Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization

Autores
Martinez, Juan Manuel; Galantini, Juan Alberto; Duval, Matias Ezequiel
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objectives of this study were i) to measure the nitrogen (N) mineralization potential; ii) to evaluate N mineralization indices and labile soil organic matter (SOM) fractions, and iii) to analyze their interrelationship with soil properties for predicting the potential N mineralization in Mollisols under no-tillage of the Argentine Pampas. Potential N mineralization pool was determined by aerobic incubation of soil samples from 0-20 cm depth at 25°C for six drying and rewetting cycles over 21-24 weeks. The data were fitted to a first-order exponential equation to determine the potentially mineralizable N at a variable (N0) and at a fixed constant rate (N0kf). Several N mineralization indices, labile organic fractions and soil properties were determined. A broad range of values were found for N0 (29.9-220.7 mg kg-1) and N0kf (26.9-172.4 mg kg-1). A close relationship (P<0.001) was found between N0 and N0kf with a high coefficient of determination (R2=0.94). High R2 values were found for predicting N0 and N0kf using the principal component as regress variable. Total and labile organic fractions and sand content, explained the majority of the variance. No single N mineralization index, labile organic fraction or soil property can accurately predict the potential N mineralization at a variable and at a fixed constant rate. The potential N mineralization pool may be controlled mainly by the variables related to the size of SOM and some labile fractions, i.e. soil organic C (SOC) and N (SON), soluble carbohydrates (CHs) and fine particulate organic N (fPOM-N) in these Mollisols.
Fil: Martinez, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Fil: Galantini, Juan Alberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Duval, Matias Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Materia
MOLLISOLS
POTENTIALLY MINERALIZABLE N
PRINCIPAL COMPONENT ANALYSIS
SOIL ORGANIC MATTER
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/87533
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/87533
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralizationMartinez, Juan ManuelGalantini, Juan AlbertoDuval, Matias EzequielMOLLISOLSPOTENTIALLY MINERALIZABLE NPRINCIPAL COMPONENT ANALYSISSOIL ORGANIC MATTERhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4The objectives of this study were i) to measure the nitrogen (N) mineralization potential; ii) to evaluate N mineralization indices and labile soil organic matter (SOM) fractions, and iii) to analyze their interrelationship with soil properties for predicting the potential N mineralization in Mollisols under no-tillage of the Argentine Pampas. Potential N mineralization pool was determined by aerobic incubation of soil samples from 0-20 cm depth at 25°C for six drying and rewetting cycles over 21-24 weeks. The data were fitted to a first-order exponential equation to determine the potentially mineralizable N at a variable (N0) and at a fixed constant rate (N0kf). Several N mineralization indices, labile organic fractions and soil properties were determined. A broad range of values were found for N0 (29.9-220.7 mg kg-1) and N0kf (26.9-172.4 mg kg-1). A close relationship (P<0.001) was found between N0 and N0kf with a high coefficient of determination (R2=0.94). High R2 values were found for predicting N0 and N0kf using the principal component as regress variable. Total and labile organic fractions and sand content, explained the majority of the variance. No single N mineralization index, labile organic fraction or soil property can accurately predict the potential N mineralization at a variable and at a fixed constant rate. The potential N mineralization pool may be controlled mainly by the variables related to the size of SOM and some labile fractions, i.e. soil organic C (SOC) and N (SON), soluble carbohydrates (CHs) and fine particulate organic N (fPOM-N) in these Mollisols.Fil: Martinez, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; ArgentinaFil: Galantini, Juan Alberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Duval, Matias Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; ArgentinaSociedad Chilena de la Ciencia del Suelo2018-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87533Martinez, Juan Manuel; Galantini, Juan Alberto; Duval, Matias Ezequiel; Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization; Sociedad Chilena de la Ciencia del Suelo; Journal of Soil Science and Plant Nutrition; 18; 1; 3-2018; 73-890718-9516CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4067/S0718-95162018005000401info:eu-repo/semantics/altIdentifier/url/https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-95162018005000401&lng=en&nrm=iso&tlng=eninfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:33Zoai:ri.conicet.gov.ar:11336/87533instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:09:33.502CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization
title Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization
spellingShingle Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization
Martinez, Juan Manuel
MOLLISOLS
POTENTIALLY MINERALIZABLE N
PRINCIPAL COMPONENT ANALYSIS
SOIL ORGANIC MATTER
title_short Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization
title_full Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization
