Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamics
- Autores
- Restovich, Silvina Beatriz; Andriulo, Adrian Enrique; Portela, Silvina Isabel
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The agricultural system of the Humid Pampas consists of continuous cropping of soybean and maize under no tillage. This system may loose nitrogen (N) through leaching during the early and final stages of summer crops and during fallow. In this study (2005–2011) we evaluated the effect of fall–winter species (rescue grass, ryegrass, oats, barley, vetch, rape seed and forage radish) and a mixture of vetch and oats used as cover crops on water and N dynamics and main crop yield. Above-ground biomass production and N uptake by cover crops ranged from 1.1 to 11.9 Mg ha−1 and from 17 to 223 kg N ha−1, respectively, depending on sowing and killing dates and on the preceding crop. At killing, soil nitrate content in treatments with cover crops was 50–90% lower than in the control, reducing spring N leaching risk. When preceding maize, cover crops were killed in winter or early spring and their low C/N ratio (12–38) favored N release through residue decomposition. Vetch and rape seed as predecessors of fertilized maize increased residual N by ≈50 kg NO3-N compared to the control, posing the risk of fall N leaching. When preceding soybean, cover crops were killed in spring and, although their C/N ratios were higher (13–85), crucifers and legumes increased soil nitrate content. Maize yield was related to soil N availability at sowing (control and legumes > crucifers > grasses) which was inversely related to the preceding cover crop C/N ratio at killing. In normal to high rainfall years there were no differences in soybean yield among treatments. Water use by cover crops did not affect the main crop production except during an exceptionally dry year. Best synchronicity between N release from cover crop residues and harvest crop demand was achieved with the oats–vetch mixture before maize and with grasses before soybean.
EEA Pergamino
Fil: Restovich, Silvina B. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Suelos; Argentina
Fil: Andriulo, Adrián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio de Suelo; Argentina
Fil: Portela, Silvina Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Suelos; Argentina - Fuente
- Field Crops Research 128 (14) : 62-70. ( March 2012)
- Materia
-
Maíz
Soja
Plantas de Cobertura
Cobertura de Suelos
Lixiviación
Nitratos
Residuos
Agua
Maize
Soybeans
Cover Plants
Land Cover
Lixiviation
Nitrates
Residues
Water
Región Pampeana Húmeda
Cultivos de Cobertura - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/7200
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Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamicsRestovich, Silvina BeatrizAndriulo, Adrian EnriquePortela, Silvina IsabelMaízSojaPlantas de CoberturaCobertura de SuelosLixiviaciónNitratosResiduosAguaMaizeSoybeansCover PlantsLand CoverLixiviationNitratesResiduesWaterRegión Pampeana HúmedaCultivos de CoberturaThe agricultural system of the Humid Pampas consists of continuous cropping of soybean and maize under no tillage. This system may loose nitrogen (N) through leaching during the early and final stages of summer crops and during fallow. In this study (2005–2011) we evaluated the effect of fall–winter species (rescue grass, ryegrass, oats, barley, vetch, rape seed and forage radish) and a mixture of vetch and oats used as cover crops on water and N dynamics and main crop yield. Above-ground biomass production and N uptake by cover crops ranged from 1.1 to 11.9 Mg ha−1 and from 17 to 223 kg N ha−1, respectively, depending on sowing and killing dates and on the preceding crop. At killing, soil nitrate content in treatments with cover crops was 50–90% lower than in the control, reducing spring N leaching risk. When preceding maize, cover crops were killed in winter or early spring and their low C/N ratio (12–38) favored N release through residue decomposition. Vetch and rape seed as predecessors of fertilized maize increased residual N by ≈50 kg NO3-N compared to the control, posing the risk of fall N leaching. When preceding soybean, cover crops were killed in spring and, although their C/N ratios were higher (13–85), crucifers and legumes increased soil nitrate content. Maize yield was related to soil N availability at sowing (control and legumes > crucifers > grasses) which was inversely related to the preceding cover crop C/N ratio at killing. In normal to high rainfall years there were no differences in soybean yield among treatments. Water use by cover crops did not affect the main crop production except during an exceptionally dry year. Best synchronicity between N release from cover crop residues and harvest crop demand was achieved with the oats–vetch mixture before maize and with grasses before soybean.EEA PergaminoFil: Restovich, Silvina B. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Suelos; ArgentinaFil: Andriulo, Adrián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio de Suelo; ArgentinaFil: Portela, Silvina Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Suelos; ArgentinaElsevier2020-05-06T18:11:07Z2020-05-06T18:11:07Z2012-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/7200https://www.sciencedirect.com/science/article/pii/S03784290110041630378-4290https://doi.org/10.1016/j.fcr.2011.12.012Field Crops Research 128 (14) : 62-70. ( March 2012)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-04T09:48:25Zoai:localhost:20.500.12123/7200instacron: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 09:48:26.256INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamics |
title |
Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamics |
spellingShingle |
Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamics Restovich, Silvina Beatriz Maíz Soja Plantas de Cobertura Cobertura de Suelos Lixiviación Nitratos Residuos Agua Maize Soybeans Cover Plants Land Cover Lixiviation Nitrates Residues Water Región Pampeana Húmeda Cultivos de Cobertura |
