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Título

Changes in soil enzyme activity, fertility, aggregation and C sequestration mediated by conservation tillage practices and water regime in a maize field

AutorRoldán Garrigos, Antonio ; Salinas-García, J. R.; Alguacil García, María del Mar ; Caravaca Ballester, María Fuensanta
Palabras claveEnzyme activities
Structural stability
Labile organic C
No-tillage
Zero-tillage
Fecha de publicaciónsep-2005
EditorElsevier
CitaciónApplied Soil Ecology 30(1): 11-20 (2005)
ResumenWe examined the medium-term (3 year) effects of no-tillage, reduced tillage (subsoil-bedding and shred-bedding) and water regime on the soil profile distribution of organic matter and physical and microbiological soil quality indicators in a maize field under subtropical conditions. Soil carbon sequestration was evaluated as well. Residue on the soil surface was about 17–21-fold increased in the no-tillage plots over the mouldboard plough plots, with intermediate increases in the reduced tillage plots. In the surface 0–5 cm, organic matter decreased with increasing tillage and was increased by irrigation. The no-tilled soil had increased values of water-soluble C, dehydrogenase, urease and acid phosphatase activities, aggregate stability and glomalin compared to tilled soils, especially in the shallowest (0–5 cm) layer. The water regime had no effect on soil structural stability or total microbial activity.
Descripción10 pages, 5 tables, 2 figures.
Versión del editorhttp://dx.doi.org/10.1016/j.apsoil.2005.01.004
URIhttp://hdl.handle.net/10261/16472
DOI10.1016/j.apsoil.2005.01.004
ISSN0929-1393
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