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    Dilemma of nitrogen management for future food security in sub-Saharan Africa – a review

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    U17ArtMassoDilemmaInthomDev.pdf (717.8Kb)
    Date
    2017
    Author
    Masso, C.
    Baijukya, Frederick P.
    Ebanyat, Peter
    Bouaziz, S.
    Wendt, J.
    Bekunda, Mateete A.
    Vanlauwe, Bernard
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Food security entails having sufficient, safe, and nutritious food to meet dietary needs. The need to optimise nitrogen (N) use for nutrition security while minimising environmental risks in sub-Saharan Africa (SSA) is overdue. Challenges related to managing N use in SSA can be associated with both insufficient use and excessive loss, and thus the continent must address the ‘too little’ and ‘too much’ paradox. Too little N is used in food production (80% of countries have N deficiencies), which has led to chronic food insecurity and malnutrition. Conversely, too much N load in water bodies due mainly to soil erosion, leaching, limited N recovery from wastewater, and atmospheric deposition contributes to eutrophication (152 Gg N year–1 in Lake Victoria, East Africa). Limited research has been conducted to improve N use for food production and adoption remains low, mainly because farming is generally practiced by resource-poor smallholder farmers. In addition, little has been done to effectively address the ‘too much’ issues, as a consequence of limited research capacity. This research gap must be addressed, and supportive policies operationalised, to maximise N benefits, while also minimising pollution. Innovation platforms involving key stakeholders are required to address N use efficiency along the food supply chain in SSA, as well as other world regions with similar challenges.
    http://dx.doi.org/10.1071/sr16332
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/2258
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1071/sr16332
    IITA Subjects
    Food Security; Soil Fertility
    Agrovoc Terms
    Eutrophication; Land Degradation; Food Security; Food Supply Chain; Innovation Platforms; Policies; Quality Standards; Nitrogen Use Efficiency
    Regions
    Africa; Central Africa; East Africa
    Countries
    Burundi; Kenya; Rwanda; Tanzania; Uganda
    Journals
    Soil Research
    Collections
    • Journal and Journal Articles5283
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