title_short |
Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamics |
title_full |
Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamics |
title_fullStr |
Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamics |
title_full_unstemmed |
Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamics |
title_sort |
Introduction of cover crops in a maize–soybean rotation of the Humid Pampas: Effect on nitrogen and water dynamics |
dc.creator.none.fl_str_mv |
Restovich, Silvina Beatriz Andriulo, Adrian Enrique Portela, Silvina Isabel |
author |
Restovich, Silvina Beatriz |
author_facet |
Restovich, Silvina Beatriz Andriulo, Adrian Enrique Portela, Silvina Isabel |
author_role |
author |
author2 |
Andriulo, Adrian Enrique Portela, Silvina Isabel |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Maíz Soja Plantas de Cobertura Cobertura de Suelos Lixiviación Nitratos Residuos Agua Maize Soybeans Cover Plants Land Cover Lixiviation Nitrates Residues Water Región Pampeana Húmeda Cultivos de Cobertura |
topic |
Maíz Soja Plantas de Cobertura Cobertura de Suelos Lixiviación Nitratos Residuos Agua Maize Soybeans Cover Plants Land Cover Lixiviation Nitrates Residues Water Región Pampeana Húmeda Cultivos de Cobertura |
dc.description.none.fl_txt_mv |
The agricultural system of the Humid Pampas consists of continuous cropping of soybean and maize under no tillage. This system may loose nitrogen (N) through leaching during the early and final stages of summer crops and during fallow. In this study (2005–2011) we evaluated the effect of fall–winter species (rescue grass, ryegrass, oats, barley, vetch, rape seed and forage radish) and a mixture of vetch and oats used as cover crops on water and N dynamics and main crop yield. Above-ground biomass production and N uptake by cover crops ranged from 1.1 to 11.9 Mg ha−1 and from 17 to 223 kg N ha−1, respectively, depending on sowing and killing dates and on the preceding crop. At killing, soil nitrate content in treatments with cover crops was 50–90% lower than in the control, reducing spring N leaching risk. When preceding maize, cover crops were killed in winter or early spring and their low C/N ratio (12–38) favored N release through residue decomposition. Vetch and rape seed as predecessors of fertilized maize increased residual N by ≈50 kg NO3-N compared to the control, posing the risk of fall N leaching. When preceding soybean, cover crops were killed in spring and, although their C/N ratios were higher (13–85), crucifers and legumes increased soil nitrate content. Maize yield was related to soil N availability at sowing (control and legumes > crucifers > grasses) which was inversely related to the preceding cover crop C/N ratio at killing. In normal to high rainfall years there were no differences in soybean yield among treatments. Water use by cover crops did not affect the main crop production except during an exceptionally dry year. Best synchronicity between N release from cover crop residues and harvest crop demand was achieved with the oats–vetch mixture before maize and with grasses before soybean. EEA Pergamino Fil: Restovich, Silvina B. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Suelos; Argentina Fil: Andriulo, Adrián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio de Suelo; Argentina Fil: Portela, Silvina Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Laboratorio de Suelos; Argentina |
description |
The agricultural system of the Humid Pampas consists of continuous cropping of soybean and maize under no tillage. This system may loose nitrogen (N) through leaching during the early and final stages of summer crops and during fallow. In this study (2005–2011) we evaluated the effect of fall–winter species (rescue grass, ryegrass, oats, barley, vetch, rape seed and forage radish) and a mixture of vetch and oats used as cover crops on water and N dynamics and main crop yield. Above-ground biomass production and N uptake by cover crops ranged from 1.1 to 11.9 Mg ha−1 and from 17 to 223 kg N ha−1, respectively, depending on sowing and killing dates and on the preceding crop. At killing, soil nitrate content in treatments with cover crops was 50–90% lower than in the control, reducing spring N leaching risk. When preceding maize, cover crops were killed in winter or early spring and their low C/N ratio (12–38) favored N release through residue decomposition. Vetch and rape seed as predecessors of fertilized maize increased residual N by ≈50 kg NO3-N compared to the control, posing the risk of fall N leaching. When preceding soybean, cover crops were killed in spring and, although their C/N ratios were higher (13–85), crucifers and legumes increased soil nitrate content. Maize yield was related to soil N availability at sowing (control and legumes > crucifers > grasses) which was inversely related to the preceding cover crop C/N ratio at killing. In normal to high rainfall years there were no differences in soybean yield among treatments. Water use by cover crops did not affect the main crop production except during an exceptionally dry year. Best synchronicity between N release from cover crop residues and harvest crop demand was achieved with the oats–vetch mixture before maize and with grasses before soybean. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-03 2020-05-06T18:11:07Z 2020-05-06T18:11:07Z |
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 |
http://hdl.handle.net/20.500.12123/7200 https://www.sciencedirect.com/science/article/pii/S0378429011004163 0378-4290 https://doi.org/10.1016/j.fcr.2011.12.012 |
url |
http://hdl.handle.net/20.500.12123/7200 https://www.sciencedirect.com/science/article/pii/S0378429011004163 https://doi.org/10.1016/j.fcr.2011.12.012 |
identifier_str_mv |
0378-4290 |
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 |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
Field Crops Research 128 (14) : 62-70. ( March 2012) 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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1842341378112094208 |
score |
12.623145 |