{"id":10829,"date":"2018-04-05T17:52:47","date_gmt":"2018-04-05T15:52:47","guid":{"rendered":"http:\/\/www.irbab-kbivb.be\/?p=10829"},"modified":"2018-04-05T17:52:47","modified_gmt":"2018-04-05T15:52:47","slug":"commencez-les-semis-des-betteraves-au-bon-moment","status":"publish","type":"post","link":"https:\/\/www.irbab-kbivb.be\/fr\/commencez-les-semis-des-betteraves-au-bon-moment\/","title":{"rendered":"Commencez les semis des betteraves au bon moment."},"content":{"rendered":"

\"\"<\/a>Il y a actuellement moins de 1% de la surface betteravi\u00e8re belge qui a \u00e9t\u00e9 sem\u00e9e.<\/p>\n

Bien que les pr\u00e9visions m\u00e9t\u00e9orologiques soient encore incertaines, la p\u00e9riode plus s\u00e8che annonc\u00e9e laisse entrevoir la possibilit\u00e9 de commencer les semis.<\/p>\n

Ne vous pr\u00e9cipitez pas, car les erreurs de semis ne peuvent pas \u00eatre r\u00e9cup\u00e9r\u00e9es ! Nous vous donnons ci-apr\u00e8s un bref rappel des r\u00e9glages corrects des machines et des densit\u00e9s de semis<\/p>\n

La couche superficielle (lit de germination) doit s’effriter et le sol en profondeur ne doit pas rester en un bloc compact si vous le lancez devant vous (un sol humide est plus sensible au compactage).<\/p>\n

V\u00e9rifiez les parcelles s\u00e9par\u00e9ment, il y a de grandes diff\u00e9rences entre les parcelles. Choisissez votre moment de semis en fonction des pr\u00e9visions m\u00e9t\u00e9o. Assurez-vous d\u2019un minimum de 36 heures de temps sec, sans pr\u00e9cipitations apr\u00e8s le semis. De cette fa\u00e7on, les mottes en surface se dess\u00e8chent et le risque de gla\u00e7age diminue en cas de fortes pr\u00e9cipitations.<\/p>\n

Choisissez une profondeur de semis correcte en fonction des conditions m\u00e9t\u00e9orologiques. Si la pluie est pr\u00e9vue, ne semez pas trop profond\u00e9ment (max 1,5 cm). Si des conditions m\u00e9t\u00e9orologiques plus rudes et sans pluie sont annonc\u00e9es, semez environ \u00e0 2 – 2,5 cm de profondeur.<\/p>\n

Visez une population finale de 95 000 plantes par hectare (85 000 dans l’argile lourde). La distance de semis d\u00e9pend de l\u2019interligne (45 ou 50 cm) et du pourcentage de lev\u00e9e attendue. Les parcelles en non-labour montrent parfois un pourcentage de lev\u00e9e l\u00e9g\u00e8rement inf\u00e9rieur \u00e0 celui des parcelles labour\u00e9es \u00e0 cause de la pr\u00e9sence de d\u00e9bris organiques dans le lit de germination. Les prairies qui ont r\u00e9cemment \u00e9t\u00e9 converties peuvent aussi entra\u00eener une diminution du nombre de plantes en raison de la pr\u00e9sence d’insectes du sol. Un aper\u00e7u pratique de la population attendue en fonction de la distance de semis est pr\u00e9sent\u00e9 dans ce tableau<\/a>.<\/p>\n

Plus d’informations sur les recommandations concernant les semis et la fertilisation peuvent \u00eatre trouv\u00e9es dans cet article, publi\u00e9 dans le Betteravier en Mars<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Il y a actuellement moins de 1% de la surface betteravi\u00e8re belge qui a \u00e9t\u00e9 sem\u00e9e. Bien que les pr\u00e9visions m\u00e9t\u00e9orologiques soient encore incertaines, la p\u00e9riode plus s\u00e8che annonc\u00e9e laisse entrevoir la possibilit\u00e9 de commencer les semis. Ne vous pr\u00e9cipitez pas, car les erreurs de semis ne peuvent pas \u00eatre r\u00e9cup\u00e9r\u00e9es ! Nous vous donnons […]<\/p>\n","protected":false},"author":5,"featured_media":10817,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":5,"footnotes":""},"categories":[202],"tags":[243],"class_list":["post-10829","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technique-de-semis","tag-messages"],"yoast_head":"\nCommencez les semis des betteraves au bon moment. - IRBAB-KBIVB<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.irbab-kbivb.be\/fr\/commencez-les-semis-des-betteraves-au-bon-moment\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Commencez les semis des betteraves au bon moment. - IRBAB-KBIVB\" \/>\n<meta property=\"og:description\" content=\"Il y a actuellement moins de 1% de la surface betteravi\u00e8re belge qui a \u00e9t\u00e9 sem\u00e9e. Bien que les pr\u00e9visions m\u00e9t\u00e9orologiques soient encore incertaines, la p\u00e9riode plus s\u00e8che annonc\u00e9e laisse entrevoir la possibilit\u00e9 de commencer les semis. Ne vous pr\u00e9cipitez pas, car les erreurs de semis ne peuvent pas \u00eatre r\u00e9cup\u00e9r\u00e9es ! 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