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Use of intercropping in faba bean crops for weed control

AuthorsVillegas-Fernández, Ángel M. ; Amarna, A.; Moral Moral, Juan ; Rubiales, Diego
Issue DateSep-2017
CitationInternational Conference Advances in grain legume breeding, cultivations and uses for a more competitive value-chain (2017)
AbstractWeed competition hampers the growth of crops and may bring about important yield reductions. Chemical control with herbicides is the most used solution although it entails several problems, such as the appearance of weed resistances to herbicide molecules, environmental damages or high economic costs for farmers. Intercropping may be an efficient alternative to herbicides for weed control. The introduction of another crop in the field increases biodiversity and may result in reduced levels of weed infestation. In the frame of LEGATO project we tested weed reduction in faba bean intercropped with different crops during three consecutive field seasons at Córdoba. The crops introduced were wheat, barley and pea, employing an alternate-row system. Three different experiments were carried out: in one of them replacement intercropping (where rows of the second crop replace rows of the main crop) was chosen; in another one, addition cropping (with rows of the second crop being sown in between the rows of the main crop) was employed; and in a third one, both methods, addition and replacement intercropping, were studied. Results have shown that addition intercropping achieves important reductions of weed coverage and biomass compared to faba bean sole-crop, being barley the most effective companion crop for weed reduction, followed by wheat and pea in decreasing order. On the contrary, no weed reduction was observed in replacement intercropping.
DescriptionTrabajo presentado en la International Conference Advances in grain legume breeding, cultivations and uses for a more competitive value-chain, celebrada en Novi Sad (Serbia) el 27 y 28 de septiembre de 2017.
Appears in Collections:(IAS) Comunicaciones congresos
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