Mycorrhizal Propagule Persistence in a Succession of Cereals in a Disturbed and Undisturbed Andisol Fertilized with Two Nitrogen Sources

Arbuscular mycorrhizal fungi (AMF) form symbiosis with plant roots, improving its establishment, nutrition, and tolerance to adverse soil conditions. In annual crop rotations, some aspects such as the type of N fertilizer and tillage system used can affect the AMF propagule density and its functiona...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Cornejo,Pablo , Rubio,Rosa , Borie,Fernando
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2009
Materias:	arbuscular mycorrhiza mycorrhizal propagules soil disturbing soil pH wheat-oat succession
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300016
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-58392009000300016
record_format	dspace
spelling	oai:scielo:S0718-583920090003000162018-10-01Mycorrhizal Propagule Persistence in a Succession of Cereals in a Disturbed and Undisturbed Andisol Fertilized with Two Nitrogen SourcesCornejo,Pablo Rubio,Rosa Borie,Fernando arbuscular mycorrhiza mycorrhizal propagules soil disturbing soil pH wheat-oat succession Arbuscular mycorrhizal fungi (AMF) form symbiosis with plant roots, improving its establishment, nutrition, and tolerance to adverse soil conditions. In annual crop rotations, some aspects such as the type of N fertilizer and tillage system used can affect the AMF propagule density and its functionality in the following crop. To analyze the effect of the agronomic practices previously mentioned on the persistence and density of AMF propagules, a study in a succession of cereals was carried out. For this, soil previously cropped with wheat (Triticum aestivum L.) and fertilized with urea (NH4+) or sodium nitrate (NO3-) was disturbed in each case by simulating conventional tillage (CT) or maintained without disturbing, simulating no-tillage (NT). It was then cultivated with oat (Avena sativa L.) using the same N sources. Higher densities of AMF active mycelium and colonized root length in the NT soil were observed (76 and 497% higher than in CT soil, respectively, P < 0.001). Moreover, NT + NO3- interaction produced a higher density of AMF spores (75% higher than in the rest of the treatments, P < 0.05), although showing a decrease in comparison with the previous wheat crop. These results suggest that N source and tillage system interact to influence persistence and density of AMF propagules, an important aspect to consider in acidic soils intended for annual crops.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.69 n.3 20092009-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300016en10.4067/S0718-58392009000300016
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	arbuscular mycorrhiza mycorrhizal propagules soil disturbing soil pH wheat-oat succession
spellingShingle	arbuscular mycorrhiza mycorrhizal propagules soil disturbing soil pH wheat-oat succession Cornejo,Pablo Rubio,Rosa Borie,Fernando Mycorrhizal Propagule Persistence in a Succession of Cereals in a Disturbed and Undisturbed Andisol Fertilized with Two Nitrogen Sources
description	Arbuscular mycorrhizal fungi (AMF) form symbiosis with plant roots, improving its establishment, nutrition, and tolerance to adverse soil conditions. In annual crop rotations, some aspects such as the type of N fertilizer and tillage system used can affect the AMF propagule density and its functionality in the following crop. To analyze the effect of the agronomic practices previously mentioned on the persistence and density of AMF propagules, a study in a succession of cereals was carried out. For this, soil previously cropped with wheat (Triticum aestivum L.) and fertilized with urea (NH4+) or sodium nitrate (NO3-) was disturbed in each case by simulating conventional tillage (CT) or maintained without disturbing, simulating no-tillage (NT). It was then cultivated with oat (Avena sativa L.) using the same N sources. Higher densities of AMF active mycelium and colonized root length in the NT soil were observed (76 and 497% higher than in CT soil, respectively, P < 0.001). Moreover, NT + NO3- interaction produced a higher density of AMF spores (75% higher than in the rest of the treatments, P < 0.05), although showing a decrease in comparison with the previous wheat crop. These results suggest that N source and tillage system interact to influence persistence and density of AMF propagules, an important aspect to consider in acidic soils intended for annual crops.
author	Cornejo,Pablo Rubio,Rosa Borie,Fernando
author_facet	Cornejo,Pablo Rubio,Rosa Borie,Fernando
author_sort	Cornejo,Pablo
title	Mycorrhizal Propagule Persistence in a Succession of Cereals in a Disturbed and Undisturbed Andisol Fertilized with Two Nitrogen Sources
title_short	Mycorrhizal Propagule Persistence in a Succession of Cereals in a Disturbed and Undisturbed Andisol Fertilized with Two Nitrogen Sources
title_full	Mycorrhizal Propagule Persistence in a Succession of Cereals in a Disturbed and Undisturbed Andisol Fertilized with Two Nitrogen Sources
title_fullStr	Mycorrhizal Propagule Persistence in a Succession of Cereals in a Disturbed and Undisturbed Andisol Fertilized with Two Nitrogen Sources
title_full_unstemmed	Mycorrhizal Propagule Persistence in a Succession of Cereals in a Disturbed and Undisturbed Andisol Fertilized with Two Nitrogen Sources
title_sort	mycorrhizal propagule persistence in a succession of cereals in a disturbed and undisturbed andisol fertilized with two nitrogen sources
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300016
work_keys_str_mv	AT cornejopablo mycorrhizalpropagulepersistenceinasuccessionofcerealsinadisturbedandundisturbedandisolfertilizedwithtwonitrogensources AT rubiorosa mycorrhizalpropagulepersistenceinasuccessionofcerealsinadisturbedandundisturbedandisolfertilizedwithtwonitrogensources AT boriefernando mycorrhizalpropagulepersistenceinasuccessionofcerealsinadisturbedandundisturbedandisolfertilizedwithtwonitrogensources
_version_	1714205273205243904

Mycorrhizal Propagule Persistence in a Succession of Cereals in a Disturbed and Undisturbed Andisol Fertilized with Two Nitrogen Sources

Ejemplares similares