{"id":12946,"date":"2021-10-28T11:46:54","date_gmt":"2021-10-28T09:46:54","guid":{"rendered":"https:\/\/trivalis.fr\/?p=12946"},"modified":"2021-10-28T11:46:54","modified_gmt":"2021-10-28T09:46:54","slug":"essai-longue-duree-sur-le-compost-comme-si-vous-y-etiez","status":"publish","type":"post","link":"https:\/\/trivalis.fr\/essai-longue-duree-sur-le-compost-comme-si-vous-y-etiez\/","title":{"rendered":"Essai longue dur\u00e9e sur le compost, comme si vous y \u00e9tiez"},"content":{"rendered":"<p><strong>En 2014, un essai longue dur\u00e9e a d\u00e9but\u00e9 chez un agriculteur, dans le Sud Vend\u00e9e, pour mesurer la r\u00e9action des sols int\u00e9grant du compost issu du traitement m\u00e9cano-biologique. Six ans apr\u00e8s, les mesures de fin d\u2019essai ont \u00e9t\u00e9 r\u00e9alis\u00e9es.<\/strong><\/p>\n<p><!--more-->L\u2019essai longue dur\u00e9e est inscrit dans la convention sign\u00e9e en 2009 entre le Conseil D\u00e9partemental, la Chambre d\u2019Agriculture et Trivalis dans le cadre de la valorisation agricole du compost provenant des usines de traitement m\u00e9cano-biologique. La Chambre d\u2019Agriculture a la charge de cet essai scientifique dont l\u2019objectif est de mesurer les effets sanitaires et agronomiques d\u2019un apport de compost de Trivalis en comparaison \u00e0 du fumier de bovins.<\/p>\n<p>Depuis septembre 2014, sur le territoire de la commune d\u2019Oulmes, l\u2019essai est en place sur 30 micro-parcelles. En mai dernier, les premi\u00e8res mesures de fin d\u2019essai, portant sur les effets physiques sur le sol, d\u2019un apport r\u00e9p\u00e9t\u00e9 de mati\u00e8re organique, ont \u00e9t\u00e9 men\u00e9es.&nbsp;<\/p>\n<p>Diff\u00e9rents tests ont \u00e9t\u00e9 pratiqu\u00e9s afin d\u2019\u00e9valuer la fertilit\u00e9 physique du sol&nbsp;:<\/p>\n<div class=\"panel-group\" id=\"collapse_d519-d003\"><br class=\"nc\"\/><div class=\"panel panel-default\">    <div class=\"panel-heading\" role=\"tab\" id=\"heading_citem_ef2b-4588\">        <h4 class=\"panel-title\"><a class=\"accordion-toggle collapsed\" data-toggle=\"collapse\" aria-controls=\"heading_citem_ef2b-4588\" data-parent=\"#collapse_d519-d003\" href=\"#citem_ef2b-4588\">Le test d'infiltrom\u00e9trie Beerken<\/a>        <\/h4>    <\/div>    <div id=\"citem_ef2b-4588\" class=\"panel-collapse collapse \" role=\"tabpanel\" aria-labelledby=\"heading_citem_ef2b-4588\">        <div class=\"panel-body\"><br class=\"nc\"\/><strong>Le test d\u2019infiltrom\u00e9trie Beerkan<\/strong> consiste \u00e0 mesurer la vitesse d\u2019infiltration de l\u2019eau dans le sol. Un volume d\u2019eau correspondant \u00e0 10 mm, est vers\u00e9 dans un cylindre enfonc\u00e9 \u00e0 la surface du sol. Le temps n\u00e9cessaire \u00e0 l\u2019infiltration compl\u00e8te du volume d\u2019eau vers\u00e9 est not\u00e9. L\u2019op\u00e9ration est r\u00e9p\u00e9t\u00e9e jusqu\u2019\u00e0 ce que le temps d\u2019infiltration se stabilise. Plus l\u2019eau s\u2019infiltre rapidement, meilleure est la structure du sol&nbsp;et inversement.\n<p><!-- default-view.php -->\n<div\n\tclass=\"ngg-galleryoverview default-view \n\t ngg-ajax-pagination-none\t\"\n\tid=\"ngg-gallery-790173240537312ada7d799ad12531a3-1\">\n\n\t\t<!