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Contributions of integrated soil fertility management (ISFM) to various sustainable intensification impact domains in Tanzania

dc.contributor.authorKihara, J.
dc.contributor.authorManda, J.
dc.contributor.authorKimaro, A. A.
dc.contributor.authorSwai, E.
dc.contributor.authorMutungi, C.
dc.contributor.authorKinyua, M.
dc.contributor.authorOkori, P.
dc.contributor.authorFischer, G.
dc.contributor.authorKizito, F.
dc.contributor.authorBekunda, M.
dc.date.accessioned2022-10-31T09:12:56Z
dc.date.available2022-10-31T09:12:56Z
dc.date.issued2022-12
dc.identifier.citationKihara, J., Manda, J., Kimaro, A.A., Swai, E., Mutungi, C., Kinyua, M., ... & Bekunda, M. (2022). Contributions of integrated soil fertility management (ISFM) to various sustainable intensification impact domains in Tanzania. Agricultural Systems, 203: 103496, 1-16.
dc.identifier.issn0308-521X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7920
dc.description.abstractCONTEXT The implementation of integrated soil fertility management (ISFM) varies widely among farmers, from no ISFM to multiple computations of ISFM components (i.e., improved germplasm, organic resources, fertilizers, and local adaptations e.g., soil and water conservation (SWC)). There is no comprehensive report on farmers' use of ISFM components and their impact on sustainable intensification domains of productivity, economic, social, human condition, and environment and the associated variations across farmer fields and agro-ecological zones (AEZs). OBJECTIVE This study 1) evaluated the current implementation status of ISFM by farmers in relation to the various ISFM components and 2) provided multi-dimensional multi-scale evidence of ISFM implications that can guide ISFM investments within SSA contexts, with a specific focus on Tanzania. METHODS We used data collected from 1406 plots between 2013 and 2020 in semi-arid and sub-humid AEZs. The data are from farmer practices. The plots were grouped by the various combinations of ISFM components implemented and analysed using Tukey's test to examine the association of ISFM use with selected indicators within a domain. RESULTS AND CONCLUSIONS The number of ISFM components used by farmers is higher in sub-humid (1 to 4) than in semi-arid AEZ (0 to 3). Except for SWC used by 40% of farmers in both AEZs, the proportion of farmers using improved seeds (95%) and manure (55%) in the sub-humid AEZ are more than double those using these ISFM components in the semi-arid AEZ. Productivity and economic benefits increase with the number of ISFM components at the expense of higher labour demand. Increasing plot-level ISFM benefits also translate to increased household-level whole-farm income but contributions to human nutrition are unclear. The contribution to SOC by increasing ISFM is insignificant, compounded by strong effects of slope position of the field. Differential access to resources, decision-making and control rights drive the number and choice of the specific ISFM components. SIGNIFICANCE Understanding of ISFM impacts across domains is essential to guide the scaling of ISFM in Tanzania and beyond and therefore recommended in future studies.
dc.format.extent1-16
dc.language.isoen
dc.subjectSoil Fertility
dc.subjectSustainable Intensification
dc.subjectCrop Production
dc.subjectTanzania
dc.titleContributions of integrated soil fertility management (ISFM) to various sustainable intensification impact domains in Tanzania
dc.typeJournal Article
cg.contributor.crpGrain Legumes
cg.contributor.crpMaize
cg.contributor.crpPolicies, Institutions and Markets
cg.contributor.affiliationInternational Center of Tropical Agriculture
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationWorld Agroforestry Center
cg.contributor.affiliationTanzania Agricultural Research Institute
cg.contributor.affiliationInternational Crops Research Institute for the Semi-Arid Tropics
cg.contributor.affiliationAlliance of Bioversity International and CIAT
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryTanzania
cg.coverage.hubEastern Africa Hub
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeNatural Resource Management
cg.researchthemePlant Production and Health
cg.researchthemeSocial Science and Agribusiness
cg.identifier.bibtexciteidKIHARA:2022
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectFood Security
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.iitasubjectSoil Fertility
cg.journalAgricultural Systems
cg.notesPublished online: 18 Sep 2022
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1016/j.agsy.2022.103496
cg.iitaauthor.identifierJulius Manda: 0000-0002-9599-5906
cg.iitaauthor.identifierGundula Fischer: 0000-0002-7658-786X
cg.iitaauthor.identifierMateete Bekunda: 0000-0001-7297-9383
cg.futureupdate.requiredNo
cg.identifier.volume203


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