.12.003 http://www.sciencedirect.com/science/article/pii/S092913931000260X none Elsevier |
| institution |
IRNAS ES |
| collection |
DSpace |
| country |
España |
| countrycode |
ES |
| component |
Bibliográfico |
| access |
En linea |
| databasecode |
dig-irnas-es |
| tag |
biblioteca |
| region |
Europa del Sur |
| libraryname |
Biblioteca del IRNAS España |
| language |
English |
| topic |
N2O/N2 ratio NirK NirS NosZ Real-time PCR N2O/N2 ratio NirK NirS NosZ Real-time PCR |
| spellingShingle |
N2O/N2 ratio NirK NirS NosZ Real-time PCR N2O/N2 ratio NirK NirS NosZ Real-time PCR Melero Sánchez, Sebastiana Pérez de Mora, Alfredo Murillo Carpio, José Manuel Buegger, Franz Kleinedam, Kristina Kublik, Susanne Vanderlinden, Karl Moreno Lucas, Félix Schloter, Michael Denitrification in a vertisol under long-term tillage and no-tillage management in dryland agricultural systems: Key genes and potential rates |
| description |
6 pages, 2 figures, 2 tables, 26 references. |
| author2 |
Ministerio de Educación y Ciencia (España) |
| author_facet |
Ministerio de Educación y Ciencia (España) Melero Sánchez, Sebastiana Pérez de Mora, Alfredo Murillo Carpio, José Manuel Buegger, Franz Kleinedam, Kristina Kublik, Susanne Vanderlinden, Karl Moreno Lucas, Félix Schloter, Michael |
| format |
artículo |
| topic_facet |
N2O/N2 ratio NirK NirS NosZ Real-time PCR |
| author |
Melero Sánchez, Sebastiana Pérez de Mora, Alfredo Murillo Carpio, José Manuel Buegger, Franz Kleinedam, Kristina Kublik, Susanne Vanderlinden, Karl Moreno Lucas, Félix Schloter, Michael |
| author_sort |
Melero Sánchez, Sebastiana |
| title |
Denitrification in a vertisol under long-term tillage and no-tillage management in dryland agricultural systems: Key genes and potential rates |
| title_short |
Denitrification in a vertisol under long-term tillage and no-tillage management in dryland agricultural systems: Key genes and potential rates |
| title_full |
Denitrification in a vertisol under long-term tillage and no-tillage management in dryland agricultural systems: Key genes and potential rates |
| title_fullStr |
Denitrification in a vertisol under long-term tillage and no-tillage management in dryland agricultural systems: Key genes and potential rates |
| title_full_unstemmed |
Denitrification in a vertisol under long-term tillage and no-tillage management in dryland agricultural systems: Key genes and potential rates |
| title_sort |
denitrification in a vertisol under long-term tillage and no-tillage management in dryland agricultural systems: key genes and potential rates |
| publisher |
Elsevier |
| publishDate |
2011-03 |
| url |
http://hdl.handle.net/10261/44311 http://dx.doi.org/10.13039/501100003339 |
| work_keys_str_mv |
AT melerosanchezsebastiana denitrificationinavertisolunderlongtermtillageandnotillagemanagementindrylandagriculturalsystemskeygenesandpotentialrates AT perezdemoraalfredo denitrificationinavertisolunderlongtermtillageandnotillagemanagementindrylandagriculturalsystemskeygenesandpotentialrates AT murillocarpiojosemanuel denitrificationinavertisolunderlongtermtillageandnotillagemanagementindrylandagriculturalsystemskeygenesandpotentialrates AT bueggerfranz denitrificationinavertisolunderlongtermtillageandnotillagemanagementindrylandagriculturalsystemskeygenesandpotentialrates AT kleinedamkristina denitrificationinavertisolunderlongtermtillageandnotillagemanagementindrylandagriculturalsystemskeygenesandpotentialrates AT kubliksusanne denitrificationinavertisolunderlongtermtillageandnotillagemanagementindrylandagriculturalsystemskeygenesandpotentialrates AT vanderlindenkarl denitrificationinavertisolunderlongtermtillageandnotillagemanagementindrylandagriculturalsystemskeygenesandpotentialrates AT morenolucasfelix denitrificationinavertisolunderlongtermtillageandnotillagemanagementindrylandagriculturalsystemskeygenesandpotentialrates AT schlotermichael denitrificationinavertisolunderlongtermtillageandnotillagemanagementindrylandagriculturalsystemskeygenesandpotentialrates |
| _version_ |
1777664232274264064 |