{"id":24961,"date":"2026-03-05T15:25:09","date_gmt":"2026-03-05T14:25:09","guid":{"rendered":"https:\/\/evajura.com\/?post_type=dossiers&#038;p=24961"},"modified":"2026-03-05T15:25:09","modified_gmt":"2026-03-05T14:25:09","slug":"meteo-de-lherbe-23-fevrier-au-2-mars-2026","status":"publish","type":"dossiers","link":"https:\/\/evajura.com\/en\/dossiers\/meteo-de-lherbe-23-fevrier-au-2-mars-2026\/","title":{"rendered":"M\u00e9t\u00e9o de l\u2019herbe \u2013 23 f\u00e9vrier au 2 mars 2026"},"content":{"rendered":"<p><strong>\u00a0Reverdissement et premi\u00e8res croissances<\/strong><\/p>\n<p>Des temp\u00e9ratures exceptionnellement \u00e9lev\u00e9es en journ\u00e9e pour la saison avec du soleil contribuent au d\u00e9marrage de la v\u00e9g\u00e9tation avec des prairies qui reverdissent.\u00a0 En plaine, avec les premi\u00e8res croissances, les mises \u00e0 l\u2019herbe, sous r\u00e9serve d\u2019avoir des sols porteurs vont progressivement d\u00e9marrer \u00e0 compter du rep\u00e8re des 300 \u00b0C cumul\u00e9s depuis le 1er f\u00e9vrier qui pourrait \u00eatre atteint la deuxi\u00e8me quinzaine de mars.\u00a0 Les secteurs plateaux-montagne devront encore patienter avec des temp\u00e9ratures fra\u00eeches la nuit et localement quelques r\u00e9sidus neigeux\u2026<\/p>\n<p>&nbsp;<\/p>\n<p><strong>G\u00e9rer les prairies avec les sommes de temp\u00e9rature<\/strong><\/p>\n<p>Qui dit nouvelle ann\u00e9e dit reprise des mesures des parcelles du r\u00e9seau de suivi de pousse de l\u2019herbe. Au-del\u00e0 des croissances du couvert v\u00e9g\u00e9tal, la carte de la m\u00e9t\u00e9o de l\u2019herbe vous renseigne \u00e9galement sur l\u2019avancement des sommes de temp\u00e9ratures.<\/p>\n<p>Elles correspondent \u00e0 des stades de d\u00e9veloppement de la plante (ind\u00e9pendamment de la pluviom\u00e9trie). Ces sommes de temp\u00e9ratures permettent donc de disposer de rep\u00e8res sur la p\u00e9riode id\u00e9ale pour la valorisation du p\u00e2turage et les diff\u00e9rentes r\u00e9coltes de fourrages en particulier. Elles sont calcul\u00e9es en additionnant les temp\u00e9ratures moyennes journali\u00e8res si elles d\u00e9passent 0\u00b0C et sans d\u00e9passer 18\u00b0C (pour l\u2019herbe), \u00e0 partir de deux dates :<\/p>\n<ul>\n<li>\u2013 1er janvier pour le d\u00e9marrage de v\u00e9g\u00e9tation (rep\u00e8re des 200 \u00b0C)<\/li>\n<li>\u2013 1er f\u00e9vrier pour la gestion de l\u2019herbe et des r\u00e9coltes<\/li>\n<\/ul>\n<p>La frise ci-dessous illustre les rep\u00e8res d\u2019exploitation des prairies au regard des sommes de temp\u00e9ratures :<\/p>\n<p>&nbsp;<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-24944\" src=\"https:\/\/evajura.com\/wp-content\/uploads\/2026\/03\/Meteo-de-lherbe-23-fevrier-02-mars-1.png\" sizes=\"(max-width: 700px) 100vw, 700px\" srcset=\"https:\/\/evajura.com\/wp-content\/uploads\/2026\/03\/Meteo-de-lherbe-23-fevrier-02-mars-1.png 622w, https:\/\/evajura.com\/wp-content\/uploads\/2026\/03\/Meteo-de-lherbe-23-fevrier-02-mars-1-120x42.png 120w\" alt=\"\" width=\"700\" height=\"248\" \/><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Grace aux sommes de temp\u00e9rature, il est donc possible d\u2019alerter les \u00e9leveurs sur l\u2019arriv\u00e9e des moments cl\u00e9s de la gestion de l\u2019herbe.<\/p>\n<p>Certes les ann\u00e9es se suivent, mais elles ne se ressemblent pas si on se fie uniquement aux dates du calendrier.