Overview of Long Term Experiments in Africa

Simple item page
cg.contributor.affiliationAlliance for a Green Revolution in Africaen_US
cg.contributor.affiliationInternational Center for Tropical Agricultureen_US
cg.contributor.affiliationUniversity of Bonnen_US
cg.contributor.affiliationInternational Crops Research Institute for the Semi-Arid Tropicsen_US
cg.contributor.affiliationAfrica Rice Centeren_US
cg.contributor.affiliationAhmadu Bello Universityen_US
cg.contributor.affiliationKenya Agricultural Research Instituteen_US
cg.contributor.affiliationKenyatta Universityen_US
cg.contributor.affiliationZambia Agricultural Research Instituteen_US
cg.contributor.affiliationUniversity of Wyomingen_US
cg.contributor.affiliationDepartment of Soil Sciencesen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionSub-Saharan Africaen_US
cg.creator.identifierJob Kihara: 0000-0002-4394-9553en_US
cg.identifier.doihttps://doi.org/10.1007/978-94-007-2938-4_1en_US
cg.isbn9789400729377en_US
cg.isbn9789400729384en_US
dc.contributor.authorBationo, A.en_US
dc.contributor.authorWaswa, Boaz Shabanen_US
dc.contributor.authorAbdou, A.en_US
dc.contributor.authorBado, B.V.en_US
dc.contributor.authorBonzi, M.en_US
dc.contributor.authorIwuafor, E.en_US
dc.contributor.authorKibunja, C.en_US
dc.contributor.authorKihara, Job Magutaen_US
dc.contributor.authorMucheru, M.en_US
dc.contributor.authorMugendi, D.en_US
dc.contributor.authorMugwe, J.en_US
dc.contributor.authorMwale, C.en_US
dc.contributor.authorOkeyo, J.en_US
dc.contributor.authorOlle, A.en_US
dc.contributor.authorRoing, K.en_US
dc.contributor.authorSedogo, M.en_US
dc.date.accessioned2021-12-06T12:34:09Zen_US
dc.date.available2021-12-06T12:34:09Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/116558en_US
dc.titleOverview of Long Term Experiments in Africaen_US
dcterms.abstractThe prevailing low food production in sub-Saharan Africa is an issue of great concern especially since Africa south of the Sahara is the only remaining region of the world where per capita food production has remained stagnant. This chapter reviews long-term experiments in Africa in the context of shifting paradigms related to tropical soil fertility management from first external input paradigm right through to the current Integrated Soil Fertility Management (ISFM) approach, which is a culmination of the participatory methods developed along the paradigm shift. Long term experiments (LTE) are an important source of evidence for soil fertility decline and provide crucial datasets for the development of sustainable management practices for tropical land-use systems and the amelioration of global climatic and environmental change impacts. A survey was undertaken to identify some ongoing long-term trials distributed across east, south and western Africa and in different agro-ecological zones. A long-term Experiment was defined as that extending over a period of over 5 years and more. Results from these trials are discussed in detail. Inference has been drawn from these findings and includes the following key findings: a) All long term trials showed yield decline, often with a relatively rapid fall to a low level equilibrium; b) At all sites, there were positive yield responses to one or more nutrients added as mineral fertilizers, which were consistent for the duration of the experiments highlighting the effectiveness of mine-ral fertilizers in increasing yield in arable farming systems in Africa; c) Soil organic matter (SOM) also declines significantly when land is cultivated; d) Prolonged treatments using only inputs of organic matter also showed yield declines, although the positive impact were sustained longer than for inorganic fertilizers alone in most cases; e) Rotational treatments, including sequences with legume crops and fallow periods had lower yield declines than monocultures; f) The best results invariably were those treatments that combined inorganic and organic inputs.en_US
dcterms.accessRightsLimited Accessen_US
dcterms.available2012-01-11en_US
dcterms.bibliographicCitationBationo, A. Waswa, B. Abdou, A. Bado, B. V. Bonzi, M. Iwuafor, E. Kibunja, C. Kihara, J. Mucheru, M. Mugendi, D. Mugwe, J. Mwale, C. Okeyo, J. Olle, A. Roing, K. Sedogo, M. Overview of Long Term Experiments in Africa. Bationo A., Waswa B., Kihara J., Adolwa I., Vanlauwe B., Saidou K. (eds),Lessons learned from Long-term Soil Fertility Management Experiments in Africa: Springer, Dordrecht: pp 1-26.en_US
dcterms.extentp. 1-26en_US
dcterms.issued2012en_US
dcterms.languageenen_US
dcterms.licenseOtheren_US
dcterms.publisherSpringeren_US
dcterms.subjectsoil fertilityen_US
dcterms.subjectmineral fertilizersen_US
dcterms.typeBook Chapteren_US

Files

Collections

AfricaRice books and book chapters