Effect of different cover crops on C and N cycling in sorghum NT systems

Autores
Frasier, Ileana; Quiroga, Alberto Raul; Noellemeyer, Elke
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
In many no-till (NT) systems, residue input is low and fallow periods excessive, for which reasons soil degradation occurs. Cover crops could improve organic matter, biological activity, and soil structure. In order to study changes in soil carbon, nitrogen and microbial biomass a field experiment (2010 − 2012) was set up with sorghum (Sorghum bicolor Moench.) monoculture and with cover crops. Treatments were control (NT with bare fallow), rye (Secale cereale L.) (R), rye with nitrogen fertilization (R + N), vetch (Vicia villosa Roth.) (V), and rye-vetch mixture (VR) cover crops. A completely randomized block design with 4 replicates was used. Soil was sampled once a year at 0.06 and 0.12 m depth for total C, microbial biomass carbon (MBC) and-nitrogen (MBN) determinations. Shoot and root biomass of sorghum and cover crops, litter biomass, and their respective carbon and nitrogen contents were determined. Soil temperatures at 0.06 and 0.12 m depth, volumetric water contents and nitrate concentrations were determined at sowing, and harvest of each crop, and during sorghum's vegetative phase. NT led to a small increase in MBC and MBN, despite low litter and root biomass residue. Cover crops increased litter, root biomass, total C, MBC, and MBN. Relationships between MBC, MBN, and root-C and –N adjusted to logistic models (R2 = 0.61 and 0.43 for C and N respectively). Litter cover improved soil moisture to 45–50% water filled pore space and soil temperatures not exceeding 25 °C during the warmest month. Microbial biomass stabilized at 20.1 g C m− 2 and 1.9 g N m− 2 in the upper 0.06 m. Soil litter disappearance was a good indicator of mineral N availability. These findings support the view that cover crops, specifically legumes in NT systems can increase soil ecosystem services related to water and carbon storage, habitat for biodiversity, and nutrient availability.
EEA Anguil
Fil: Frasier, Ileana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
Fil: Quiroga, Alberto Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
Fil: Noellemeyer, Elke. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
Fuente
Science of the total environment 562 : 628-639. (August 2016)
Materia
Plantas de Cobertura
Sorgos
Sorghum
Nitrógeno
Carbón
Cero-Labranza
Cover Plants
Nitrogen
Coil
Zero Tillage
Cultivos de Cobertura
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/1088
Acceder
id INTADig_858590e55c9839257f93db138e75604f
oai_identifier_str oai:localhost:20.500.12123/1088
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Effect of different cover crops on C and N cycling in sorghum NT systemsFrasier, IleanaQuiroga, Alberto RaulNoellemeyer, ElkePlantas de CoberturaSorgosSorghumNitrógenoCarbónCero-LabranzaCover PlantsNitrogenCoilZero TillageCultivos de CoberturaIn many no-till (NT) systems, residue input is low and fallow periods excessive, for which reasons soil degradation occurs. Cover crops could improve organic matter, biological activity, and soil structure. In order to study changes in soil carbon, nitrogen and microbial biomass a field experiment (2010 − 2012) was set up with sorghum (Sorghum bicolor Moench.) monoculture and with cover crops. Treatments were control (NT with bare fallow), rye (Secale cereale L.) (R), rye with nitrogen fertilization (R + N), vetch (Vicia villosa Roth.) (V), and rye-vetch mixture (VR) cover crops. A completely randomized block design with 4 replicates was used. Soil was sampled once a year at 0.06 and 0.12 m depth for total C, microbial biomass carbon (MBC) and-nitrogen (MBN) determinations. Shoot and root biomass of sorghum and cover crops, litter biomass, and their respective carbon and nitrogen contents were determined. Soil temperatures at 0.06 and 0.12 m depth, volumetric water contents and nitrate concentrations were determined at sowing, and harvest of each crop, and during sorghum's vegetative phase. NT led to a small increase in MBC and MBN, despite low litter and root biomass residue. Cover crops increased litter, root biomass, total C, MBC, and MBN. Relationships between MBC, MBN, and root-C and –N adjusted to logistic models (R2 = 0.61 and 0.43 for C and N respectively). Litter cover improved soil moisture to 45–50% water filled pore space and soil temperatures not exceeding 25 °C during the warmest month. Microbial biomass stabilized at 20.1 g C m− 2 and 1.9 g N m− 2 in the upper 0.06 m. Soil litter disappearance was a good indicator of mineral N availability. These findings support the view that cover crops, specifically legumes in NT systems can increase soil ecosystem services related to water and carbon storage, habitat for biodiversity, and nutrient availability.EEA AnguilFil: Frasier, Ileana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: Quiroga, Alberto Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: Noellemeyer, Elke. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina2017-08-31T13:24:33Z2017-08-31T13:24:33Z2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/1088http://www.sciencedirect.com/science/article/pii/S0048969716307422?via%3Dihub0048-9697https://doi.org/10.1016/j.scitotenv.2016.04.058Science of the total environment 562 : 628-639. (August 2016)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:09Zoai:localhost:20.500.12123/1088instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:10.082INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Effect of different cover crops on C and N cycling in sorghum NT systems
title Effect of different cover crops on C and N cycling in sorghum NT systems
spellingShingle Effect of different cover crops on C and N cycling in sorghum NT systems
Frasier, Ileana
Plantas de Cobertura
Sorgos
Sorghum
Nitrógeno
Carbón
