{"id":7439,"date":"2025-09-19T13:41:47","date_gmt":"2025-09-19T11:41:47","guid":{"rendered":"https:\/\/lgseeds.be\/?p=7439"},"modified":"2025-09-19T13:41:50","modified_gmt":"2025-09-19T11:41:50","slug":"comment-renover-des-prairies-quand-il-fait-chaud-et-sec","status":"publish","type":"post","link":"https:\/\/lgseeds.be\/fr\/comment-renover-des-prairies-quand-il-fait-chaud-et-sec\/","title":{"rendered":"Comment r\u00e9nover des prairies quand il fait chaud et sec"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Les prairies subissent une nouvelle fois de fortes contraintes cet \u00e9t\u00e9. La combinaison de <strong>p\u00e9riodes longues de s\u00e9cheresse et de temp\u00e9ratures \u00e9lev\u00e9es<\/strong> est devenue la norme, ce qui fragilise consid\u00e9rablement les prairies. Comment faut-il alors r\u00e9nover des prairies?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00eame si la situation actuelle semble moins dramatique que lors des ann\u00e9es pr\u00e9c\u00e9dentes, l\u2019impact ne doit pas \u00eatre sous-estim\u00e9. Les parcelles d\u00e9j\u00e0 affaiblies par le pass\u00e9 et non r\u00e9nov\u00e9es n\u00e9cessitent une attention particuli\u00e8re. \u00c0 l\u2019inverse, les prairies r\u00e9cemment r\u00e9nov\u00e9es montrent une <strong>meilleure r\u00e9silience face aux conditions climatiques extr\u00eames<\/strong>.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/lgseeds.be\/fr\/comment-renover-des-prairies-quand-il-fait-chaud-et-sec\/#Quand_faut-il_renover_des_prairies\" >Quand faut-il r\u00e9nover des prairies ?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/lgseeds.be\/fr\/comment-renover-des-prairies-quand-il-fait-chaud-et-sec\/#Les_parcelles_les_plus_touchees\" >Les parcelles les plus touch\u00e9es<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/lgseeds.be\/fr\/comment-renover-des-prairies-quand-il-fait-chaud-et-sec\/#Consequences_de_labsence_de_renovation\" >Cons\u00e9quences de l\u2019absence de r\u00e9novation<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/lgseeds.be\/fr\/comment-renover-des-prairies-quand-il-fait-chaud-et-sec\/#Renover_des_prairies_ressemis_ou_sursemis\" >R\u00e9nover des prairies : ressemis ou sursemis ?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/lgseeds.be\/fr\/comment-renover-des-prairies-quand-il-fait-chaud-et-sec\/#Ressemis_complet_quand_lenvisager\" >Ressemis complet : quand l\u2019envisager ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/lgseeds.be\/fr\/comment-renover-des-prairies-quand-il-fait-chaud-et-sec\/#Sursemis_une_solution_rapide_et_efficace\" >Sursemis : une solution rapide et efficace<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/lgseeds.be\/fr\/comment-renover-des-prairies-quand-il-fait-chaud-et-sec\/#Les_recommandations_LG_pour_reussir_votre_renovation\" >Les recommandations LG pour r\u00e9ussir votre r\u00e9novation<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quand_faut-il_renover_des_prairies\"><\/span>Quand faut-il r\u00e9nover des prairies ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Les_parcelles_les_plus_touchees\"><\/span>Les parcelles les plus touch\u00e9es<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Les prairies qui ont souffert lors des \u00e9t\u00e9s pr\u00e9c\u00e9dents mais qui n\u2019ont pas encore \u00e9t\u00e9 ressem\u00e9es ou sursem\u00e9es doivent \u00eatre trait\u00e9es d\u00e8s cet automne. En effet, la s\u00e9cheresse provoque un <strong>d\u00e9garnissage rapide de la prairie<\/strong>, laissant place aux adventices.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Consequences_de_labsence_de_renovation\"><\/span>Cons\u00e9quences de l\u2019absence de r\u00e9novation<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Avec le retour des pluies, la prairie reverdit. Mais attention : ce regain est souvent constitu\u00e9 de p\u00e2turin, de gramin\u00e9es non productives ou d\u2019adventices. R\u00e9sultat :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Rendements plus faibles<\/strong> au printemps,<\/li>\n\n\n\n<li><strong>Hausse de la pression des adventices<\/strong>,<\/li>\n\n\n\n<li><strong>Moins de valeur alimentaire<\/strong> pour votre troupeau.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Renover_des_prairies_ressemis_ou_sursemis\"><\/span>R\u00e9nover des prairies : ressemis ou sursemis ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ressemis_complet_quand_lenvisager\"><\/span>Ressemis complet : quand l\u2019envisager ?