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Nitrate accumulation in the soil profile: long-term effects of tillage, rotation and N rate in a Mediterranean Vertisol
dc.contributor.author | López Bellido, Luis | |
dc.contributor.author | Muñoz-Romero, Verónica | |
dc.contributor.author | López-Bellido Garrido, Rafael J. | |
dc.date.accessioned | 2024-01-10T13:52:54Z | |
dc.date.available | 2024-01-10T13:52:54Z | |
dc.date.issued | 2013 | |
dc.identifier.issn | 1879-3444 | |
dc.identifier.uri | http://hdl.handle.net/10396/26485 | |
dc.description.abstract | Excessive application of fertiliser in agriculture can have detrimental effects, one of which is diffuse contamination with nitrates. An 18-year field study was conducted on a typical rainfed Mediterranean Vertisol to determine the effects of the tillage system, crop rotation and N fertiliser rate on the long-term NO3−-N content in the soil profile (0–90 cm). The experiment was designed as a randomised complete block with a split-split plot arrangement and 3 replications. The main plots tested the effects of the tillage system (no-tillage and conventional tillage); the subplots tested crop rotation, with 2-year rotations (wheat–wheat, wheat–fallow, wheat–chickpea, wheat–faba bean and wheat–sunflower); and the sub-subplots tested the N fertiliser rate (0, 50, 100 and 150 kg N ha−1). The nitrate content increased with time. The tillage system showed an inconsistent effect on nitrates, although, overall, nitrate levels were higher under conventional tillage than with no-tillage. The wheat–faba bean rotation induced a larger accumulation of soil nitrates. Nitrates usually accumulated to a greater extent in the 30–60-cm depth of soil. As a rule, farmers should know the amount of residual N existing in the soil prior to crop fertilisation in order to avoid over-fertilisation. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Science Direct | es_ES |
dc.rights | https://creativecommons.org/licenses/by-nc-nd/4.0/ | es_ES |
dc.source | Soil and Tillage Research; Vol. 130, Pages 18-23 (2013) | es_ES |
dc.subject | No-tillage | es_ES |
dc.subject | Wheat | es_ES |
dc.subject | Faba-bean | es_ES |
dc.subject | Chickpea | es_ES |
dc.subject | Sunflower | es_ES |
dc.subject | Rainfed | es_ES |
dc.title | Nitrate accumulation in the soil profile: long-term effects of tillage, rotation and N rate in a Mediterranean Vertisol | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.still.2013.02.002 | es_ES |
dc.relation.projectID | Unión Europea. AGF95-0553 | es_ES |
dc.relation.projectID | Unión Europea. AGF95-0553AGF97-0498 | es_ES |
dc.relation.projectID | Unión Europea. AGL2000-0460 | es_ES |
dc.relation.projectID | Unión Europea. AGL2003-03581 | es_ES |
dc.relation.projectID | Unión Europea. AGL2006-02127/AGR | es_ES |
dc.relation.projectID | Unión Europea. AGL2009-07854 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |