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    Biomass production, nutrient uptake and partitioning in planted Senna spectabilis, Flemingia macrophylla and Dactyladenia barteria fallow systems over three fallow/cropping cycles on Ultisol

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    Date
    2008
    Author
    Hauser, S.
    Type
    Journal Article
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    Abstract/Description
    Biomass production and nutrient uptake of all components in planted Senna spectabilis, Dactyladenia barteri and Flemingia macrophylla hedgerow fallow were determined after three two-year fallow phases and compared to natural fallow. Total above-ground biomass production after each of three fallow phases was significantly higher in the Senna system than any other system. Total above ground biomass production in the Flemingia and the Dactyladeniai system was not different from that in natural fallow. The volunteer biomass between hedgerows was only once significantly reduced by S. spectabilis during the first fallow phase. The amount of litter did not differ between fallow systems. The biomass of S. spectabilis, F. macrophylla and D. barteri comprised 96%, 95% and 65% wood, respectively. Relative to the total system biomass, wood constituted 67% in S. spectabilis and about 20% in F. macrophylla and D. barteri systems. Except for Mg, the S. spectabilis system accumulated more nutrients in above ground biomass than any other system. The highest nutrient uptake achieved in the S. spectabilis system was 335 kg ha71 N, 331 kg ha71 Ca, 230 kg ha71 K, and 39 kg ha71 P. Relative to the S. spectabilis system, nutrient accumulation, except for Mg, was the lowest in the natural fallow control followed by the F. macrophylla and the D. barteri system. In F. macrophylla and S. spectabilis, 95% and 85% of the nutrients were accumulated in the wood. In D. barteri the nutrient distribution between leaves and wood was approximately equal. Export of wood would remove 9–16% of the nutrients accumulated in the F. macrophylla and D. barteri systems but 27–53% in the S. spectabilis system. Potential consequences of different biomass management options for crop yields and fallow re-growth are discussed.
    https://dx.doi.org/10.1080/03650340802070919
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/2786
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1080/03650340802070919
    IITA Subjects
    Crop Husbandry; Disease Control; Crop Systems; Food Security; Farm Management; Handling, Transport, Storage And Protection Of Agricultural Products; Livelihoods; Nutrition
    Agrovoc Terms
    Planted Fallow; Alley Cropping; Tropics; Biomass; Flemingia Macrophylla; Senna Spectabilis
    Regions
    Africa; Central Africa
    Countries
    Congo, Dr
    Collections
    • Journal and Journal Articles4835
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