Gross nitrogen mineralization and immobilization in temperate maize-soybean intercrops

Autores
Regehr, Alison; Oelbermann, Maren; Videla, Cecilia; Echarte, Laura
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Background and aims: Reliance on nitrogen (N) fertilizers to maintain crop productivity requires a thorough understanding of the transformation of this nutrient within the soil-plant system. Organic matter input from a mixture of crop residues, such intercrop systems, influence N transformations differently compared to sole crops. We tested the hypothesis that N mineralization and immobilization differ between cereal-legume intercrops and sole crops. Methods: A short-term experiment using 15N isotopic pool dilution was conducted in 2007 and 2012 in maize (Zea mays L.) and soybean (Glycine max L. Merr.) sole crops and 1:2 (1 row maize:2 rows soybean) and 2:3 (two rows maize:3 rows soybean) intercrops. Soil characteristics, gross mineralization and immobilization, and net immobilization to a 10 cm depth were quantified. Results: Soil characteristics (pH, bulk density, soil organic carbon (C), total N, and C:N) were not significantly different (P < 0.05) among treatments, but differed significantly (P < 0.05) between years (2007 vs. 2012). Soil NH4 +-N was significantly lower (P < 0.05) in the maize sole crop. Gross N mineralization, immobilization and net immobilization, were significantly different (P < 0.05) among treatments and between years. Relative NH4 +-N immobilization was significantly different (P < 0.05) among treatments and between years, showing the lowest values in the intercrops. The amount of NH4 +-N mineralized per day was significantly greater (P < 0.05) in the 2:3 intercrop and was significantly different (P < 0.05) between years in the 2:3 intercrop. Residence time of NH4 +-N was significantly longer (P < 0.05) in the soybean sole crop and 1:2 intercrop followed by the 2:3 intercrop and the maize sole crop. Conclusions: Intercropping contributed to the long-term immobilization of N and therefore was a more sustainable land-management practice than sole cropping. The adoption of cereal-legume intercrops will curb our currently growing reliance on N fertilizers.
EEA Balcarce
Fil: Regehr, Alison. University of Waterloo. Department of Environment and Resource Studies; Canadá
Fil: Oelbermann, Maren. University of Waterloo. Department of Environment and Resource Studies; Canadá
Fil: Videla, Cecilia. Universidad Nacional de Mar del Plata; Argentina
Fil: Echarte, Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fuente
Plant and Soil 391 (1–2) : 353–365 (June 2015)
Materia
Nitrógeno
Abonos Nitrogenados
Mineralización
Maíz
Soja
Cultivo Intercalado
Nitrogen
Nitrogen Fertilizers
Mineralization
Maize
Soybeans
Intercropping
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/4224

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oai_identifier_str oai:localhost:20.500.12123/4224
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Gross nitrogen mineralization and immobilization in temperate maize-soybean intercropsRegehr, AlisonOelbermann, MarenVidela, CeciliaEcharte, LauraNitrógenoAbonos NitrogenadosMineralizaciónMaízSojaCultivo IntercaladoNitrogenNitrogen FertilizersMineralizationMaizeSoybeansIntercroppingBackground and aims: Reliance on nitrogen (N) fertilizers to maintain crop productivity requires a thorough understanding of the transformation of this nutrient within the soil-plant system. Organic matter input from a mixture of crop residues, such intercrop systems, influence N transformations differently compared to sole crops. We tested the hypothesis that N mineralization and immobilization differ between cereal-legume intercrops and sole crops. Methods: A short-term experiment using 15N isotopic pool dilution was conducted in 2007 and 2012 in maize (Zea mays L.) and soybean (Glycine max L. Merr.) sole crops and 1:2 (1 row maize:2 rows soybean) and 2:3 (two rows maize:3 rows soybean) intercrops. Soil characteristics, gross mineralization and immobilization, and net immobilization to a 10 cm depth were quantified. Results: Soil characteristics (pH, bulk density, soil organic carbon (C), total N, and C:N) were not significantly different (P < 0.05) among treatments, but