{"id":9,"date":"2016-06-30T08:28:48","date_gmt":"2016-06-30T08:28:48","guid":{"rendered":"http:\/\/sulfatodro.cluster003.ovh.net\/?page_id=9"},"modified":"2021-09-12T13:59:59","modified_gmt":"2021-09-12T13:59:59","slug":"fertilizante","status":"publish","type":"page","link":"https:\/\/www.alquera.com\/fr\/sulfato-de-potasio\/fertilizante\/","title":{"rendered":"Engrais \u00e0 base de sulfate de potassium"},"content":{"rendered":"<p>Le <a href=\"https:\/\/www.alquera.com\/fr\/sulfato-de-potasio\/\"><strong>Sulfate de Potassium<\/strong><\/a>\u00a0 ou le sulfate de potassium est un compos\u00e9 qui est largement utilis\u00e9 comme un <strong>engrais<\/strong> de diverses cultures, puisqu'il s'agit d'une source importante de <strong>potassium.<\/strong> Le potassium est l'un des 12 principaux nutriments dont les plantes ont besoin pour se d\u00e9velopper.<\/p>\n<h2>Le sulfate de potassium comme engrais<\/h2>\n<p>Le potassium est un \u00e9l\u00e9ment assez commun dans la nature. On le trouve \u00e0 la surface des argiles et dans les diff\u00e9rentes couches d'argile, mais il n'est gu\u00e8re absorb\u00e9 par les racines des plantes de cette mani\u00e8re. Le potassium peut \u00e9galement \u00eatre obtenu du sol par d\u00e9gradation bact\u00e9rienne, mais ce processus est tr\u00e8s lent et insuffisant pour les niveaux requis dans une culture. Il est donc n\u00e9cessaire de faire un <strong>extra potassium<\/strong>. L'une des fa\u00e7ons les plus courantes de le faire consiste \u00e0 <strong>Sulfate de Potassium<\/strong><\/p>\n<h2>Le potassium dans les plantes<\/h2>\n<h3>Fonction du potassium dans les plantes<\/h3>\n<p>Le <strong>potassium<\/strong> est l'un des 12 principaux nutriments dont les plantes ont besoin. Le potassium, en particulier, est, avec l'azote et le phosphore, l'un des trois nutriments dont les plantes ont le plus besoin.<\/p>\n<p>La pr\u00e9sence de potassium dans les plantes remplit des fonctions importantes telles que les suivantes :<\/p>\n<ul>\n<li><strong>Il forme des sucres :<\/strong>\u00a0Une bonne concentration de potassium est la caract\u00e9ristique qui permet \u00e0 un fruit d'\u00eatre plus sucr\u00e9 qu'un autre ; ainsi, si le go\u00fbt des fruits ou des l\u00e9gumes est un peu acide, c'est probablement un manque de potassium.<\/li>\n<\/ul>\n<ul>\n<li>Stimule le <strong>teneur en eau<\/strong> des cellules, et ce fait est donc \u00e9troitement li\u00e9 \u00e0 l'engraissement et \u00e0 la qualit\u00e9 du fruit. Il a \u00e9galement un effet de contr\u00f4le sur la perm\u00e9abilit\u00e9 des membranes cellulaires. Moins de perte d'eau signifie une meilleure conservation des fruits et l\u00e9gumes. Ainsi, le potassium participe \u00e0 l'engraissement et \u00e0 la qualit\u00e9 du fruit, ainsi qu'\u00e0 sa teneur en eau, ce qui permet une meilleure conservation des fruits et l\u00e9gumes.<\/li>\n<\/ul>\n<ul>\n<li>Le potassium favorise \u00e9galement l'absorption d'autres nutriments tels que l'azote, le phosphore et le fer.<\/li>\n<\/ul>\n<ul>\n<li>R\u00e9sistance accrue des plantes : Le potassium contribue \u00e0 la r\u00e9sistance de la plante au froid et \u00e0 la chaleur excessive ; il est \u00e9galement renforc\u00e9 en pr\u00e9sence d'insectes et de maladies.<\/li>\n<\/ul>\n<h3>Sympt\u00f4mes de la carence en potassium<\/h3>\n<p>Carence en potassium\u00a0<strong>peut \u00eatre observ\u00e9 <\/strong>\u00a0Les feuilles vertes jaunissent et les bords et les extr\u00e9mit\u00e9s des feuilles plus anciennes se dess\u00e8chent. Dans les plantes d\u00e9ficientes en potassium, la teneur en potassium est r\u00e9duite. <strong>floraison<\/strong> et le d\u00e9veloppement de l'ensemble de la plante.