Cero-Labranza
Cover Plants
Nitrogen
Coil
Zero Tillage
Cultivos de Cobertura
title_short Effect of different cover crops on C and N cycling in sorghum NT systems
title_full Effect of different cover crops on C and N cycling in sorghum NT systems
title_fullStr Effect of different cover crops on C and N cycling in sorghum NT systems
title_full_unstemmed Effect of different cover crops on C and N cycling in sorghum NT systems
title_sort Effect of different cover crops on C and N cycling in sorghum NT systems
dc.creator.none.fl_str_mv Frasier, Ileana
Quiroga, Alberto Raul
Noellemeyer, Elke
author Frasier, Ileana
author_facet Frasier, Ileana
Quiroga, Alberto Raul
Noellemeyer, Elke
author_role author
author2 Quiroga, Alberto Raul
Noellemeyer, Elke
author2_role author
author
dc.subject.none.fl_str_mv Plantas de Cobertura
Sorgos
Sorghum
Nitrógeno
Carbón
Cero-Labranza
Cover Plants
Nitrogen
Coil
Zero Tillage
Cultivos de Cobertura
topic Plantas de Cobertura
Sorgos
Sorghum
Nitrógeno
Carbón
Cero-Labranza
Cover Plants
Nitrogen
Coil
Zero Tillage
Cultivos de Cobertura
dc.description.none.fl_txt_mv In many no-till (NT) systems, residue input is low and fallow periods excessive, for which reasons soil degradation occurs. Cover crops could improve organic matter, biological activity, and soil structure. In order to study changes in soil carbon, nitrogen and microbial biomass a field experiment (2010 − 2012) was set up with sorghum (Sorghum bicolor Moench.) monoculture and with cover crops. Treatments were control (NT with bare fallow), rye (Secale cereale L.) (R), rye with nitrogen fertilization (R + N), vetch (Vicia villosa Roth.) (V), and rye-vetch mixture (VR) cover crops. A completely randomized block design with 4 replicates was used. Soil was sampled once a year at 0.06 and 0.12 m depth for total C, microbial biomass carbon (MBC) and-nitrogen (MBN) determinations. Shoot and root biomass of sorghum and cover crops, litter biomass, and their respective carbon and nitrogen contents were determined. Soil temperatures at 0.06 and 0.12 m depth, volumetric water contents and nitrate concentrations were determined at sowing, and harvest of each crop, and during sorghum's vegetative phase. NT led to a small increase in MBC and MBN, despite low litter and root biomass residue. Cover crops increased litter, root biomass, total C, MBC, and MBN. Relationships between MBC, MBN, and root-C and –N adjusted to logistic models (R2 = 0.61 and 0.43 for C and N respectively). Litter cover improved soil moisture to 45–50% water filled pore space and soil temperatures not exceeding 25 °C during the warmest month. Microbial biomass stabilized at 20.1 g C m− 2 and 1.9 g N m− 2 in the upper 0.06 m. Soil litter disappearance was a good indicator of mineral N availability. These findings support the view that cover crops, specifically legumes in NT systems can increase soil ecosystem services related to water and carbon storage, habitat for biodiversity, and nutrient availability.
EEA Anguil
Fil: Frasier, Ileana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
Fil: Quiroga, Alberto Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
Fil: Noellemeyer, Elke. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
description In many no-till (NT) systems, residue input is low and fallow periods excessive, for which reasons soil degradation occurs. Cover crops could improve organic matter, biological activity, and soil structure. In order to study changes in soil carbon, nitrogen and microbial biomass a field experiment (2010 − 2012) was set up with sorghum (Sorghum bicolor Moench.) monoculture and with cover crops. Treatments were control (NT with bare fallow), rye (Secale cereale L.) (R), rye with nitrogen fertilization (R + N), vetch (Vicia villosa Roth.) (V), and rye-vetch mixture (VR) cover crops. A completely randomized block design with 4 replicates was used. Soil was sampled once a year at 0.06 and 0.12 m depth for total C, microbial biomass carbon (MBC) and-nitrogen (MBN) determinations. Shoot and root biomass of sorghum and cover crops, litter biomass, and their respective carbon and nitrogen contents were determined. Soil temperatures at 0.06 and 0.12 m depth, volumetric water contents and nitrate concentrations were determined at sowing, and harvest of each crop, and during sorghum's vegetative phase. NT led to a small increase in MBC and MBN, despite low litter and root biomass residue. Cover crops increased litter, root biomass, total C, MBC, and MBN. Relationships between MBC, MBN, and root-C and –N adjusted to logistic models (R2 = 0.61 and 0.43 for C and N respectively). Litter cover improved soil moisture to 45–50% water filled pore space and soil temperatures not exceeding 25 °C during the warmest month. Microbial biomass stabilized at 20.1 g C m− 2 and 1.9 g N m− 2 in the upper 0.06 m. Soil litter disappearance was a good indicator of mineral N availability. These findings support the view that cover crops, specifically legumes in NT systems can increase soil ecosystem services related to water and carbon storage, habitat for biodiversity, and nutrient availability.
publishDate 2016
dc.date.none.fl_str_mv 2016
2017-08-31T13:24:33Z
2017-08-31T13:24:33Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/1088
http://www.sciencedirect.com/science/article/pii/S0048969716307422?via%3Dihub
0048-9697
https://doi.org/10.1016/j.scitotenv.2016.04.058
url http://hdl.handle.net/20.500.12123/1088
http://www.sciencedirect.com/science/article/pii/S0048969716307422?via%3Dihub
https://doi.org/10.1016/j.scitotenv.2016.04.058
identifier_str_mv 0048-9697
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.source.none.fl_str_mv Science of the total environment 562 : 628-639. (August 2016)
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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score 12.559606

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