differed significantly (P < 0.05) between years (2007 vs. 2012). Soil NH4 +-N was significantly lower (P < 0.05) in the maize sole crop. Gross N mineralization, immobilization and net immobilization, were significantly different (P < 0.05) among treatments and between years. Relative NH4 +-N immobilization was significantly different (P < 0.05) among treatments and between years, showing the lowest values in the intercrops. The amount of NH4 +-N mineralized per day was significantly greater (P < 0.05) in the 2:3 intercrop and was significantly different (P < 0.05) between years in the 2:3 intercrop. Residence time of NH4 +-N was significantly longer (P < 0.05) in the soybean sole crop and 1:2 intercrop followed by the 2:3 intercrop and the maize sole crop. Conclusions: Intercropping contributed to the long-term immobilization of N and therefore was a more sustainable land-management practice than sole cropping. The adoption of cereal-legume intercrops will curb our currently growing reliance on N fertilizers.EEA BalcarceFil: Regehr, Alison. University of Waterloo. Department of Environment and Resource Studies; CanadáFil: Oelbermann, Maren. University of Waterloo. Department of Environment and Resource Studies; CanadáFil: Videla, Cecilia. Universidad Nacional de Mar del Plata; ArgentinaFil: Echarte, Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaSpringer2019-01-08T11:54:46Z2019-01-08T11:54:46Z2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://link.springer.com/article/10.1007/s11104-015-2438-0http://hdl.handle.net/20.500.12123/42240032-079X1573-5036https://doi.org/10.1007/s11104-015-2438-0Plant and Soil 391 (1–2) : 353–365 (June 2015)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-04T09:47:46Zoai:localhost:20.500.12123/4224instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:47:46.463INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Gross nitrogen mineralization and immobilization in temperate maize-soybean intercrops
title Gross nitrogen mineralization and immobilization in temperate maize-soybean intercrops
spellingShingle Gross nitrogen mineralization and immobilization in temperate maize-soybean intercrops
Regehr, Alison
Nitrógeno
Abonos Nitrogenados
Mineralización
Maíz
Soja
Cultivo Intercalado
Nitrogen
Nitrogen Fertilizers
Mineralization
Maize
Soybeans
Intercropping
title_short Gross nitrogen mineralization and immobilization in temperate maize-soybean intercrops
title_full Gross nitrogen mineralization and immobilization in temperate maize-soybean intercrops
title_fullStr Gross nitrogen mineralization and immobilization in temperate maize-soybean intercrops
title_full_unstemmed Gross nitrogen mineralization and immobilization in temperate maize-soybean intercrops
title_sort Gross nitrogen mineralization and immobilization in temperate maize-soybean intercrops
dc.creator.none.fl_str_mv Regehr, Alison
Oelbermann, Maren
Videla, Cecilia
Echarte, Laura
author Regehr, Alison
author_facet Regehr, Alison
Oelbermann, Maren
Videla, Cecilia
Echarte, Laura
author_role author
author2 Oelbermann, Maren
Videla, Cecilia
Echarte, Laura
author2_role author
author
author
dc.subject.none.fl_str_mv Nitrógeno
Abonos Nitrogenados
Mineralización
Maíz
Soja
Cultivo Intercalado
Nitrogen
Nitrogen Fertilizers
Mineralization
Maize
Soybeans
Intercropping
topic Nitrógeno
Abonos Nitrogenados
Mineralización
Maíz
Soja
Cultivo Intercalado
Nitrogen
Nitrogen Fertilizers
Mineralization
Maize
Soybeans
Intercropping
dc.description.none.fl_txt_mv Background and aims: Reliance on nitrogen (N) fertilizers to maintain crop productivity requires a thorough understanding of the transformation of this nutrient within the soil-plant system. Organic matter input from a mixture of crop residues, such intercrop systems, influence N transformations differently compared to sole crops. We tested the hypothesis that N mineralization and immobilization differ between cereal-legume intercrops and sole crops. Methods: A short-term experiment using 15N isotopic pool dilution was conducted in 2007 and 2012 in maize (Zea mays L.) and soybean (Glycine max L. Merr.) sole crops and 1:2 (1 row maize:2 rows soybean) and 2:3 (two rows maize:3 rows soybean) intercrops. Soil characteristics, gross mineralization and immobilization, and net