{"id":9657,"date":"2021-12-28T16:44:13","date_gmt":"2023-09-20T18:32:03","guid":{"rendered":"https:\/\/redleafaquascaping.com\/?post_type=product&#038;p=9657"},"modified":"2023-09-20T14:33:04","modified_gmt":"2023-09-20T18:33:04","slug":"seachem-flourish-iron","status":"publish","type":"product","link":"https:\/\/redleafaquascaping.com\/fr\/produit\/seachem-flourish-iron\/","title":{"rendered":"Seachem Flourish Iron"},"content":{"rendered":"<p>Le fer est immobile dans les plantes, ce qui signifie que les plantes ne peuvent pas transf\u00e9rer le fer des feuilles plus anciennes vers les nouvelles. Par cons\u00e9quent, les sympt\u00f4mes de carence apparaissent d&rsquo;abord sur les feuilles nouvelles ou jeunes. Comme les plantes utilisent le fer pour produire de la chlorophylle, un manque de fer provoque la chlorose, c&rsquo;est-\u00e0-dire le jaunissement, des feuilles les plus jeunes. Les tiges peuvent \u00e9galement sembler courtes et minces. Si la carence est grave et prolong\u00e9e, chaque nouvelle feuille qui appara\u00eet est plus claire en couleur que la feuille pr\u00e9c\u00e9dente.<\/p>\n<p>Lors du choix d&rsquo;un suppl\u00e9ment de fer, il est important de conna\u00eetre la distinction entre les deux formes de fer. Le fer peut se trouver dans l&rsquo;un des deux \u00e9tats d&rsquo;oxydation : ferreux, ayant une charge +2, ou ferrique, ayant une charge +3. Le fer ferreux, la forme de fer pr\u00e9f\u00e9r\u00e9e, est soluble dans l&rsquo;eau \u00e0 n&rsquo;importe quel pH. En revanche, le fer ferrique est soluble uniquement en dessous d&rsquo;un pH d&rsquo;environ 5,5. Cependant, dans un aquarium plant\u00e9, le pH est plus susceptible d&rsquo;\u00eatre sup\u00e9rieur \u00e0 5,5, ce qui rendra le fer ferrique insoluble et provoquera sa pr\u00e9cipitation, se d\u00e9posant dans la zone racinaire. Une fois que cela se produit, l&rsquo;absorption foliaire devient impossible.<\/p>\n<p>Pour surmonter cette pr\u00e9cipitation, d&rsquo;autres produits utilisent un ch\u00e9late de fer ferrique : le fer-EDTA. Bien que cela maintienne la solubilit\u00e9, cela pr\u00e9sente quelques inconv\u00e9nients en ce qui concerne l&rsquo;absorption foliaire du fer. (1) La liaison fer-EDTA est tr\u00e8s forte, de sorte que tr\u00e8s peu de fer sera disponible pour les plantes sur une p\u00e9riode donn\u00e9e et (2) l&rsquo;\u00e9nergie physiologique doit \u00eatre d\u00e9pens\u00e9e par la plante pour extraire le fer ferrique du fer EDTA, puis le convertir (r\u00e9duire) en forme ferreuse. Notre approche est diff\u00e9rente, car nous utilisons un complexe (et non un ch\u00e9late) de fer ferreux dans Flourish Iron\u2122.<\/p>\n<p>Flourish Iron\u2122 est un suppl\u00e9ment de gluconate de fer ferreux fortement concentr\u00e9 (10 000 mg\/L). Les plantes peuvent beaucoup plus facilement b\u00e9n\u00e9ficier de Flourish Iron\u2122 car le gluconate de fer ferreux est d\u00e9j\u00e0 sous forme ferreuse, de sorte qu&rsquo;elles n&rsquo;ont pas besoin de d\u00e9penser de l&rsquo;\u00e9nergie pour le r\u00e9duire. Contrairement \u00e0 ce que d&rsquo;autres fabricants peuvent laisser entendre, le gluconate n&rsquo;est pas nocif pour les plantes ni pour les poissons. En fait, le gluconate de fer ferreux est mieux adapt\u00e9 \u00e0 l&rsquo;application foliaire que le fer EDTA en raison de la liaison relativement plus faible du fer-gluconate par rapport au fer-EDTA. De plus, le gluconate de fer ferreux a l&rsquo;avantage suppl\u00e9mentaire d&rsquo;\u00eatre une source de carbone.<\/p>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>Source de fer hautement concentr\u00e9e (10 000 mg\/L) pour l&rsquo;aquarium plant\u00e9<\/li>\n<li>Fer gluconate ferreux<\/li>\n<li>Le gluconate ferreux est mieux adapt\u00e9 \u00e0 l\u2019alimentation foliaire que le fer-EDTA<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":7438,"template":"","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":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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