{"id":2370,"date":"2023-02-01T14:20:47","date_gmt":"2023-02-01T13:20:47","guid":{"rendered":"https:\/\/normandiemaine.cerfrance.fr\/arad2\/?p=2370"},"modified":"2023-03-07T09:23:41","modified_gmt":"2023-03-07T08:23:41","slug":"sous-semis-couvert-legumineuses-dans-une-culture","status":"publish","type":"post","link":"https:\/\/normandiemaine.cerfrance.fr\/arad2\/sous-semis-couvert-legumineuses-dans-une-culture\/","title":{"rendered":"Sous-semis et couvert de l\u00e9gumineuses"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Le sous-semis : implanter un couvert de l\u00e9gumineuses dans une culture<\/h1>\n\n\n\n<p>D\u00e9couvrez notre fiche pratique sur le sous-semis et le couvert de l\u00e9gumineuses dans une culture. <\/p>\n\n\n\n<p>En agriculture biologique, l\u2019implantation des couverts\u00a0post moisson est compliqu\u00e9e.\u00a0En effet, le salissement\u00a0oblige souvent des passages\u00a0d\u2019outils, ce qui ass\u00e8che le sol et\u00a0rend le semis du couvert impossible\u00a0ou tardif\u00a0avec par cons\u00e9quent un\u00a0faible d\u00e9veloppement.\u00a0Une des techniques utilis\u00e9es par les agriculteurs en agriculture biologique pour r\u00e9ussir leur couvert est de l&rsquo;implanter en sous semis dans la culture en place. <\/p>\n\n\n\n<p>Cette fiche reprend quatre exemples  d&rsquo;agriculteurs.<\/p>\n\n\n<div class=\"_3d-flip-book  fb3d-fullscreen-mode full-size\" data-id=\"2372\" data-mode=\"fullscreen\" data-title=\"false\" data-template=\"short-white-book-view\" data-lightbox=\"dark-shadow\" data-urlparam=\"fb3d-page\" data-page-n=\"0\" data-pdf=\"\" data-tax=\"null\" data-thumbnail=\"\" data-cols=\"3\" data-book-template=\"default\" data-trigger=\"\"><\/div><script type=\"text\/javascript\">window.FB3D_CLIENT_DATA = window.FB3D_CLIENT_DATA || [];FB3D_CLIENT_DATA.push('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');window.FB3D_CLIENT_LOCALE && FB3D_CLIENT_LOCALE.render && FB3D_CLIENT_LOCALE.render();<\/script>\n\n\n\n<p>En agriculture biologique, l\u2019implantation des couverts post moisson est compliqu\u00e9e. En effet, le salissement oblige souvent des passages d\u2019outils, ce qui ass\u00e8che le sol et rend le semis du couvert impossible ou tardif (faible d\u00e9veloppement).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis.jpg?resize=1024%2C724&#038;ssl=1\" alt=\"Le sous-semis : implanter un couvert de l\u00e9gumineuses dans une culture\" class=\"wp-image-2374\" width=\"1024\" height=\"724\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis.jpg?resize=1024%2C724&amp;ssl=1 1024w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis.jpg?resize=300%2C212&amp;ssl=1 300w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis.jpg?resize=768%2C543&amp;ssl=1 768w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis.jpg?resize=1536%2C1086&amp;ssl=1 1536w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis.jpg?w=1754&amp;ssl=1 1754w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption>Le sous-semis : implanter un couvert de l\u00e9gumineuses dans une culture<\/figcaption><\/figure>\n\n\n\n<p>Les<strong> trois objectifs du sous-semi <\/strong>avec l&rsquo;implatation d&rsquo;un couvert de l\u00e9gumineuses dans une culture :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>R\u00e9ussir l\u2019implantation d\u2019un couvert en Agriculture Biologique sans travail du sol<\/li><li>Limiter le salissement de la culture<\/li><li>Apporter de l\u2019azote dans le syst\u00e8me<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Le principe du sous-semi et couvert de l\u00e9gumineuses dans une culture<\/h2>\n\n\n\n<p>Il s&rsquo;agit de l&rsquo;implantation d\u2019un couvert, principalement de l\u00e9gumineuses,dans une<strong> culture en cours de d\u00e9veloppement<\/strong>.<\/p>\n\n\n\n<p>Quatre exemples sont alors pr\u00e9sent\u00e9s dans cette fiche : Vincent CHABROUD, Yann BERNEY, Nicolas CHENUZ et St\u00e9phane CHALLANDES.