{"id":821,"date":"2018-01-20T17:35:00","date_gmt":"2018-01-20T16:35:00","guid":{"rendered":"https:\/\/normandiemaine.cerfrance.fr\/arad2\/?p=821"},"modified":"2023-03-07T09:24:06","modified_gmt":"2023-03-07T08:24:06","slug":"activateur-de-vie-biologique-et-sol-vivant-le-vrai-du-faux","status":"publish","type":"post","link":"https:\/\/normandiemaine.cerfrance.fr\/arad2\/activateur-de-vie-biologique-et-sol-vivant-le-vrai-du-faux\/","title":{"rendered":"Activateurs de vie biologique et sol vivant"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Activateurs de vie biologique et sol vivant : le vrai du faux<\/h1>\n\n\n\n<p>Les <strong>activateurs de vie biologique sont souvent des produits complexes,<\/strong> contenant une multitude de substances actives. Les promesses sur l\u2019action de ces produits sont nombreuses :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>am\u00e9lioration de la nutrition<\/strong> par une meilleure bio disponibilit\u00e9 des \u00e9l\u00e9ments nutritifs et une meilleure absorption,<\/li><li><strong>stimulation de la croissance<\/strong> par une action sur le syst\u00e8me racinaire et\/ou v\u00e9g\u00e9tatif,<\/li><li>favorisation de la<strong> germination<\/strong>.<\/li><\/ul>\n\n\n\n<p><a href=\"https:\/\/www.arvalisinstitutduvegetal.fr\/index.html\" target=\"_blank\" rel=\"noreferrer noopener\">Arvalis<\/a> a men\u00e9 des essais sur le long terme. Dont l&rsquo;objectif est de juger l\u2019impact de ces produits sur le sol et sur le rendement des cultures. Les r\u00e9sultats sont alors \u00e9difiants. Et ils confortent donc la v\u00e9racit\u00e9 de la phrase suivante : <strong>la fertilit\u00e9 du sol ne s\u2019ach\u00e8te pas, elle se construit.<\/strong><\/p>\n\n\n<div class=\"_3d-flip-book  fb3d-fullscreen-mode full-size\" data-id=\"820\" 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>Les activateurs de la vie biologique des sols apport\u00e9s pendant plusieurs ann\u00e9es sur les m\u00eames essais ont permis d\u2019obtenir en situation de fertilisation N, P, K optimale et toutes cultures confondues, des gains de rendement moyens parfois significatifs, de l\u2019ordre de 0,7 \u00e0 4,5 %. Cependant, leur utilisation ne permet pas d\u2019envisager une substitution, m\u00eame partielle, d\u2019une fertilisation N, P, K classique sans risquer de p\u00e9naliser le rendement. <\/p>\n\n\n\n<p>Leur utilisation sur plusieurs ann\u00e9es s\u2019accompagne, dans un site sur trois, d\u2019une augmentation significative de la biomasse microbienne. Mais aucun effet positif sur l\u2019activit\u00e9 biologique des micro-organismes du sol n\u2019a \u00e9t\u00e9 mis en \u00e9vidence, contrairement aux effets revendiqu\u00e9s. Les gains de rendements observ\u00e9s s\u2019expliqueraient donc davantage par les quantit\u00e9s d\u2019\u00e9l\u00e9ments fertilisants souvent non n\u00e9gligeables apport\u00e9es par ces produits. Enfin, dans la plupart des cas, le gain de rendement obtenu n\u2019est pas suffisant pour compenser le surco\u00fbt li\u00e9 \u00e0 l\u2019utilisation de ces activateurs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Activateurs de vie biologique et sol vivant : le vrai du faux Les activateurs de vie biologique sont souvent des produits complexes, contenant une multitude de substances actives. Les promesses [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1517,"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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