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dc.contributor.authorAlou, I.N.
dc.contributor.authorAsten, Piet J.A. van
dc.contributor.authorTenywa, M.M.
dc.date.accessioned2019-12-04T10:58:30Z
dc.date.available2019-12-04T10:58:30Z
dc.date.issued2014
dc.identifier.citationAlou, I.N., Van Asten, P. & Tenywa, M. (2014). Biophysical and crop management gradients limiting yields of East African highland banana (Musa spp. AAA-EA) within farms in low input cropping systems. International Journal of Agricultural Science and Research, 4(3), 27-43.
dc.identifier.issn2250-0057
dc.identifier.urihttps://hdl.handle.net/20.500.12478/1004
dc.description.abstractThe study aimed to quantify the relative contributions of soil fertility factors (S), pests and diseases (P) and crop management practices (M) to highland banana (Musa spp. AAA-EA) yields under heterogeneous on-farm conditions. Soil status, nutrient levels, pests, crop management from 150 mats within close (CH), mid (MH) and remote (RH) distances of 10 homesteads in Butare, Southwest Uganda were monitored from 2006-2008. Actual yields (14.3 Mg ha-1 yr-1) of dominant cultivar (cv. ‘Enyeru’) were limited by S (62.8%), P (22.0%) and M factors (15.2%). Bunch mass was limited by low soil pH (< 6.2), low exch. Ca (< 2.04 cmol+kg-1), Mg (< 2.3 cmol+kg-1), high K:Mg ratio (0.99±1.2), mat density (> 1512 mats ha-1) and excessive defoliation (< 9 functional leaves) from boundary line analysis. DRIS norms of exchangeable bases were low relative to N, P & K. Banana weevil and nematode damages contributed 21.7% and 3.3% of yield limitations, respectively. Most S factors limited yields in ‘fertile’ CH (75%) and P factors in MH and RH which differed with household resource endowment. Spatial variability in biophysical factors within small farms is so large and should be considered when addressing yield limitations to highland banana yields.
dc.format.extent027-044
dc.language.isoen
dc.subjectBananas
dc.subjectCrop Management
dc.titleBiophysical and crop management gradients limiting yields of east African highland banana (Musa spp. AAAEA) within farms in low input cropping systems
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationBulindi Zonal Agricultural Research and Development Institute, Uganda
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationMakerere University
cg.coverage.regionAfrica South Of Sahara
cg.coverage.countryUganda
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectBanana
cg.journalInternational Journal of Agricultural Science and Research
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid77933


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