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vincent CHABROUD : un itin\u00e9raire technique abouti<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"1024\" height=\"724\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis2.jpg?resize=1024%2C724&#038;ssl=1\" alt=\"Vincent CHABROUD : un itin\u00e9raire technique abouti\" class=\"wp-image-2375\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis2.jpg?resize=1024%2C724&amp;ssl=1 1024w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis2.jpg?resize=300%2C212&amp;ssl=1 300w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis2.jpg?resize=768%2C543&amp;ssl=1 768w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis2.jpg?resize=1536%2C1086&amp;ssl=1 1536w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis2.jpg?w=1754&amp;ssl=1 1754w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption>Vincent CHABROUD : un itin\u00e9raire technique abouti<\/figcaption><\/figure>\n\n\n\n<p>C\u00e9r\u00e9alier \u00e0 Toussieur, dans le Rh\u00f4ne, Vincent CHABROUD est en agriculture biologique depuis 2017. Il implante un couvert de tr\u00e8fle violet dans le bl\u00e9 fin mars avec un semoir JD 750A qui permet un bon rappui sans p\u00e9naliser le rendement du bl\u00e9 (35 q\/ha en moyenne). Avec qutre ann\u00e9es de recul, aujourd&rsquo;hui il a g\u00e9n\u00e9ralis\u00e9 cette pratique \u00e0 l&rsquo;ensemble des surfaces de c\u00e9r\u00e9ales.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nicolas CHENUZ : une pratique adapt\u00e9e \u00e0 l\u2019\u00e9levage<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"1024\" height=\"724\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis3.jpg?resize=1024%2C724&#038;ssl=1\" alt=\"Nicolas CHENUZ : une pratique adapt\u00e9e \u00e0 l\u2019\u00e9levage\" class=\"wp-image-2376\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis3.jpg?resize=1024%2C724&amp;ssl=1 1024w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis3.jpg?resize=300%2C212&amp;ssl=1 300w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis3.jpg?resize=768%2C543&amp;ssl=1 768w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis3.jpg?resize=1536%2C1086&amp;ssl=1 1536w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis3.jpg?w=1754&amp;ssl=1 1754w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption>Nicolas CHENUZ : une pratique adapt\u00e9e \u00e0 l\u2019\u00e9levage<\/figcaption><\/figure>\n\n\n\n<p>Bas\u00e9 en Suiss, Nicolas\u00a0CHENUZ est \u00e9leveur et en agriculture biologique depuis 2011. La pratique du sous semis de tr\u00e8fles violet et blanc lui permet de disposer d&rsquo;une source de fourrage suppl\u00e9mentaire \u00e0 l&rsquo;automne notamment lorsque les prairies d\u00e9crochent.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Yann BERNEY : un sursemis en cas d\u2019\u00e9chec<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"724\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis4.jpg?resize=1024%2C724&#038;ssl=1\" alt=\"Yann BERNEY : un sursemis en cas d\u2019\u00e9chec\" class=\"wp-image-2377\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis4.jpg?resize=1024%2C724&amp;ssl=1 1024w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis4.jpg?resize=300%2C212&amp;ssl=1 300w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis4.jpg?resize=768%2C543&amp;ssl=1 768w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis4.jpg?resize=1536%2C1086&amp;ssl=1 1536w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis4.jpg?w=1754&amp;ssl=1 1754w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption>Yann BERNEY : un sursemis en cas d\u2019\u00e9chec<\/figcaption><\/figure>\n\n\n\n<p>En Suisse, Yves BERNEY, \u00e9leveur, s\u00e8me \u00e0 la vol\u00e9e un m\u00e9lange tr\u00e8fle violet et tr\u00e8fle blanc au stade deux noeuds de la c\u00e9r\u00e9ale. Si il observe un faible d\u00e9veloppement des tr\u00e8fles, il n&rsquo;h\u00e9site pas \u00e0 sursemer un tr\u00e8fle incarnat juste apr\u00e8s la moisson. Le m\u00e9lange peut \u00eatre broy\u00e9 ou ensil\u00e9 selon l&rsquo;ann\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">St\u00e9phane CHALLANDES : une pratique test\u00e9e en altitude<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"724\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis5.jpg?resize=1024%2C724&#038;ssl=1\" alt=\"St\u00e9phane CHALLANDES : une pratique test\u00e9e en altitude\" class=\"wp-image-2378\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis5.jpg?resize=1024%2C724&amp;ssl=1 1024w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis5.jpg?resize=300%2C212&amp;ssl=1 300w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis5.jpg?resize=768%2C543&amp;ssl=1 768w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis5.jpg?resize=1536%2C1086&amp;ssl=1 1536w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis5.jpg?w=1754&amp;ssl=1 1754w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption>St\u00e9phane CHALLANDES : une pratique test\u00e9e en altitude<\/figcaption><\/figure>\n\n\n\n<p>Bas\u00e9 en Suisse, St\u00e9phane CHALLANDES est en agriculture biologique depuis 2017 et pratique le sous semis depuis cinq ans. Il observe qu&rsquo;en cas d&rsquo;\u00e9t\u00e9\u00a0pluvieux, la portance des sols est meilleure et lui facilite les moissons. Par contre, en ann\u00e9e s\u00e8che, il a parfois observ\u00e9 une perte de rendement de la c\u00e9r\u00e9ales avec cette technique.