Nutrient flows and balances in intensively managed vegetable production of two West African cities

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dc.creatorAkoto-Danso, Edmund K.
dc.creatorManka’abusi, D.
dc.creatorSteiner, C.
dc.creatorWerner, S.
dc.creatorHaering, V.
dc.creatorLompo, D.J.-P.
dc.creatorNyarko, G.
dc.creatorMarschner, B.
dc.creatorDrechsel, Pay
dc.creatorBuerkert, Andreas
dc.date2019-04
dc.date2019-02-05T04:47:31Z
dc.date2019-02-05T04:47:31Z
dc.date.accessioned2026-06-27T18:28:38Z
dc.descriptionThis study reports and analyzes nutrient balances in experimental vegetable production systems of the two West African cities of Tamale (Ghana) and Ouagadougou (Burkina Faso) over a twoyear period comprising thirteen and eleven crops, respectively. Nutrient-use efficiency was also calculated. In Tamale and Ouagadougou, up to 2% (8 and 80 kg N ha–1) of annually applied fertilizer nitrogen were leached. While biochar application or wastewater irrigation on fertilized plots did not influence N leaching in both cities, P and K leaching, as determined with ion-absorbing resin cartridges, were reduced on biochar-amended plots in Tamale. Annual nutrient balances amounted to +362 kg N ha–1, +217 kg P ha–1, and –125 kg K ha–1 in Tamale, while Ouagadougou had balances of up to +692 kg N ha–1, +166 kg P ha–1, and –175 kg K ha–1 y–1. Under farmers’ practice of fertilization, agronomic nutrient-use efficiencies were generally higher in Tamale than in Ouagadougou, but declined in both cities during the last season. This was the result of the higher nutrient inputs in Ouagadougou compared to Tamale and relatively lower outputs. The high N and P surpluses and K deficits call for adjustments in local fertilization practices to enhance nutrient-use efficiency and prevent risks of eutrophication.
dc.identifierhttps://hdl.handle.net/10568/99290
dc.identifier.urihttp://hdl.handle.net/123456789/157036
dc.languageen
dc.publisherWiley
dc.rightsLimited Access
dc.sourceAkoto-Danso, E. K.; Manka'abusi, D.; Steiner, C.; Werner, S.; Haering, V.; Lompo, D. J.-P.; Nyarko, G.; Marschner, B.; Drechsel, Pay; Buerkert, A. 2019. Nutrient flows and balances in intensively managed vegetable production of two West African cities. Journal of Plant Nutrition and Soil Science, 15p. (Online first) doi: 10.1002/jpln.201800339
dc.subjectwastewater irrigation
dc.subjectvegetable growing
dc.subjectnutrient balance
dc.subjectnutrient use efficiency
dc.subjectbiochar
dc.subjecthorticulture
dc.subjectleaching
dc.subjectvolatilization
dc.subjectnitrogen fertilizers
dc.subjectphosphorus
dc.subjectpotassium
dc.subjectsoil fertility
dc.subjectirrigation water
dc.subjectemission
dc.subjectcrop production
dc.titleNutrient flows and balances in intensively managed vegetable production of two West African cities
dc.typeJournal Article

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Instituto Internacional para el Manejo del Agua (IWMI)