<\/p>\n<p>Pour vous l\u2019illustrer, nous avons compar\u00e9 sur plus de 10 ans les dates auxquelles sont atteintes ces sommes de temp\u00e9ratures. Les communes utilis\u00e9es ont \u00e9t\u00e9 Rioz (70) et Lons-le-Saunier (39).<\/p>\n<p>Quelle que soit l\u2019altitude, quelle que soit la latitude, des variations importantes s\u2019observent entre les ann\u00e9es dont certaines dans les extr\u00eames (tendances \u00e0 \u00eatre pr\u00e9coces). Il est aussi \u00e0 noter que l\u2019on ne peut pas pr\u00e9dire les sommes de temp\u00e9ratures \u00e0 venir. Par exemple, ce n\u2019est pas parce que l\u2019on atteint pr\u00e9cocement les 200 degr\u00e9s-jours que l\u2019on r\u00e9coltera plus t\u00f4t les foins.<\/p>\n<p>C\u2019est pourquoi il est important de se fier plut\u00f4t aux sommes de temp\u00e9rature qu\u2019\u00e0 une date pr\u00e9cise ! Parce qu\u2019un fourrage r\u00e9colt\u00e9 au bon stade c\u2019est un gage de rendement et de qualit\u00e9 !<\/p>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-24948\" src=\"https:\/\/evajura.com\/wp-content\/uploads\/2026\/03\/Meteo-de-lherbe-23-fevrier-02-mars-2.png\" sizes=\"(max-width: 700px) 100vw, 700px\" srcset=\"https:\/\/evajura.com\/wp-content\/uploads\/2026\/03\/Meteo-de-lherbe-23-fevrier-02-mars-2.png 642w, https:\/\/evajura.com\/wp-content\/uploads\/2026\/03\/Meteo-de-lherbe-23-fevrier-02-mars-2-120x16.png 120w\" alt=\"\" width=\"700\" height=\"92\" \/><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-24952\" src=\"https:\/\/evajura.com\/wp-content\/uploads\/2026\/03\/Meteo-de-lherbe-23-fevrier-02-mars-3.png\" sizes=\"(max-width: 700px) 100vw, 700px\" srcset=\"https:\/\/evajura.com\/wp-content\/uploads\/2026\/03\/Meteo-de-lherbe-23-fevrier-02-mars-3.png 678w, https:\/\/evajura.com\/wp-content\/uploads\/2026\/03\/Meteo-de-lherbe-23-fevrier-02-mars-3-120x85.png 120w\" alt=\"\" width=\"700\" height=\"497\" \/>\n<p>&nbsp;<\/p>\n<p>Vous pouvez suivre les sommes de temp\u00e9ratures dans votre journal agricole local ou dans la m\u00e9t\u00e9o de l\u2019herbe que vous retrouverez chaque semaine.<\/p>\n","protected":false},"author":2804,"featured_media":24940,"comment_status":"open","ping_status":"closed","template":"","categories":[97],"tags":[],"class_list":["post-24961","dossiers","type-dossiers","status-publish","has-post-thumbnail","hentry","category-meteo-de-lherbe"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>M\u00e9t\u00e9o de l\u2019herbe \u2013 23 f\u00e9vrier au 2 mars 2026 - Eva Jura<\/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:\/\/evajura.com\/en\/dossiers\/meteo-de-lherbe-23-fevrier-au-2-mars-2026\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"M\u00e9t\u00e9o de l\u2019herbe \u2013 23 f\u00e9vrier au 2 mars 2026 - Eva Jura\" \/>\n<meta property=\"og:description\" content=\"\u00a0Reverdissement et premi\u00e8res croissances Des temp\u00e9ratures exceptionnellement \u00e9lev\u00e9es en journ\u00e9e pour la saison avec du soleil contribuent au d\u00e9marrage de la v\u00e9g\u00e9tation avec des prairies qui reverdissent.\u00a0 En plaine, avec les premi\u00e8res croissances, les mises \u00e0 l\u2019herbe, sous r\u00e9serve d\u2019avoir des sols porteurs vont progressivement d\u00e9marrer \u00e0 compter du rep\u00e8re des 300 \u00b0C cumul\u00e9s depuis... 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