{"id":687,"date":"2019-04-20T14:31:00","date_gmt":"2019-04-20T12:31:00","guid":{"rendered":"https:\/\/normandiemaine.cerfrance.fr\/arad2\/?p=687"},"modified":"2023-03-07T09:24:03","modified_gmt":"2023-03-07T08:24:03","slug":"systeme-semis-direct-sous-couvert-permanent","status":"publish","type":"post","link":"https:\/\/normandiemaine.cerfrance.fr\/arad2\/systeme-semis-direct-sous-couvert-permanent\/","title":{"rendered":"Syst\u00e8me semis direct sous couvert permanent"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Les syst\u00e8mes semis direct sous couvert permanent : les enseignements de 20 ans de l\u2019essai INRA La Cage<\/h1>\n\n\n<p>Pour faire face aux enjeux actuels, la <strong>recherche agronomique doit contribuer \u00e0 la mise au point de modes de production satisfaisant plusieurs objectifs<\/strong> :<\/p>\n<ul>\n<li>une<strong> exigence de production<\/strong> pour faire face \u00e0 l\u2019augmentation de la demande en produits agricoles,<\/li>\n<li>des<strong> imp\u00e9ratifs \u00e9conomiques<\/strong> pour maintenir la rentabilit\u00e9,<\/li>\n<li>l\u2019<strong>emploi agricole et des exigences environnementales<\/strong> de plus en plus fortes.<\/li>\n<\/ul>\n<p>Pour cela, l\u2019INRA a implant\u00e9 en 1998 un <a href=\"https:\/\/www6.versailles-grignon.inrae.fr\/observatoire-environnement\/Observation-et-experimentation-au-champ\/Essais-agronomiques\/Essai-Systemes-de-Cultures-de-La-Cage#:~:text=L'essai%20implant%C3%A9%20sur%20la,des%20pratiques%20sur%20l'environnement.\" target=\"_blank\" rel=\"noopener\">essai \u00ab syst\u00e8mes \u00bb sur la parcelle de La Cage \u00e0 Versailles<\/a>. Sur cet essai, sont encore compar\u00e9s aujourd\u2019hui <strong>quatre syst\u00e8mes.<\/strong> L&rsquo;objectif est<strong> d\u2019\u00e9valuer leurs performances et l\u2019impact des pratiques sur l\u2019environnement<\/strong>. Parmi les syst\u00e8mes mis en place, on retrouve notamment un syst\u00e8me \u00ab <strong>Sous Couvert V\u00e9g\u00e9tal<\/strong> \u00bb (SCV). Il se base sur la suppression du travail du sol et le maintien d\u2019une plante de couverture. Cet essai pionnier pour l\u2019\u00e9poque permet de disposer maintenant de plus de <strong>20 ans de r\u00e9f\u00e9rences sur les niveaux de production<\/strong>, la<strong> rentabilit\u00e9 \u00e9conomique<\/strong>, le<strong> temps de travail<\/strong>, l\u2019<strong>impact sur l\u2019environnement<\/strong> ou encore <strong>sur la biodiversit\u00e9 des sols<\/strong> et ce <strong>en comparaison avec un syst\u00e8me \u00ab productif \u00bb, un syst\u00e8me \u00ab bas intrants \u00bb et un syst\u00e8me \u00ab bio \u00bb<\/strong>.<\/p>\n\n<div class=\"_3d-flip-book  fb3d-fullscreen-mode full-size\" data-id=\"686\" 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 || 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&& FB3D_CLIENT_LOCALE.render && FB3D_CLIENT_LOCALE.render();<\/script>\n\n\n\n<p>Retrouvez l&rsquo;int\u00e9gralit\u00e9 de nos <a href=\"https:\/\/normandiemaine.cerfrance.fr\/arad2\/category\/agroecologie\/\" target=\"_blank\" rel=\"noreferrer noopener\">publications sur l&rsquo;agro\u00e9cologie<\/a> sur notre site internet.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pour faire face aux enjeux actuels, la recherche agronomique doit contribuer \u00e0 la mise au point de modes de production.<\/p>\n","protected":false},"author":4,"featured_media":1562,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","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":"default","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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