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Compactación producida por las labores de preparación del lecho de siembra: su efecto sobre la emergencia de malas hierbas en un cultivo de cebada

 

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Opened Access Compactación producida por las labores de preparación del lecho de siembra: su efecto sobre la emergencia de malas hierbas en un cultivo de cebada
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Título alternativo: Compaction caused by soil tillage and seedbed preparation: effects on weed emergence in a barley crop
Author: Núñez, S.
San Martín, C.
Campos, D.
Martín, J. M.
Fernández Quintanilla, C.
Dorado, J.
Date: 2015
Published in: XV Congreso de la Sociedad Española de Malherbología: La Malherbología y la transferencia tecnológica: Sevilla, 19 - 22 octubre 2015, 397-403
ISBN/ISSN: 978-84-608-2775-7
Document type: Presentation
Abstract: El objetivo principal de este trabajo fue evaluar los efectos de la compactación producida por la frecuencia de pases y el tipo de apero utilizado en la siembra del cereal, sobre la emergencia de las malas hierbas. Se utilizó un diseño en parcelas s...
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The main objective of this work was to evaluate the effects of the compaction produced by the frequency of passes and the type of implement used in seedbed preparation, on weed emergence. A split-plot design with 4 replications was used, with the primary tillage (cultivator vs. rotary tiller) in main plots and rolling (flat roller vs. Cambridge roller) in subplots. Weeds data (density, biomass) and soil physical properties (compaction, bulk density) were assessed. The results showed no differences due to the primary tillage in any of the analyzed variables. However, the type and frequency of roller passes resulted in significant differences in weed abundance, with lower weed density and biomass when the number of roller passes was greater (especially flat roller), which coincided with the higher compaction. However, it seems to be a limit at which significant effects no longer occur due to an overcompaction (e.g. double roller pass and tractor wheel traffic).
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URI: http://hdl.handle.net/11441/32642

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