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Le ressemis est recommand\u00e9 en cas de :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Forte pr\u00e9sence de mauvaises herbes,<\/li>\n\n\n\n<li>Pr\u00e9sence de <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Chiendent\" target=\"_blank\" rel=\"noopener\" title=\"\">chiendent<\/a> (la prairie doit alors \u00eatre d\u00e9truite avant le semis),<\/li>\n\n\n\n<li>Mauvaise structure du sol caus\u00e9 par le tassement,<\/li>\n\n\n\n<li>Teneurs en cendres trop \u00e9lev\u00e9es dans les ensilages.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-background wp-block-paragraph\" style=\"background-color:#f9e6e6\">\ud83d\udc49 <strong>Conseil pratique<\/strong> : r\u00e9alisez un ressemis \u00e0 <strong>50 kg\/ha<\/strong> pour garantir une prairie dense et productive.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sursemis_une_solution_rapide_et_efficace\"><\/span>Sursemis : une solution rapide et efficace<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Le sursemis est une alternative int\u00e9ressante pour r\u00e9nover des prairies, surtout si votre prairie contient encore <strong>au moins 70 % de bonnes gramin\u00e9es<\/strong> et si la pression des mauvaises herbes reste limit\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour maximiser vos chances de r\u00e9ussite :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Assurez une <strong>bonne humidit\u00e9 du sol<\/strong> (des pluies autour du semis sont indispensables),<\/li>\n\n\n\n<li>Intervenez au <strong>printemps ou en automne<\/strong> (septembre-octobre),<\/li>\n\n\n\n<li>Effectuez un passage \u00e0 la <strong>herse \u00e9trille<\/strong> avant le semis afin de faire de la place pour les nouvelles plantes d\u2019herbe.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-background wp-block-paragraph\" style=\"background-color:#f9e6e6\">\ud83d\udc49 <strong>Conseil pratique<\/strong> : effectuez le sursemis \u00e0 <strong>30 kg\/ha<\/strong> (ou 20 kg\/ha en cas de sursemis annuel).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Les_recommandations_LG_pour_reussir_votre_renovation\"><\/span>Les recommandations LG pour r\u00e9ussir votre r\u00e9novation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour garantir un rendement \u00e9lev\u00e9 et une prairie durable, LG recommande :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ressemis (50 kg\/ha) :\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/lgseeds.be\/fr\/produit\/belpre-3\/\" title=\"Belpr\u00e9 3\">Belpr\u00e9 3<\/a><\/strong> : p\u00e2turage et fauche,<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/lgseeds.be\/fr\/produit\/belpre-11\/\" title=\"Belpr\u00e9 11\">Belpr\u00e9 11<\/a><\/strong> : fauche intensive,<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/lgseeds.be\/fr\/produit\/belpre-2\/\" title=\"Belpr\u00e9 2\">Belpr\u00e9 2<\/a><\/strong> : association gramin\u00e9es-tr\u00e8fle.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Sursemis (30 kg\/ha ou 20 kg\/ha en cas de sursemis annuel) :\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/lgseeds.be\/fr\/produit\/belpre-revita\/\" title=\"Belpr\u00e9 Revita\">Belpr\u00e9 Revita<\/a><\/strong>,<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/lgseeds.be\/fr\/produit\/belpre-3\/\" title=\"Belpr\u00e9 3\">Belpr\u00e9 3<\/a><\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Les prairies subissent une nouvelle fois de fortes contraintes cet \u00e9t\u00e9. La combinaison de p\u00e9riodes longues de s\u00e9cheresse et de temp\u00e9ratures \u00e9lev\u00e9es est devenue la norme, ce qui fragilise consid\u00e9rablement les prairies. Comment faut-il alors r\u00e9nover des prairies? M\u00eame si la situation actuelle semble moins dramatique que lors des ann\u00e9es pr\u00e9c\u00e9dentes, l\u2019impact ne doit pas [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":904,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[317],"tags":[133,155],"class_list":["post-7439","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nieuws-fr","tag-grasland","tag-weide","wpbf-post"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"La combinaison de p\u00e9riodes longues de s\u00e9cheresse et de temp\u00e9ratures \u00e9lev\u00e9es fragilise consid\u00e9rablement les prairies. 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