Farm nitrogen flows of four farmer field schools in Kenya von van Beek, Christy L., Onduro, Davies D., Gachimbi, Louis N., de Jager, André

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Farm nitrogen flows of four farmer field schools in Kenya von van Beek, Christy L., Onduru, Davies D., Gachimbi, Louis N., de Jager, André

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Farm nitrogen flows of four farmer field schools in Kenya [Erratum: 2009 Jan., v. 83, no. 1, p. 63-72 von van Beek, Christy L, Onduru, Davies D, Gachimbi, Louis N, de Jager, André

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Nutrients, trace elements and net N mineralization in acidic Kenyan soils von Karyotis, T.(National Agricultural Research Foundation, Larissa (Greece)), Onduru, D.D, Noulas, C, Gachimbi, L.N, Muchena, F.N

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