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Probl��me En B��arn, le ma��s est bien adapt�� au contexte p��doclimatique, sans perte de potentiel de rendement lorsqu'il est cultiv�� en monoculture. Mais la pression r��glementaire et les risques de volatilit�� des prix, ainsi que la pression croissante des bio-agresseurs menacent ce syst��me historique. Il est indispensable d'exp��rimenter des syst��mes de culture alternatifs alliant respect de l'environnement, gestion efficace des bio-agresseurs, productivit�� et rentabilit��. Solution En alternative �� la monoculture de ma��s, une rotation de 2 ans a ��t�� mise en place. Elle consiste en une s��quence de 3 cultures de rente en 2 ans : ma��s, (culture interm��diaire d���avoine et moutarde), soja et avoine CIVE (culture interm��diaire �� vocation ��nerg��tique). Gr��ce �� l'introduction d���une l��gumineuse et de couverts, qui permettent de diversifier les cultures tout en b��n��ficiant d'aides coupl��es, ce syst��me innovant a montr�� qu'il am��liorait les performances agronomiques, environnementales et ��conomiques.
DiverIMPACTSPA, Cultures multiples, Diversification des rotations
DiverIMPACTSPA, Cultures multiples, Diversification des rotations
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