title_fullStr Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization
title_full_unstemmed Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization
title_sort Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization
dc.creator.none.fl_str_mv Martinez, Juan Manuel
Galantini, Juan Alberto
Duval, Matias Ezequiel
author Martinez, Juan Manuel
author_facet Martinez, Juan Manuel
Galantini, Juan Alberto
Duval, Matias Ezequiel
author_role author
author2 Galantini, Juan Alberto
Duval, Matias Ezequiel
author2_role author
author
dc.subject.none.fl_str_mv MOLLISOLS
POTENTIALLY MINERALIZABLE N
PRINCIPAL COMPONENT ANALYSIS
SOIL ORGANIC MATTER
topic MOLLISOLS
POTENTIALLY MINERALIZABLE N
PRINCIPAL COMPONENT ANALYSIS
SOIL ORGANIC MATTER
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv The objectives of this study were i) to measure the nitrogen (N) mineralization potential; ii) to evaluate N mineralization indices and labile soil organic matter (SOM) fractions, and iii) to analyze their interrelationship with soil properties for predicting the potential N mineralization in Mollisols under no-tillage of the Argentine Pampas. Potential N mineralization pool was determined by aerobic incubation of soil samples from 0-20 cm depth at 25°C for six drying and rewetting cycles over 21-24 weeks. The data were fitted to a first-order exponential equation to determine the potentially mineralizable N at a variable (N0) and at a fixed constant rate (N0kf). Several N mineralization indices, labile organic fractions and soil properties were determined. A broad range of values were found for N0 (29.9-220.7 mg kg-1) and N0kf (26.9-172.4 mg kg-1). A close relationship (P<0.001) was found between N0 and N0kf with a high coefficient of determination (R2=0.94). High R2 values were found for predicting N0 and N0kf using the principal component as regress variable. Total and labile organic fractions and sand content, explained the majority of the variance. No single N mineralization index, labile organic fraction or soil property can accurately predict the potential N mineralization at a variable and at a fixed constant rate. The potential N mineralization pool may be controlled mainly by the variables related to the size of SOM and some labile fractions, i.e. soil organic C (SOC) and N (SON), soluble carbohydrates (CHs) and fine particulate organic N (fPOM-N) in these Mollisols.
Fil: Martinez, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Fil: Galantini, Juan Alberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Duval, Matias Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
description The objectives of this study were i) to measure the nitrogen (N) mineralization potential; ii) to evaluate N mineralization indices and labile soil organic matter (SOM) fractions, and iii) to analyze their interrelationship with soil properties for predicting the potential N mineralization in Mollisols under no-tillage of the Argentine Pampas. Potential N mineralization pool was determined by aerobic incubation of soil samples from 0-20 cm depth at 25°C for six drying and rewetting cycles over 21-24 weeks. The data were fitted to a first-order exponential equation to determine the potentially mineralizable N at a variable (N0) and at a fixed constant rate (N0kf). Several N mineralization indices, labile organic fractions and soil properties were determined. A broad range of values were found for N0 (29.9-220.7 mg kg-1) and N0kf (26.9-172.4 mg kg-1). A close relationship (P<0.001) was found between N0 and N0kf with a high coefficient of determination (R2=0.94). High R2 values were found for predicting N0 and N0kf using the principal component as regress variable. Total and labile organic fractions and sand content, explained the majority of the variance. No single N mineralization index, labile organic fraction or soil property can accurately predict the potential N mineralization at a variable and at a fixed constant rate. The potential N mineralization pool may be controlled mainly by the variables related to the size of SOM and some labile fractions, i.e. soil organic C (SOC) and N (SON), soluble carbohydrates (CHs) and fine particulate organic N (fPOM-N) in these Mollisols.
publishDate 2018
dc.date.none.fl_str_mv 2018-03
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/11336/87533
Martinez, Juan Manuel; Galantini, Juan Alberto; Duval, Matias Ezequiel; Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization; Sociedad Chilena de la Ciencia del Suelo; Journal of Soil Science and Plant Nutrition; 18; 1; 3-2018; 73-89
0718-9516
CONICET Digital
CONICET
url http://hdl.handle.net/11336/87533
identifier_str_mv Martinez, Juan Manuel; Galantini, Juan Alberto; Duval, Matias Ezequiel; Contribution of nitrogen mineralization indices, labile organic matter and soil properties in predicting nitrogen mineralization; Sociedad Chilena de la Ciencia del Suelo; Journal of Soil Science and Plant Nutrition; 18; 1; 3-2018; 73-89
0718-9516
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4067/S0718-95162018005000401
info:eu-repo/semantics/altIdentifier/url/https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-95162018005000401&lng=en&nrm=iso&tlng=en
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sociedad Chilena de la Ciencia del Suelo
publisher.none.fl_str_mv Sociedad Chilena de la Ciencia del Suelo
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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