Losses of nitrate from a sandy loam soil under corn: lysimeter experiment

6 páginas, 5 figuras, 12 referencias.-- International Symposium on Irrigation of Horticultural Crops, celebrado del 23-27 de noviembre 1992, en Almería, España.

Detalles Bibliográficos
Autores: Cabrera, Francisco, Reyes, A., Fernández Boy, E., Cayuela, José Antonio, Murillo Carpio, José Manuel
Tipo de recurso: artículo
Fecha de publicación:1993
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/60156
Acceso en línea:http://hdl.handle.net/10261/60156
Access Level:acceso abierto
Palabra clave:Irrigation
Kjeldahl-N
Drainage water
Soil water content
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oai_identifier_str oai:digital.csic.es:10261/60156
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spelling Losses of nitrate from a sandy loam soil under corn: lysimeter experimentCabrera, FranciscoReyes, A.Fernández Boy, E.Cayuela, José AntonioMurillo Carpio, José ManuelIrrigationKjeldahl-NDrainage waterSoil water content6 páginas, 5 figuras, 12 referencias.-- International Symposium on Irrigation of Horticultural Crops, celebrado del 23-27 de noviembre 1992, en Almería, España.Losses of nitrate from an undisturbed sandy loam soil contained in two monolith lysimeters, L0 and L1, (1 m diameter, 1.5 m deep) under corn and irrigation (628 mm) were studied. The crop was fertilized with 0 (L0) and 800 (L1) kg N ha-1. Water draining was collected periodically and analysed for nitrate content during the experimental period (20 March 91–23 March 92). Mean values of nitrate concentration in the drainage water were 3.1 and 41.2 mg NO3-N 1-1 in L0 and L1 respectively, the latter much higher than the limit imposed by the EC for potable water (11.3 mg N 1-1). Three periods were distinguished during the experiment: i) Crop season, in which the total volume of water drained was 310 and 47 mm respectively in the L0 and L1, while the nitrate losses were of the same order in both lysimeters (21 and 17 kg N ha-1, respectively); ii) Dry season, in which there was no water drainage; and iii) Rainy season, in which the total drained water was 157 and 139 mm, and the nitrate losses 5 and 91 kg N ha-1 in L0 and L1 respectively. The greater amount of water drained in L0 is due to the lower crop development (grain yield 4.4 and 21.3 t ha-1; total nitrogen plant uptake 69 and 400 kg N ha-1, in L0 and L1 respectively). Total nitrate losses in L1 account for 13% of the nitrogen fertilizer applied. Most of these losses occur in the rainy season. At the end of the experimental period a decrease of the soil nitrate content was observed in both lysimeters.Research carried out in the framework of contract No. STEP-CT90-0032-C (DSCN) of the CE.Peer ReviewedInternational Society for Horticultural Science2012201219932012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/60156reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/601562026-05-22T06:33:51Z
dc.title.none.fl_str_mv Losses of nitrate from a sandy loam soil under corn: lysimeter experiment
title Losses of nitrate from a sandy loam soil under corn: lysimeter experiment
spellingShingle Losses of nitrate from a sandy loam soil under corn: lysimeter experiment
Cabrera, Francisco
Irrigation
Kjeldahl-N
Drainage water
Soil water content
title_short Losses of nitrate from a sandy loam soil under corn: lysimeter experiment
title_full Losses of nitrate from a sandy loam soil under corn: lysimeter experiment
title_fullStr Losses of nitrate from a sandy loam soil under corn: lysimeter experiment
title_full_unstemmed Losses of nitrate from a sandy loam soil under corn: lysimeter experiment
title_sort Losses of nitrate from a sandy loam soil under corn: lysimeter experiment
dc.creator.none.fl_str_mv Cabrera, Francisco
Reyes, A.
Fernández Boy, E.
Cayuela, José Antonio
Murillo Carpio, José Manuel
author Cabrera, Francisco
author_facet Cabrera, Francisco
Reyes, A.
Fernández Boy, E.
Cayuela, José Antonio
Murillo Carpio, José Manuel
author_role author
author2 Reyes, A.
Fernández Boy, E.
Cayuela, José Antonio
Murillo Carpio, José Manuel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Irrigation
Kjeldahl-N
Drainage water
Soil water content
topic Irrigation
Kjeldahl-N
Drainage water
Soil water content
description 6 páginas, 5 figuras, 12 referencias.-- International Symposium on Irrigation of Horticultural Crops, celebrado del 23-27 de noviembre 1992, en Almería, España.
publishDate 1993
dc.date.none.fl_str_mv 1993
2012
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/60156
url http://hdl.handle.net/10261/60156
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv International Society for Horticultural Science
publisher.none.fl_str_mv International Society for Horticultural Science
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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