{"id":426,"date":"2014-06-20T05:00:00","date_gmt":"2014-06-20T09:00:00","guid":{"rendered":"https:\/\/maizex.com\/votre-mais-subit-il-de-la-rivalite\/"},"modified":"2014-06-20T16:18:00","modified_gmt":"2014-06-20T16:18:00","slug":"votre-mais-subit-il-de-la-rivalite","status":"publish","type":"post","link":"https:\/\/maizex.com\/fr\/votre-mais-subit-il-de-la-rivalite\/","title":{"rendered":"Votre ma\u00efs subit-il de la rivalit\u00e9?"},"content":{"rendered":"

Dans plusieurs régions de la province, la gestion des mauvaises herbes a représenté un véritable défi. Le mauvais temps nous a empêchés d’appliquer les herbicides et de profiter de leur bon fonctionnement. Le contrôle hâtif des mauvaises herbes est essentiel pour obtenir un rendement maximal, peu importe la température.<\/p>\n\n

Le Dr Clarence Swanton de l’Université de Guelph a démontré que les plants de maïs ont la capacité de « reconnaitre » les mauvaises herbes. Pour réussir à entrer en compétition avec la pression des mauvaises herbes, les plants de maïs redistribuent leurs ressources à travers le plant, en accroissant la biomasse des pousses et en réduisant celle des racines. Ce changement de proportion se maintiendra pour le reste de la saison il se traduit par une perte irréversible de rendement…<\/p>\n\n

Que devez-vous faire? Pour ceux qui n’ont pas encore appliqué des herbicides, faites-le aussitôt que possible. Les producteurs qui ont appliqué des herbicides, mais qui pensent qu’ils n’ont pas été activés, pourraient penser utiliser un herbicide de contact pour contrôler les mauvaises herbes qui ont poussé. Les herbicides qui ont déjà été appliqués s’activeront avec une bonne pluie.<\/p>\n\n

Les mauvaises herbes qui ont poussé diminuent considérablement le rendement tôt au début de la saison de croissance. La perte irréversible de rendement s’accroît avec le temps, en présence d’une compétition des mauvaises herbes. Pour obtenir un potentiel de rendement maximal, les mauvaises herbes doivent être gérées aussitôt que possible durant la saison de croissance.<\/p>\n\n

Shawn Winter, CCA-ON, <\/em>Directeur du développement de produit<\/em>
\nTwitter: @SWinter_Maiz<\/em><\/a> <\/p>\n\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Dans plusieurs régions de la province, la gestion des mauvaises herbes a représenté un véritable défi. 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