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-32217 aligncenter\" src=\"https:\/\/www.alquera.com\/wp-content\/uploads\/2020\/12\/falta-sulfato-de-potasio.jpg\" alt=\"falta de sulfato de potasio\" width=\"275\" height=\"183\" \/><\/p>\n<h2>Quand fertiliser avec du sulfate de potassium<\/h2>\n<p>Le sulfate de potassium est l'une des formes les plus couramment utilis\u00e9es pour fournir du potassium aux cultures. Son utilisation est motiv\u00e9e par la d\u00e9tection d'un manque de potassium dans les plantes ou de fa\u00e7on r\u00e9guli\u00e8re en raison de l'une des situations suivantes<\/p>\n<ul>\n<li>Lorsque la principale carence du sol est le potassium ou que les niveaux de potassium sont ad\u00e9quats et que nous devons reconstituer le potassium consomm\u00e9 par les plantes.<\/li>\n<li>Lorsque les cultures consomment de grandes quantit\u00e9s de potassium, comme dans le cas de la culture des tomates ou du paprika, par exemple.<\/li>\n<li>Lorsqu'il s'agit de r\u00e9duire le pH d'un sol alcalin.<\/li>\n<li>Dans le cas des sols sablonneux, la carence en potassium est tr\u00e8s courante, car la pluie emporte le potassium des racines. Une \u00e9tude constante du sol est toujours conseill\u00e9e.<\/li>\n<li>Dans les plantes d'aquarium, il est particuli\u00e8rement important car le potassium ne peut \u00eatre obtenu \u00e0 partir d'autres sources. Vous pouvez en savoir plus sur le Sulfate de potassium dans les plantes d'aquarium.<\/li>\n<\/ul>\n<h2>Constituants Sulfate de Potassium Engrais<\/h2>\n<table>\n<tbody>\n<tr>\n<td colspan=\"2\" width=\"449\"><strong>Propri\u00e9t\u00e9s chimiques\u00a0<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><strong>Formule chimique:<\/strong><\/td>\n<td width=\"224\">K<sub>2<\/sub>SO<sub>4<\/sub><\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><strong>Contenu K20<\/strong><\/td>\n<td width=\"224\">48-53%<\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><strong>Teneur en soufre<\/strong><\/td>\n<td width=\"224\">17-18%<\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><strong>Solubilit\u00e9 dans l'eau (25\u00b0C)<\/strong><\/td>\n<td width=\"224\">120 g\/l<\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><strong>pH de la solution<\/strong><\/td>\n<td width=\"224\">7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Dosage de l'engrais Sulfate de Potassium<\/h2>\n<p>Pour conna\u00eetre les besoins en sulfate de potassium d'un sol donn\u00e9, il est n\u00e9cessaire de r\u00e9aliser une \u00e9tude de sol et de recevoir une prescription d'un technicien ou d'un agronome. \u00c0 titre indicatif, le tableau suivant peut \u00eatre utilis\u00e9 pour la gestion du sulfate de potassium :<\/p>\n<table>\n<tbody>\n<tr>\n<td rowspan=\"2\" width=\"150\"><strong>Niveau de K et S <\/strong><\/p>\n<p><strong>sur le terrain<\/strong><\/td>\n<td colspan=\"2\" width=\"299\"><strong>Dose requise de sulfate de potassium<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"150\"><strong>Granulaire<\/strong><\/td>\n<td width=\"150\"><strong>Poudre soluble<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"150\">Tr\u00e8s faible<\/td>\n<td width=\"150\">150-200 Kg\/ha<\/td>\n<td width=\"150\">1 Kg\/200litres<\/td>\n<\/tr>\n<tr>\n<td width=\"150\">Sous<\/td>\n<td width=\"150\">100-150 Kg\/ha<\/td>\n<td width=\"150\">750gr\/200litres<\/td>\n<\/tr>\n<tr>\n<td width=\"150\">Moyen<\/td>\n<td width=\"150\">50-100Kg\/ha<\/td>\n<td width=\"150\">500gr\/200litres<\/td>\n<\/tr>\n<tr>\n<td width=\"150\">Haut<\/td>\n<td width=\"150\">Il ne n\u00e9cessite pas<\/td>\n<td width=\"150\">Il ne n\u00e9cessite pas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3 class=\"widget-title\">Acheter <\/h3><div><div class=\"woocommerce\"><ul class=\"products columns-4\">\n<li class=\"desktop-align-left tablet-align-left mobile-align-left ast-product-gallery-layout-horizontal-slider ast-magnify-disabled ast-product-single-variable ast-product-tabs-layout-horizontal ast-qv-on-image product type-product post-495 status-publish first instock product_cat-productos-experimentos product_cat-productos has-post-thumbnail taxable shipping-taxable purchasable product-type-variable has-default-attributes\">\n\t<a href=\"https:\/\/www.alquera.com\/fr\/permanganato-de-potasio\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.alquera.com\/wp-content\/uploads\/2016\/01\/permanganato-200g-foto-nueva-300x300.