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Biomasa y actividad microbiana en un suelo de la región central con distintos sistemas de laboreo

Authors: López-Fando, Cristina; Martín Jiménez, Ángela; Díaz-Raviña, Montserrat;

Biomasa y actividad microbiana en un suelo de la región central con distintos sistemas de laboreo

Abstract

Se estudiaron los cambios en la biomasa y actividad microbianas (hidrólisis del FDA, actividades (3-glucosidasa y ureasa) de un suelo de la zona semiárida sometido a distintos sistemas de laboreo en una rotación cereal-leguminosa y se compararon con los valores obtenidos para un suelo de referencia con barbecho (B). Se analizaron muestras de suelo a 4 profundidades diferentes (0-5, 5-10, 10-20 y 20-30 cm) en los siguientes tratamientos: laboreo convencional (LC) con vertedera, no-laboreo (NL), no-laboreo con descompactador (NLD), mínimo laboreo con chisel, distinguiendo si la parcela provenía de NL (ML1) o de LC (ML2). Los resultados mostraron que, en general, el suelo bajo barbecho presentó valores de biomasa y actividad microbianas más elevados que los presentados por el suelo con los distintos sistemas de laboreo. También se observó una clara estratificación de todas las propiedades bioquímicas analizadas (biomasa microbiana, hidrólisis del FDA, actividades (3-glucosidasa y ureasa) con la profundidad, efecto que era más acusado en el suelo de barbecho y en el suelo sometido a los sistemas de laboreo más conservacionistas (NL, NLD).

El estudio fue financiado por el Ministerio de Ciencia y Tecnología (Proyectos AGL2004-07976- CO2-02/FOR y AGL2007-65698-CO3-02/AGR) y por la Junta de Comunidades de Castilla -La Mancha (Proyecto POII10-0115-2863).

Trabajo presentado en el V Simposio Nacional sobre Control de la Degradación y uso Sostenible del Suelo, celebrado en Murcia (España), del 27 al 30 de junio de 2011

Country
Spain
Related Organizations
Keywords

Biomasa microbiana, Laboreo de conservación, Actividades enzimáticas, Zona semiárida

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green