English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/80597
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Changes in soil properties and humic substances after long-term amendments with manure and crop residues in dryland farming systems.

AuthorsDorado, José CSIC ORCID ; Zancada Fernández, M. Cristina  ; Almendros Martín, Gonzalo CSIC ORCID ; López-Fando, Cristina CSIC
Issue Date2003
PublisherWiley-VCH
CitationJournal of Plant Nutrition and Soil Science 166: 31- 38 (2003)
AbstractAfter 16 years of periodical applications of either farmyard manure or crop wastes at two levels of mineral N fertilization to a Calcic Haploxeralf in the semiarid central Spain, we found significant changes in chemical fertility levels and in the concentration, chemical composition, and carbon mineralization rates of soil organic matter (SOM). The changes in SOM quality were related to significant improvements of soil physical properties, mainly aggregate stability and water retention. Such changes were related to the increased concentration of humic colloids in soil, the mineral N dose, and the type of organic matter applied. When compared with the control plots, the organic matter accumulated in the amended plots tended to be less transformed, and its total concentration and humification degree decreased with increasing external N-inputs. Humic acids from the amended plots showed a more marked aliphatic character (mainly after N addition) than those from control plots. Farmyard manure led to a significant improvement of soil physical properties, but had a comparatively small effect in promoting biodegradation and humification of crop wastes. This could be due to the high biological stability of the manure used which, in semiarid Mediterranean fields, usually leads to an accumulation of little transformed SOM
URIhttp://hdl.handle.net/10261/80597
DOIhttp://dx.doi.org/10.1002/jpln.200390009
Identifiersissn: 1436-8730
Appears in Collections:(CCMA) Artículos
Files in This Item:
File Description SizeFormat 
31_ftpZancada.pdf114,21 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.