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One of the ‘grand challenges’ of this age is the anthropogenic impact exerted on the nitrogen cycle. Issues of concern range from an excess of fixed nitrogen resulting in environmental pressures for some regions, while for other regions insufficient fixed nitrogen affects food security and may le...


Reis, S.Bekunda, Mateete A.Howard, C.Karanja, N.Winiwarter, W.Yan, X.Bleeker, A.Sutton, M.A.[Synthesis and review: tackling the nitrogen management challenge: from global to local scales]Synthesis and review: tackling the nitrogen management challenge: from global to local scales
Prain, G.Karanja, N.Lee-Smith, D.[African urban harvest: Agriculture in the cities of Cameroon, Kenya and Uganda.]African urban harvest: Agriculture in the cities of Cameroon, Kenya and Uganda.

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