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    Dynamics of nodulation, nitrogen fixation, nitrogen use and biomass yield over time in potgrown Leucaena leucocephala (Lam.) de Wit

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    Date
    1996
    Author
    Kadiata, B.D.
    Mulomgoy, K.
    Isirima, N.O.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    The dynamics of nodulation, N2-fixation and N use in Leucaena leucocephala cv. K28 over time was investigated in a screenhouse at 4, 8, 12 and 16 months after planting (MAP) using the 15N-labelling method. Leucaena had a consistently increasing pattern of nodulation, dry biomass and nitrogen yield. A sharp rise in nodulation was observed between 12 and 16 MAP, whereas for biomass, N accumulation and N2-fixation, and N2-fixation, an upward surge occurred between 4 and 12 months. Nodulation, N accumulation, N2-fixation and biomass yield all peaked at 16 MAP. Along with the steady increase in N2-fixation throughout the 16-month growth period, the % N derived from the atmosphere rose from 17.9% to 61.5%, 70.1% and 74%, equivalent to 191, 1623, 2395 and 3385 mg N2 fixed plant-1 at 4, 8, 12 and 16 MAP, respectively. Nitrogen assimilation from soil and fertilizer decreased inversely to the increase in symbiotic nitrogen fixation with time.
    https://doi.org/10.1007/BF00336553
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5715
    Digital Object Identifier (DOI)
    https://doi.org/10.1007/BF00336553
    IITA Subjects
    Plant Health
    Agrovoc Terms
    Nitrogen Fixation; Nitrogen
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    • Journal and Journal Articles4842
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