Improving local technologies to manage speargrass ( Imperata cylindrica ) in southern Benin

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AuteurVISSOH, VINASSEHO PIERRE
AuteurKUYPER, THOMAS W
AuteurGBEHOUNOU, GUALBERT
AuteurHOUNKONNOU, DOMINIQUE
AuteurAHANCHEDE, ADAM
AuteurROLING, NIELS
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2008
ResumeSpeargrass (Imperata cylindrica) is difficult to control in the tropics. Farmers allocate most of their time and labour to weedingspeargrass. We investigated in a joint experiment concluded with farmers, how effectively grain legumes suppress speargrass,and the relationships between speargrass suppression, legume grain yield, and subsequent maize yield. Without management,speargrass shoots and rhizomes increased with 31 and 17% per month, respectively. The integration of deep ridging, deephoe weeding and shading suppressed speargrass more effectively than farmers’ practices. Creeping varieties of cowpea thatproduced most biomass were most successful in suppressing speargrass and in enhancing subsequent maize yields, but erectcowpea cultivars produced more grain. Farmers traded off cowpea yield against speargrass suppression to bridge the hungrygap. They preferred the erect cowpea cultivar wan. The need to forego a harvest and the fact that pigeonpea is not consumedin the area makes pigeonpea presently unsuitable for integration into the cropping system.
DOI10.1080/09670870701414266
Autre identifiantBECDB-14659
URIhttps://dspace.uac.bj/handle/123456789/12479
Languefr
Fait partie deInternational Journal of Pest Management
SujetSpeargrass
Sujetgrain legumes
Sujetpermanent cropping
Sujetlabour
Sujetparticipatory approaches
Sujetintegrated crop management
Sujetco-research
TitreImproving local technologies to manage speargrass ( Imperata cylindrica ) in southern Benin
TypeArticle

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