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Bilan : le sous-semis, pratique de s\u00e9curisation du couvert<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"724\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis6.jpg?resize=1024%2C724&#038;ssl=1\" alt=\"Bilan : le sous-semis, pratique de s\u00e9curisation du couvert\" class=\"wp-image-2380\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis6.jpg?resize=1024%2C724&amp;ssl=1 1024w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis6.jpg?resize=300%2C212&amp;ssl=1 300w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis6.jpg?resize=768%2C543&amp;ssl=1 768w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis6.jpg?resize=1536%2C1086&amp;ssl=1 1536w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2023\/02\/Fiche-pratique_02_Le-sous-semis6.jpg?w=1754&amp;ssl=1 1754w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption>Bilan : le sous-semis, pratique de s\u00e9curisation du couvert<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Transposabilit\u00e9 du sous-semis avec le couvert de l\u00e9gumineuses dans la culture<\/h3>\n\n\n\n<p>La pratique du sous-semis <strong>r\u00e9ussit moins bien lorsque le potentiel de la c\u00e9r\u00e9ale est \u00e9lev\u00e9 <\/strong>(forte fertilisation ou potentiel de sol \u00e9lev\u00e9) car l\u2019<strong>acc\u00e8s \u00e0 la lumi\u00e8re<\/strong> est plus compliqu\u00e9.<\/p>\n\n\n\n<p>L\u2019application en agriculture conventionnelle semble donc plus laborieuse.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Points cl\u00e9s de la r\u00e9ussite du sous-semis<\/h3>\n\n\n\n<p>Il y&rsquo;a plusieurs points cl\u00e9s de r\u00e9ussite du sous-semis : <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Parcelle propre<\/strong> lors du semis<\/li><li><strong>Humidit\u00e9<\/strong> du sol suffisante et bon contact sol\/graine lors du semis<\/li><li><strong>Densit\u00e9<\/strong> du couvert \u00e0 <strong>adapter <\/strong>en fonction des objectifs (priorisation du couvert ou la culture)<\/li><li>Choisir des c\u00e9r\u00e9ales en fonction de leur capacit\u00e9 d\u2019<strong>\u00e9touffement<\/strong><\/li><li>Moissonner haut<\/li><li><strong>Faucher post moisson<\/strong> : facilite la d\u00e9gradation des pailles (permet le d\u00e9sherbage m\u00e9canique en N+1) et donne de la lumi\u00e8re au couvert<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion : une pratique simple et peu risqu\u00e9e<\/h2>\n\n\n\n<p>La pratique semble avoir fait ses preuves dans une <strong>diversit\u00e9 de contextes p\u00e9doclimatiques<\/strong>. Le semis peut se faire avec <strong>diff\u00e9rents outils <\/strong>en fonction du mat\u00e9riel disponible.<\/p>\n\n\n\n<p>L\u2019esp\u00e8ce utilis\u00e9e est variable selon les contextes. Le <strong>tr\u00e8fle blanc et tr\u00e8fle violet<\/strong> sont les plus utilis\u00e9es. Enfin, la <strong>prise de risque semble limit\u00e9e<\/strong>. Cette pratique apparait donc \u00eatre un bon levier pour couvrir le sol et r\u00e9duire le<strong> travail du sol <\/strong>en agriculture biologique.<\/p>\n\n\n\n<p>D\u00e9couvrez notre fiche pratique exposant le <a href=\"https:\/\/normandiemaine.cerfrance.fr\/arad2\/semis-direct-sous-couvert-permanent-en-agriculture-biologique\/\" target=\"_blank\" rel=\"noreferrer noopener\">semis-direct sous couvert<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le sous-semis : implanter un couvert de l\u00e9gumineuses dans une culture<\/p>\n","protected":false},"author":4,"featured_media":2381,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[37,31],"tags":[],"class_list":["post-2370","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ameliorer-ses-sols","category-gestion-des-sols"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sous-semis et couvert de l\u00e9gumineuses - L&#039;ARAD2<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez cette fiche pratique sur le sous-semis et l&#039;implantation d&#039;un couvert de l\u00e9gumineuses dans une culture\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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