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"permanganato 200g\" srcset=\"https:\/\/www.alquera.com\/wp-content\/uploads\/2016\/01\/permanganato-200g-foto-nueva-300x300.png 300w, https:\/\/www.alquera.com\/wp-content\/uploads\/2016\/01\/permanganato-200g-foto-nueva-150x150.png 150w, https:\/\/www.alquera.com\/wp-content\/uploads\/2016\/01\/permanganato-200g-foto-nueva-12x12.png 12w, https:\/\/www.alquera.com\/wp-content\/uploads\/2016\/01\/permanganato-200g-foto-nueva-100x100.png 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><h2 class=\"woocommerce-loop-product__title\">Permanganate de Potassium<\/h2><div class=\"review-rating\"><div class=\"star-rating\"><span style=\"width:100%\" data-no-translation=\"\" data-trp-gettext=\"\">Note <strong class=\"rating\">5.00<\/strong> sur 5<\/span><\/div><\/div>\n<\/a><a href=\"https:\/\/www.alquera.com\/fr\/permanganato-de-potasio\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_495\" data-quantity=\"1\" class=\"button product_type_variable add_to_cart_button\" data-product_id=\"495\" data-product_sku=\"AL100111\" aria-label=\"S\u00e9lectionner les options pour \u201cPermanganato de Potasio\u201d\" rel=\"nofollow\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Choix des options<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_495\" class=\"screen-reader-text\">\n\t\tCe produit a plusieurs variations. Les options peuvent \u00eatre choisies sur la page du produit\t<\/span>\n<\/li>\n<\/ul>\n<\/div><\/div>\n<p class=\"widget-title\">Lire la suite<\/p><a href=\"https:\/\/www.alquera.com\/fr\/sulfato-de-potasio\/\">Sulfate de Potassium<\/a>\n<!-- Page-list plugin v.5.9 wordpress.org\/plugins\/page-list\/ -->\n<ul class=\"page-list siblings-page-list\">\n<li class=\"page_item page-item-5 menu-item\"><a href=\"https:\/\/www.alquera.com\/fr\/sulfato-de-potasio\/usos\/\" class=\"menu-link\">Utilisations du sulfate de potassium<\/a><\/li>\n<li class=\"page_item page-item-9 menu-item\"><a href=\"https:\/\/www.alquera.com\/fr\/sulfato-de-potasio\/fertilizante\/\" class=\"menu-link\">Engrais \u00e0 base de sulfate de potassium<\/a><\/li>\n<li class=\"page_item page-item-7 menu-item\"><a href=\"https:\/\/www.alquera.com\/fr\/sulfato-de-potasio\/acuario\/\" class=\"menu-link\">Sulfate de Potassium Aquarium<\/a><\/li>\n\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>El sulfato de potasio\u00a0 o sulfato pot\u00e1sico es un compuesto muy utilizado como fertilizante de diversos cultivos, ya que es una\u00a0fuente principal de potasio. El potasio es uno de los 12 nutrientes principales que necesitan las plantas para crecer. Sulfato de potasio como fertilizante El potasio es un elemento bastante com\u00fan en la naturaleza. Se [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":32591,"menu_order":2,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-9","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Sulfato de Potasio Fertilizante - Alquera.com<\/title>\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.alquera.com\/fr\/sulfato-de-potasio\/fertilizante\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sulfato de Potasio Fertilizante\" \/>\n<meta property=\"og:description\" content=\"El sulfato de potasio\u00a0 o sulfato pot\u00e1sico es un compuesto muy utilizado como fertilizante de diversos cultivos, ya que es una\u00a0fuente principal de potasio. El potasio es uno de los 12 nutrientes principales que necesitan las plantas para crecer. Sulfato de potasio como fertilizante El potasio es un elemento bastante com\u00fan en la naturaleza. Se [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alquera.com\/fr\/sulfato-de-potasio\/fertilizante\/\" \/>\n<meta property=\"og:site_name\" content=\"Alquera.