{"id":2662,"date":"2015-01-19T14:17:39","date_gmt":"2015-01-19T14:17:39","guid":{"rendered":"http:\/\/kbivb.mailbox-belgium.com\/fr\/?p=2662"},"modified":"2016-05-02T11:04:22","modified_gmt":"2016-05-02T09:04:22","slug":"bilan-de-lannee-2014","status":"publish","type":"post","link":"https:\/\/www.irbab-kbivb.be\/fr\/bilan-de-lannee-2014\/","title":{"rendered":"Bilan de l&#8217;ann\u00e9e 2014 <em>(Betteravier f\u00e9vrier 2015)<\/em><\/p>"},"content":{"rendered":"<p><em>extrait de l&#8217;article publi\u00e9 dans &lsquo;le Betteravier&rsquo; de f\u00e9vrier\u00a02015<\/em><\/p>\n<p><!--more--><\/p>\n<p>Nouveau record de production (14,7 t sucre\/ha*)) et nouvelles difficult\u00e9s phytotechniques \u00e0 craindre pour l&rsquo;avenir<\/p>\n<p>R\u00e9sum\u00e9: Les faits marquants de l&rsquo;ann\u00e9e betteravi\u00e8re 2014(en gras: les nouvelles difficult\u00e9s phytotechniques \u00e0 craindre pour l&rsquo;avenir)<br \/>\n&#8211; Absence quasi-totale de gel durant l&rsquo;hiver 2013\/2014 et non destruction naturelle des engrais verts traditionnellement g\u00e9lifs. Cette situation a entra\u00een\u00e9 une gestion souvent difficile de la destruction des engrais verts avant l&rsquo;implantation des parcelles en betterave.<br \/>\n&#8211; Temp\u00e9ratures moyennes plus \u00e9lev\u00e9es au cours des quatre premiers et des quatre derniers mois de l&rsquo;ann\u00e9e. L&rsquo;ann\u00e9e 2014 aura \u00e9t\u00e9 la plus chaude depuis 1833 \u00e0 Uccle avec une temp\u00e9rature moyenne de 11,9\u00b0C (norme: 10,5\u00b0C). Elle aura \u00e9t\u00e9 \u00e9galement marqu\u00e9e par de nombreux et importants orages d\u00e9vastateurs.<br \/>\n&#8211; Date de semis-50 (moiti\u00e9 de la superficie sem\u00e9e) relativement pr\u00e9coce (31 mars).<br \/>\n&#8211; Bon d\u00e9marrage de la v\u00e9g\u00e9tation, sauf pour quelques semis plus tardifs avec une double lev\u00e9e.<br \/>\n&#8211; Infestations \u00e9tonnement importantes du mildiou de la betterave (Peronospora farinosa) d\u00e8s le mois de juin.<br \/>\n&#8211; Pr\u00e9sence de l&rsquo;o\u00efdium et de la rouille d\u00e8s le d\u00e9but juillet. La cercosporiose a \u00e9t\u00e9 plus fortement pr\u00e9sente \u00e0 partir de la mi-ao\u00fbt. Certaines vari\u00e9t\u00e9s ont remarquablement exprim\u00e9 leur tol\u00e9rance \u00e0 la cercosporiose.<br \/>\n&#8211; Conditions de r\u00e9colte g\u00e9n\u00e9ralement bonnes, avec un rendement racines \u00e9lev\u00e9 d\u00e8s le d\u00e9but de la campagne.<br \/>\n&#8211; La pr\u00e9sence d&rsquo;une souche agressive de la rhizomanie (variante \u00ab\u00a0AYPR\u00a0\u00bb) qui contourne la r\u00e9sistance actuelle a \u00e9t\u00e9 d\u00e9tect\u00e9e pour la premi\u00e8re fois en Belgique, heureusement de fa\u00e7on tr\u00e8s isol\u00e9e.<br \/>\n&#8211; Fr\u00e9quentes attaques de rhizoctone violet, observ\u00e9es en fin de saison au moment de l&rsquo;arrachage et dans les livraisons de betteraves.<br \/>\n&#8211; Fr\u00e9quentes attaques de campagnols qui ont grignot\u00e9, parfois profond\u00e9ment, de nombreuses racines en fin de saison.<br \/>\n&#8211; Nombreux tas de betteraves confectionn\u00e9s trop t\u00f4t par rapport \u00e0 leur date de livraison tardive, entrainant le d\u00e9veloppement de pourritures de conservation.<br \/>\n&#8211; Rendement racines national record \u00e9tablit \u00e0 85,68 t\/ha*), soit plus \u00e9lev\u00e9 de \u00b1 4,5 t\/ha*) que le pr\u00e9c\u00e9dent record de 2011 (81,17 t\/ha).<br \/>\n&#8211; Teneur en sucre de 17,19*) (moyenne nationale), \u00e9voluant peu pendant toute la campagne.<br \/>\n&#8211; Rendement sucre national record \u00e9tablit \u00e0 14,75 t\/ha*), soit en premi\u00e8re position devant ceux de 2011 (14,43 t\/ha) et 2009 (14,39 t\/ha),<br \/>\n&#8211; Gr\u00e2ce aux essais vari\u00e9taux officiels des Minist\u00e8res, mis en place par l&rsquo;IRBAB, 15 nouvelles vari\u00e9t\u00e9s tol\u00e9rantes au n\u00e9matode \u00e0 kyste de la betterave ont \u00e9t\u00e9 inscrites aux catalogues r\u00e9gionaux en d\u00e9cembre 2014 (12 en 2013 et 2012; 10 en 2011).<\/p>\n<p>&nbsp;<\/p>\n<p>Auteurs:\u00a0Guy Legrand, Andr\u00e9 Wauters &amp; Barbara Manderyck<\/p>\n<hr \/>\n<p><em>L&#8217;article complet avec chiffres peut \u00eatre t\u00e9l\u00e9charg\u00e9 ici:<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>extrait de l&#8217;article publi\u00e9 dans &lsquo;le Betteravier&rsquo; de f\u00e9vrier\u00a02015<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":1,"footnotes":""},"categories":[142,129,135],"tags":[169],"class_list":["post-2662","post","type-post","status-publish","format-standard","hentry","category-plante","category-protection-des-plantes","category-sol","tag-articles-presentations"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bilan de l&#039;ann\u00e9e 2014 (Betteravier f\u00e9vrier 2015) - IRBAB-KBIVB<\/title>\n<meta name=\"description\" content=\"Bilan de l&#039;ann\u00e9e 2014. 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