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Banana leaf pruning to facilitate annual legume intercropping as an intensification strategy in the East African highlands

dc.contributor.authorOcimati, W.
dc.contributor.authorNtamwira, J.
dc.contributor.authorGroot, J.C.J.
dc.contributor.authorTaulya, G.
dc.contributor.authorTittonell, P.
dc.contributor.authorDhed’a, B.
dc.contributor.authorvan Asten, P.
dc.contributor.authorVanlauwe, B.
dc.contributor.authorRuhigwa, B.
dc.contributor.authorBlomme, G.
dc.date.accessioned2019-12-04T11:36:16Z
dc.date.available2019-12-04T11:36:16Z
dc.date.issued2019-10
dc.identifier.citationOcimati, W., Ntamwira, J., Groot, J.C.J., Taulya, G., Tittonell, P., Dhed’a, B., ... & Blomme, G. (2019). Banana leaf pruning to facilitate annual legume intercropping as an intensification strategy in the East African highlands. European Journal of Agronomy, 110, 1-12.
dc.identifier.issn1161-0301
dc.identifier.urihttps://hdl.handle.net/20.500.12478/6178
dc.descriptionPublished online: 23 July 2019
dc.description.abstractBanana leaf pruning is a common practice to facilitate intercropping with legumes on farmers’ fields. It is however not clear if this practice improves farmers land-use and economic efficiency, especially after full canopy formation. To analyze pruning effects, three legumes viz. bush bean (Phaseolus vulgaris L), climbing bean (Phaseolus vulgaris L) and soybean (Glycine max), were planted under three banana leaf pruning levels in which four, seven and all fully grown leaves were retained. Sole banana or legume plots served as controls. Each treatment combination was replicated three times. Banana growth and yield attributes were measured for the plant and first ratoon crops while legume biomass and yields determined over five consecutive cropping seasons. Significant (P < 0.001) reductions in banana growth and yield were associated with leaf pruning. Banana yield reductions of 31% and 10% for the four- and seven-leaf retention treatments, respectively occurred. The vigorous intercrops (climbing beans and soybeans) more often depressed the growth and yield of banana. Legume grain and biomass yields increased with leaf pruning levels. Weed biomass and associated management costs increased with decline in shade intensity. The land-use efficiency measured using the land equivalence ratio (LER) was far lower in the treatment with four-leaves (1.10) compared to when all leaves were retained (1.4) but higher (1.54) for the seven-leaf treatment. Severe banana leaf pruning could thus be detrimental to banana performance and inefficient. Moderate banana leaf pruning could however be promoted were land is limiting and farmers want to maximize diversity/nutrition. However, the highest values for gross revenue and benefit-cost ratio were realized for sole banana-all-leaf retention treatment due to a higher labor productivity and lower input costs attributed to the perennial nature of banana. The higher economic efficiency in sole banana plots suggests that reliance on LER only may be insufficient for guiding intercropping decisions.
dc.description.sponsorshipDirectorate-General for Development Cooperation and Humanitarian Aid, Belgium
dc.format.extent1-12
dc.language.isoen
dc.rightsCopyrighted; all rights reserved
dc.subjectBananas
dc.subjectIntercropping
dc.subjectLegumes
dc.subjectCropping Systems
dc.subjectSoybeans
dc.subjectPruning
dc.titleBanana leaf pruning to facilitate annual legume intercropping as an intensification strategy in the East African highlands
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpMaize
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationWageningen University and Research Centre
cg.contributor.affiliationBioversity International
cg.contributor.affiliationInstitut National pour l'Etude et la Recherche Agronomiques
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationInstituto Nacional de Tecnología Agropecuaria
cg.contributor.affiliationUniversité de Kisangani
cg.contributor.affiliationOlam Internationl Ltd, Uganda
cg.contributor.affiliationUniversité de Bunia
cg.coverage.regionAfrica
cg.coverage.regionCentral Africa
cg.coverage.countryCongo, Dr
cg.creator.identifierWalter Ocimati: 0000-0001-6177-7073
cg.creator.identifierGodfrey Taulya: 0000-0002-5690-0492
cg.creator.identifierPiet van Asten: 0000-0003-0584-3552
cg.creator.identifierbernard vanlauwe: 0000-0001-6016-6027
cg.creator.identifierGuy Blomme: 0000-0002-3857-964X
cg.researchthemeNATURAL RESOURCE MANAGEMENT
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectBanana
cg.iitasubjectCrop Systems
cg.iitasubjectFood Systems
cg.iitasubjectGrain Legumes
cg.iitasubjectSoybean
cg.journalEuropean Journal of Agronomy
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid106554
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1016/j.eja.2019.125923


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