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/alqueraciencia\" \/>\n<meta property=\"article:modified_time\" content=\"2021-09-12T13:59:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.alquera.com\/wp-content\/uploads\/2020\/12\/falta-sulfato-de-potasio.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.alquera.com\/sulfato-de-potasio\/fertilizante\/\",\"url\":\"https:\/\/www.alquera.com\/sulfato-de-potasio\/fertilizante\/\",\"name\":\"Sulfato de Potasio Fertilizante - Alquera.com\",\"isPartOf\":{\"@id\":\"https:\/\/www.alquera.com\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.alquera.com\/sulfato-de-potasio\/fertilizante\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.alquera.com\/sulfato-de-potasio\/fertilizante\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.alquera.com\/wp-content\/uploads\/2020\/12\/falta-sulfato-de-potasio.jpg\",\"datePublished\":\"2016-06-30T08:28:48+00:00\",\"dateModified\":\"2021-09-12T13:59:59+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.alquera.com\/sulfato-de-potasio\/fertilizante\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.alquera.com\/sulfato-de-potasio\/fertilizante\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.alquera.com\/sulfato-de-potasio\/fertilizante\/#primaryimage\",\"url\":\"https:\/\/www.alquera.com\/wp-content\/uploads\/2020\/12\/falta-sulfato-de-potasio.jpg\",\"contentUrl\":\"https:\/\/www.alquera.com\/wp-content\/uploads\/2020\/12\/falta-sulfato-de-potasio.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.alquera.com\/sulfato-de-potasio\/fertilizante\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Inicio\",\"item\":\"https:\/\/www.alquera.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Sulfato de Potasio\",\"item\":\"https:\/\/www.alquera.com\/sulfato-de-potasio\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Sulfato de Potasio Fertilizante\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.alquera.com\/en\/#website\",\"url\":\"https:\/\/www.alquera.com\/en\/\",\"name\":\"Alquera.com\",\"description\":\"Tienda Online Productos Qu\u00edmicos y Material de Laboratorio\",\"publisher\":{\"@id\":\"https:\/\/www.alquera.com\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.alquera.com\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.alquera.com\/en\/#organization\",\"name\":\"ALQUERA CIENCIA SL\",\"url\":\"https:\/\/www.alquera.com\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.alquera.com\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.alquera.com\/wp-content\/uploads\/2020\/11\/logo_300_ancho.png\",\"contentUrl\":\"https:\/\/www.alquera.com\/wp-content\/uploads\/2020\/11\/logo_300_ancho.png\",\"width\":300,\"height\":86,\"caption\":\"ALQUERA CIENCIA SL\"},\"image\":{\"@id\":\"https:\/\/www.alquera.com\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/alqueraciencia\",\"https:\/\/www.instagram.com\/alquera_ciencia\/\",\"https:\/\/www.youtube.com\/c\/alquera\"]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Engrais \u00e0 base de sulfate de potassium - Alquera.com","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.alquera.com\/fr\/sulfato-de-potasio\/fertilizante\/","og_locale":"fr_FR","og_type":"article","og_title":"Sulfato de Potasio Fertilizante","og_description":"El sulfato de potasio\u00a0 o sulfato pot\u00e1sico es un compuesto muy utilizado como fertilizante de diversos cultivos, ya que es una\u00a0fuente principal de potasio. El potasio es uno de los 12 nutrientes principales que necesitan las plantas para crecer. Sulfato de potasio como fertilizante El potasio es un elemento bastante com\u00fan en la naturaleza. 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