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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Plaza-Bonilla, Daniel | - |
dc.contributor.author | Álvaro-Fuentes, Jorge | - |
dc.contributor.author | Cantero-Martínez, Carlos | - |
dc.date.accessioned | 2013-04-03T11:10:12Z | - |
dc.date.available | 2013-04-03T11:10:12Z | - |
dc.date.issued | 2013-01 | - |
dc.identifier.citation | Plaza-Bonilla D, Álvaro-Fuentes J, Cantero-Martínez C. Soil aggregate stability as affected by fertilization type under semiarid no-tillage conditions. Soil Science Society of America Journal 77 (1): 284-292 (2013) | es_ES |
dc.identifier.issn | 0361-5995 | - |
dc.identifier.uri | http://hdl.handle.net/10261/73500 | - |
dc.description | 9 Pags., 4 Tabls., 3 Figs. | es_ES |
dc.description.abstract | Agricultural management practices play an important role in soil organic carbon (SOC) protection within soil aggregates. However, there is a lack of information on the effects of N fertilization on C protection within aggregates under no-tillage (NT) systems. The effects of organic fertilization (with pig [Sus scrofa] slurry and poultry manure) and mineral N fertilization on soil aggregation and physical C protection dynamics under NT soils were investigated. Two experiments were established in a semiarid area of northeastern Spain. In the organic fertilization experiment, treatment with pig slurry at two N rates (100 and 200 kg N ha−1), poultry manure (100 kg N ha−1), and a control (0 kg N ha−1) treatment were compared. In the mineral fertilization experiment, increasing rates of N fertilizer (0, 40, 80, 120, and 160 kg N ha−1) were compared. Water-stable macroaggregates (>0.250 mm) and their C concentration, the distribution of dry-sieved aggregates, total SOC and microbial biomass carbon (MBC) were quantified in the soil surface in two cropping seasons. Organic fertilizers slightly increased the proportion of water-stable macroaggregates but caused no differences in MBC, SOC, or water-stable macroaggregate C concentration. In the mineral N fertilization experiment, similar water-stable macroaggregate, water-stable macroaggregate C and SOC concentrations were observed among N fertilizer doses. Overall differences in water-stable macroaggregates between sampling dates were greater than differences between fertilization treatments. Our study demonstrates that, in the short-term, the use of organic or mineral N fertilizers hardly improves the stability of the macroaggregates and their C protective capacity when NT is performed. This finding could be related to the limitations imposed by water in the Mediterranean areas and the buffering effect of long-term NT adoption on soil aggregate stability and C protection. | es_ES |
dc.description.sponsorship | D. Plaza-Bonilla was awarded an FPU fellowship by the Spanish Ministry of Education. This research was supported by the Comision Interministerial de Ciencia y Tecnología of Spain (AGL 2007-66320-C02-01 and AGL 2010-22050-C03-01). | es_ES |
dc.language.iso | eng | es_ES |
dc.rights | openAccess | es_ES |
dc.title | Soil aggregate stability as affected by fertilization type under semiarid no-tillage conditions | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.2136/sssaj2012.0258 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.2136/sssaj2012.0258 | es_ES |
dc.identifier.e-issn | 1435-0661 | - |
dc.embargo.terms | 2014-07-01 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
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