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Diakhaté S., Villenave Cécile, Diallo N. H., Ba A. O., Djigal D., Masse Dominique, Sembène P. M., Chapuis Lardy Lydie. (2013). The influence of a shrub-based intercropping system on the soil nematofauna when growing millet in Senegal. European Journal of Soil Biology, 57, 35-41. ISSN 1164-5563

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Lien direct chez l'éditeur doi:10.1016/j.ejsobi.2013.04.003

Titre
The influence of a shrub-based intercropping system on the soil nematofauna when growing millet in Senegal
Année de publication2013
Type de documentArticle référencé dans le Web of Science WOS:000320824400006
AuteursDiakhaté S., Villenave Cécile, Diallo N. H., Ba A. O., Djigal D., Masse Dominique, Sembène P. M., Chapuis Lardy Lydie.
SourceEuropean Journal of Soil Biology, 2013, 57, p. 35-41. ISSN 1164-5563
RésuméWoody shrubs commonly co-exist with annual food crops in farmers' fields throughout the Sahel. Management strategies that deliberately include the native shrub Piliostigma reticulatum in Senegalese cropping systems result in soil functioning enhancement that benefits to the associated cereal. The objective of this work was to evaluate shrub effect on soil nematode communities. Soil samples were collected from an experimental design where pearl millet (Pennisetum glaucum) was cultivated alone or with P. reticulatum stands and mulch. Soil nematofauna characteristics were determined and compared with results from soil under pure shrub stands and from bare soil. The analysis of soil nematofauna, characterized by the abundance of different trophic groups and related indices (MI, maturity index; El and SI, enrichment and structure indices), allowed discrimination between treatments with or without shrub presence. The soil nematode community in millet cultivation was dominated by plant feeding nematodes, mainly from the Hoplolaimidae family, but their abundance decreased when P. reticulatum was associated to the cereal. The shrub also impacted other nematode trophic groups. The abundance of opportunistic bacterial feeders (mainly Cephalobidae) was increased in shrub treatments. Further research should explore consequences on cereal nutrition and nematicidal properties of P. reticulatum.
Plan de classementBiologie du sol [074] ; Etudes, transformation, conservation du milieu naturel [082] ; Sciences du monde végétal [076]
Descr. géo.SENEGAL
LocalisationFonds IRD [F B010060461]
Identifiant IRDfdi:010060461
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010060461

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