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  1. 1
    Managing Sonchus arvensis using mechanical and cultural methods

    Managing Sonchus arvensis using mechanical and cultural methods by P. VANHALA, T. LÖTJÖNEN, T. HURME

    Published 2008-12-01
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    Article
  2. 2
    Effect of conservation tillage and peat application on weed infestation on a clay soil

    Effect of conservation tillage and peat application on weed infestation on a clay soil by P. VANHALA, L. PIETOLA

    Published 2008-12-01
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    Article

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