{"id":15,"date":"2011-10-17T20:44:43","date_gmt":"2011-10-17T18:44:43","guid":{"rendered":"http:\/\/hydropassion.com\/webZine\/?page_id=15"},"modified":"2024-01-06T23:48:02","modified_gmt":"2024-01-06T22:48:02","slug":"hydroculture-culture-plante-interieur-hydropassion","status":"publish","type":"page","link":"https:\/\/hydropassion.com\/webZine\/hydroculture-culture-plante-interieur-hydropassion\/","title":{"rendered":"Hydroculture"},"content":{"rendered":"

Sans terre et sans reproche !<\/h2>\n

\"\"<\/a><\/p>\n

La culture sans terre sur billes d’argile poss\u00e8de de nombreux atouts de s\u00e9duction, \u00e0 commencer par sa propret\u00e9, sa l\u00e9g\u00e8ret\u00e9 et son faible encombrement. De plus, contrairement \u00e0 une id\u00e9e re\u00e7ue, c’est on ne peut plus facile et \u00a0\u00bb \u00e7a marche \u00a0\u00bb \u00e0 merveille, m\u00eame en ext\u00e9rieur !<\/p>\n

L’hydroculture consiste tout simplement \u00e0 cultiver des plantes\u2026 sans terre. Serait-elle la panac\u00e9e de la terrasse et du balcon ? L’ affirmation serait sans doute un peu os\u00e9e : les panac\u00e9es n’existent pas plus que la pierre philosophale, au jardin ou ailleurs ! Cette absence de terre, c’est\u2026<\/p>\n

C’est le point essentiel, ainsi que celui qui choque le plus de prime abord. En effet, quand on veut cr\u00e9er un jardin sur une terrasse, un balcon ou un appui de fen\u00eatre, c’est bien souvent pour disposer d’un petit coin de nature \u00e0 port\u00e9e de main\u2026 Or, les pots, bacs ou jardini\u00e8res, vid\u00e9s de leur terre et remplis de billes d’argile ne ressemblent pas vraiment \u00e0 quelque chose de \u00a0\u00bb naturel \u00ab\u00a0, de prime abord.<\/p>\n

En sommes-nous bien s\u00fbrs ? En effet, les v\u00e9ritables exigences d’un v\u00e9g\u00e9tal sont au nombre de cinq ; toujours les m\u00eames : le carbone, la lumi\u00e8re, les \u00e9l\u00e9ments nutritifs, l’eau et la stabilit\u00e9.<\/p>\n

Le carbone n\u00e9cessaire \u00e0 construire sa structure est apport\u00e9 par le gaz carbonique de l’air (dioxyde de carbone ou CO2 pour les chimistes). Il l’absorbe et le dissocie en rejetant de l’oxyg\u00e8ne gr\u00e2ce \u00e0 l’assimilation chlorophyllienne.
\nLa lumi\u00e8re permet de r\u00e9aliser la r\u00e9action chimique pr\u00e9c\u00e9dente.
\nLes \u00e9l\u00e9ments nutritifs, min\u00e9raux et organiques, sont puis\u00e9s dans le sol par les racines (parfois aussi par la structure a\u00e9rienne).
\nL’eau v\u00e9hicule et distribue par la s\u00e8ve les \u00e9l\u00e9ments pr\u00e9c\u00e9dents dans l’ensemble de son organisme.
\nLe sol enfin procure un solide ancrage et une stabilit\u00e9 indispensable.<\/p>\n

L’hydroculture apporte des r\u00e9ponses simples \u00e0 ces cinq exigences, compte tenu du fait que les \u00e9l\u00e9ments nutritifs ne repr\u00e9sentent, en masse et en volume, qu’une infime partie d’un sol classique. L’industrie sait parfaitement les reconstituer sous forme liquide ou de poudres qu’il suffit d’\u00e9pandre, deux \u00e0 quatre fois par an, \u00e0 la surface des bacs ou d’ajouter \u00e0 l’eau d’arrosage. Quant \u00e0 l’enracinement, s’il est parfois (pas toujours) un peu plus long \u00e0 obtenir que dans la \u00a0\u00bb terre \u00ab\u00a0, il se r\u00e9v\u00e8le ensuite tout aussi ferme et d\u00e9finitif, quand racines et radicelles ont \u00e9troitement li\u00e9 et compact\u00e9 les billes entre elles, sauf les deux ou trois \u00e9paisseurs du dessus qui ne jouent qu’un r\u00f4le protecteur et restent libres.<\/p>\n

Finalement, il n’est peut-\u00eatre pas plus anti-naturel pour une plante de s’\u00e9panouir en hydroculture que pour un \u00eatre humain de pr\u00e9f\u00e9rer dormir sous un toit dans un lit que sur un amas de feuilles mortes sous un arbre !<\/p>\n","protected":false},"excerpt":{"rendered":"

Sans terre et sans reproche ! La culture sans terre sur billes d’argile poss\u00e8de de nombreux atouts de s\u00e9duction, \u00e0 commencer par sa propret\u00e9, sa l\u00e9g\u00e8ret\u00e9 et son faible encombrement. De plus, contrairement \u00e0 une id\u00e9e re\u00e7ue, c’est on ne peut plus facile et \u00a0\u00bb \u00e7a marche \u00a0\u00bb \u00e0 merveille, m\u00eame en ext\u00e9rieur ! L’hydroculture […]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-15","page","type-page","status-publish","hentry"],"yoast_head":"\nHydroculture - WebZine Hydropassion<\/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:\/\/hydropassion.com\/webZine\/hydroculture-culture-plante-interieur-hydropassion\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydroculture - WebZine Hydropassion\" \/>\n<meta property=\"og:description\" content=\"Sans terre et sans reproche ! La culture sans terre sur billes d’argile poss\u00e8de de nombreux atouts de s\u00e9duction, \u00e0 commencer par sa propret\u00e9, sa l\u00e9g\u00e8ret\u00e9 et son faible encombrement. De plus, contrairement \u00e0 une id\u00e9e re\u00e7ue, c’est on ne peut plus facile et \u00a0\u00bb \u00e7a marche \u00a0\u00bb \u00e0 merveille, m\u00eame en ext\u00e9rieur ! 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