The effect of tillage practices on a leek crop’s nitrogen utilisation from a grass-clover sward

Koen Willekens, Bert Van Gils, Alex De Vliegher, Lieven Delanote, Annelies Beeckman, Bart Vandecasteele

    Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureC1: Artikels in proceedings van wetenschappelijke congressen, die niet inbegrepen zijn in A1, A2, A3 of P1peer review

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    A grass-clover ley may serve to build soil fertility. However, destruction of the sward may result in a high mineral N content in the soil profile in autumn. We have therefore investigated if non-inversion tillage is feasible for destruction of a grass-clover sward. We also examined how mode and timing of destruction would affect the N availability as reflected by total N uptake of the subsequent main crop leek (Allium porrum) and the residual mineral N. Early destruction in March appeared to be the least favorable option due to the highest residual mineral N content at values of total plant biomass and N uptake not higher than those obtained after late destruction of a repetitively mulched grass-clover sward. Non-inversion tillage proved to be successful for destruction of a grass-clover sward. It did not lower total plant biomass and N uptake by leek when compared to mouldboard ploughing. Grass-clover management history and time of destruction were decisive for the N availability.
    Oorspronkelijke taalEngels
    TitelProceedings of the 4th ISOFAR Scientific Conference. ‘Building Organic Bridges’ : 1, Thuenen Report
    EditorsGerold Rahmann, Uygun Aksoy
    Volume20
    Plaats productieBraunschweig, Germany
    UitgeverijJohann Heinrich von Thünen-Institut
    Publicatiedatum2014
    Pagina's57-60
    ISBN van geprinte versie978-3-86576-128-6
    DOI's
    PublicatiestatusGepubliceerd - 2014
    Evenement18th Organic World Congress - Istanbul, Turkije
    Duur: 13-okt-201415-okt-2014

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