{"id":611,"date":"2016-03-23T09:44:41","date_gmt":"2016-03-23T08:44:41","guid":{"rendered":"http:\/\/www.aridis.fr\/guides-conseils\/?p=190"},"modified":"2016-03-23T09:44:41","modified_gmt":"2016-03-23T08:44:41","slug":"comment-pourquoi-mesurer-ph","status":"publish","type":"post","link":"https:\/\/www.serresvaldeloire.com\/actus-conseils\/irrigation\/traitement-de-leau\/comment-pourquoi-mesurer-ph\/","title":{"rendered":"Comment et pourquoi mesurer un pH"},"content":{"rendered":"<p>Voici une mesure dont on entend r\u00e9guli\u00e8rement parler dans tous les domaines de la gestion de l&rsquo;eau. Voici nos conseils.<\/p>\n<h2>Qu&rsquo;est-ce que le pH et comment le mesurer ?<\/h2>\n<p>Mesurer un pH, c&rsquo;est <strong>mesurer l&rsquo;acidit\u00e9 ou l&rsquo;alcalinit\u00e9 d&rsquo;une solution<\/strong>, mesur\u00e9e sur une \u00e9chelle gradu\u00e9e de 0 (le plus acide) \u00e0 14 (le plus alcalin), le point neutre (= inerte) \u00e9tant 7.<\/p>\n<p>Il existe plusieurs m\u00e9thodes de mesure :<\/p>\n<ul>\n<li><strong>le papier sp\u00e9cial<\/strong> : un papier sp\u00e9cial imbib\u00e9 d&rsquo;un indicateur universel, qui change de couleur pour indiquer la mesure. Cette m\u00e9thode est rapide et peu ch\u00e8re, mais peu pr\u00e9cise.<\/li>\n<li><strong>les trousses chimiques<\/strong> : l&rsquo;\u00e9valuation est proche de celle obtenue avec un papier sp\u00e9cial, avec une pr\u00e9cision un peu sup\u00e9rieure, mais restant approximative<\/li>\n<li><strong>les pH-m\u00e8tres<\/strong> : voici la mesure la plus rapide, pr\u00e9cise et pratique pour des mesures quotidiennes. L&rsquo;indication est imm\u00e9diate et pr\u00e9cise, mais le co\u00fbt est sup\u00e9rieur : il s&rsquo;agit d&rsquo;un investissement rapidement amorti toutefois.<\/li>\n<\/ul>\n<h2>Sp\u00e9cificit\u00e9s de la mesure en hydroponie<\/h2>\n<p>La nature neutre \/ inerte du support hydroponique comporte beaucoup d&rsquo;oxyg\u00e8ne, mais aucun nutriment.<\/p>\n<p><strong>Ceux-ci proviennent uniquement de la solution nutritive<\/strong>. Les racines absorbent les nutriments \u00e0 diff\u00e9rentes vitesses, le pH des plants en hydroponie va beaucoup fluctuer.<\/p>\n<p>Il est donc imp\u00e9ratif de pouvoir mesurer, au quotidien, le pH de votre eau d&rsquo;arrosage ou d&rsquo;irrigation avant d&rsquo;ajouter les nutriments.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le pH est une donn\u00e9e technique dont on entend souvent parler, et qui rev\u00eat une importance particuli\u00e8re dans tous les domaines d&rsquo;intervention d&rsquo;Aridis, faisant g\u00e9n\u00e9ralement intervenir l&rsquo;eau. Nous vous pr\u00e9cisions les diff\u00e9rentes techniques de mesure du pH.<\/p>\n","protected":false},"author":2,"featured_media":684,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-611","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-traitement-de-leau","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Comment et pourquoi mesurer un pH - Blog SVL Solutions<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez comment mesurer l&#039;acidit\u00e9 ou l&#039;alcalinit\u00e9 d&#039;une solution gr\u00e2ce \u00e0 cet artciel de blog.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.serresvaldeloire.com\/actus-conseils\/irrigation\/traitement-de-leau\/comment-pourquoi-mesurer-ph\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment et pourquoi mesurer un pH - 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