immobilization to a 10 cm depth were quantified. Results: Soil characteristics (pH, bulk density, soil organic carbon (C), total N, and C:N) were not significantly different (P < 0.05) among treatments, but differed significantly (P < 0.05) between years (2007 vs. 2012). Soil NH4 +-N was significantly lower (P < 0.05) in the maize sole crop. Gross N mineralization, immobilization and net immobilization, were significantly different (P < 0.05) among treatments and between years. Relative NH4 +-N immobilization was significantly different (P < 0.05) among treatments and between years, showing the lowest values in the intercrops. The amount of NH4 +-N mineralized per day was significantly greater (P < 0.05) in the 2:3 intercrop and was significantly different (P < 0.05) between years in the 2:3 intercrop. Residence time of NH4 +-N was significantly longer (P < 0.05) in the soybean sole crop and 1:2 intercrop followed by the 2:3 intercrop and the maize sole crop. Conclusions: Intercropping contributed to the long-term immobilization of N and therefore was a more sustainable land-management practice than sole cropping. The adoption of cereal-legume intercrops will curb our currently growing reliance on N fertilizers.
EEA Balcarce
Fil: Regehr, Alison. University of Waterloo. Department of Environment and Resource Studies; Canadá
Fil: Oelbermann, Maren. University of Waterloo. Department of Environment and Resource Studies; Canadá
Fil: Videla, Cecilia. Universidad Nacional de Mar del Plata; Argentina
Fil: Echarte, Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Background and aims: Reliance on nitrogen (N) fertilizers to maintain crop productivity requires a thorough understanding of the transformation of this nutrient within the soil-plant system. Organic matter input from a mixture of crop residues, such intercrop systems, influence N transformations differently compared to sole crops. We tested the hypothesis that N mineralization and immobilization differ between cereal-legume intercrops and sole crops. Methods: A short-term experiment using 15N isotopic pool dilution was conducted in 2007 and 2012 in maize (Zea mays L.) and soybean (Glycine max L. Merr.) sole crops and 1:2 (1 row maize:2 rows soybean) and 2:3 (two rows maize:3 rows soybean) intercrops. Soil characteristics, gross mineralization and immobilization, and net immobilization to a 10 cm depth were quantified. Results: Soil characteristics (pH, bulk density, soil organic carbon (C), total N, and C:N) were not significantly different (P < 0.05) among treatments, but differed significantly (P < 0.05) between years (2007 vs. 2012). Soil NH4 +-N was significantly lower (P < 0.05) in the maize sole crop. Gross N mineralization, immobilization and net immobilization, were significantly different (P < 0.05) among treatments and between years. Relative NH4 +-N immobilization was significantly different (P < 0.05) among treatments and between years, showing the lowest values in the intercrops. The amount of NH4 +-N mineralized per day was significantly greater (P < 0.05) in the 2:3 intercrop and was significantly different (P < 0.05) between years in the 2:3 intercrop. Residence time of NH4 +-N was significantly longer (P < 0.05) in the soybean sole crop and 1:2 intercrop followed by the 2:3 intercrop and the maize sole crop. Conclusions: Intercropping contributed to the long-term immobilization of N and therefore was a more sustainable land-management practice than sole cropping. The adoption of cereal-legume intercrops will curb our currently growing reliance on N fertilizers.
publishDate 2015
dc.date.none.fl_str_mv 2015-06
2019-01-08T11:54:46Z
2019-01-08T11:54:46Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://link.springer.com/article/10.1007/s11104-015-2438-0
http://hdl.handle.net/20.500.12123/4224
0032-079X
1573-5036
https://doi.org/10.1007/s11104-015-2438-0
url https://link.springer.com/article/10.1007/s11104-015-2438-0
http://hdl.handle.net/20.500.12123/4224
https://doi.org/10.1007/s11104-015-2438-0
identifier_str_mv 0032-079X
1573-5036
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Plant and Soil 391 (1–2) : 353–365 (June 2015)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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