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Objectif Végétal : une dynamique partenariale

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    Research results

    The architecture of the crop cover influences the partition of the solar radiation between the two species.

    For pea, varietal traits like the height and the number of ramifications influence the  proportions of each species in the mixture at harvest.

    Complementarity of root architectures during the installation of the associations play a crucial role in the nitrogen status of the associated oilseed rape.

    The effect of nitrogen transfer from the legume to the associated crop is negligible.

    Differences in early growth between species, related to :

    • The seed weight,
    • The sprout duration,
    • The nutrient availability,

    have consequences on the performances of the association.

     

    Cereal-legume intercrops are more competitive towards weeds than  pure legume crops due to a better competition  for soil nitrogen.

    Complementarity for nitrogen sources (air and soil) between the species plays a crucial role in the performances of intercrops.

    Growth of each specie depends on the dynamics of soil nitrate availability.

     


    Joelle Fustec
    j.fustec @ groupe-esa.com

     

                                                         

     

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    • Emeline Defossez,


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