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Descripción
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| The aim of this work was to study the long-term effects (>12 years) of different tillage practices on aggregate stability (WSA). The experimental design was split plot with 4 randomized blocks where the main plot was tillage and the subplot was the rotation. Three different tillage systems were compared: no tillage (NT), minimum tillage (MT), and conventional tillage (CT). Samples were taken after tillage in two consecutive years from the 0-7.5 cm and 7.5-15 cm depths and SOC, C-POM contents and WSA were measured. Results showed that soil water content (SWC) on sampling date had a great influence on the aggregate stability measurement. SOC, C-POM and WSA values were higher for the surface 0-7.5 cm compared to the deeper layer (7.5-15 cm). Regarding the tillage practices, under NT higher values of SOC, C-POM and WSA were obtained compared to MT and CT. No tillage increased SOC and C-POM contents in the soil surface and this may have promoted aggregate stability. | |
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Internacional
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Si |
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Nombre congreso
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International Symposium on Soil Organic Matter Dynamics: Land use, management and global change |
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Tipo de participación
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960 |
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Lugar del congreso
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Colorado Springs, EEUU |
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Revisores
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Si |
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ISBN o ISSN
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99-9999-999-9 |
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DOI
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Fecha inicio congreso
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06/07/2009 |
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Fecha fin congreso
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09/07/2009 |
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Desde la página
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237 |
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Hasta la página
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237 |
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Título de las actas
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Actas del Congreso |