-- Thumbnails -->\n\t\t\t\t<div id=\"ngg-image-0\" class=\"ngg-gallery-thumbnail-box \n\t\t\t\t\t\t\t\t\t\t\t\" \n\t\t\t>\n\t\t\t\t\t\t<div class=\"ngg-gallery-thumbnail\">\n\t\t\t<a href=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0794.jpg\"\n\t\t\t\ttitle=\"\"\n\t\t\t\tdata-src=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0794.jpg\"\n\t\t\t\tdata-thumbnail=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0794.jpg\"\n\t\t\t\tdata-image-id=\"180\"\n\t\t\t\tdata-title=\"Test d\u2019infiltrom\u00e9trie Beerkan 1\"\n\t\t\t\tdata-description=\"\"\n\t\t\t\tdata-image-slug=\"actu-031_img_0794\"\n\t\t\t\tclass=\"ngg-fancybox\" rel=\"790173240537312ada7d799ad12531a3\">\n\t\t\t\t<img\n\t\t\t\t\ttitle=\"Test d\u2019infiltrom\u00e9trie Beerkan 1\"\n\t\t\t\t\talt=\"Test d\u2019infiltrom\u00e9trie Beerkan 1\"\n\t\t\t\t\tsrc=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0794.jpg\"\n\t\t\t\t\twidth=\"240\"\n\t\t\t\t\theight=\"160\"\n\t\t\t\t\tstyle=\"max-width:100%;\"\n\t\t\t\t\/>\n\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div> \n\t\t\t\n\t\t\t\t<div id=\"ngg-image-1\" class=\"ngg-gallery-thumbnail-box \n\t\t\t\t\t\t\t\t\t\t\t\" \n\t\t\t>\n\t\t\t\t\t\t<div class=\"ngg-gallery-thumbnail\">\n\t\t\t<a href=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0798.jpg\"\n\t\t\t\ttitle=\"\"\n\t\t\t\tdata-src=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0798.jpg\"\n\t\t\t\tdata-thumbnail=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0798.jpg\"\n\t\t\t\tdata-image-id=\"179\"\n\t\t\t\tdata-title=\"Test d\u2019infiltrom\u00e9trie Beerkan 2\"\n\t\t\t\tdata-description=\"\"\n\t\t\t\tdata-image-slug=\"actu-031_img_0798\"\n\t\t\t\tclass=\"ngg-fancybox\" rel=\"790173240537312ada7d799ad12531a3\">\n\t\t\t\t<img\n\t\t\t\t\ttitle=\"Test d\u2019infiltrom\u00e9trie Beerkan 2\"\n\t\t\t\t\talt=\"Test d\u2019infiltrom\u00e9trie Beerkan 2\"\n\t\t\t\t\tsrc=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0798.jpg\"\n\t\t\t\t\twidth=\"240\"\n\t\t\t\t\theight=\"160\"\n\t\t\t\t\tstyle=\"max-width:100%;\"\n\t\t\t\t\/>\n\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div> \n\t\t\t\n\t\t\t\t<div id=\"ngg-image-2\" class=\"ngg-gallery-thumbnail-box \n\t\t\t\t\t\t\t\t\t\t\t\" \n\t\t\t>\n\t\t\t\t\t\t<div class=\"ngg-gallery-thumbnail\">\n\t\t\t<a href=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0814.jpg\"\n\t\t\t\ttitle=\"\"\n\t\t\t\tdata-src=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0814.jpg\"\n\t\t\t\tdata-thumbnail=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0814.jpg\"\n\t\t\t\tdata-image-id=\"178\"\n\t\t\t\tdata-title=\"Test d\u2019infiltrom\u00e9trie Beerkan 3\"\n\t\t\t\tdata-description=\"\"\n\t\t\t\tdata-image-slug=\"actu-031_img_0814\"\n\t\t\t\tclass=\"ngg-fancybox\" rel=\"790173240537312ada7d799ad12531a3\">\n\t\t\t\t<img\n\t\t\t\t\ttitle=\"Test d\u2019infiltrom\u00e9trie Beerkan 3\"\n\t\t\t\t\talt=\"Test d\u2019infiltrom\u00e9trie Beerkan 3\"\n\t\t\t\t\tsrc=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0814.jpg\"\n\t\t\t\t\twidth=\"240\"\n\t\t\t\t\theight=\"160\"\n\t\t\t\t\tstyle=\"max-width:100%;\"\n\t\t\t\t\/>\n\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div> \n\t\t\t\n\t\n\t<br style=\"clear: both\" \/>\n\n\t\t<div class=\"slideshowlink\">\n\t\t<a href='https:\/\/trivalis.fr\/essai-longue-duree-sur-le-compost-comme-si-vous-y-etiez\/nggallery\/slideshow'>[Montrer sous forme de diaporama]<\/a>\n\t\t\n\t<\/div>\n\t\n\t\t<!-- Pagination -->\n\t\t<div class='ngg-clear'><\/div>\t<\/div>\n<br class=\"nc\"\/>        <\/p><\/div>    <\/div><\/div><br class=\"nc\"\/><div class=\"panel panel-default\">    <div class=\"panel-heading\" role=\"tab\" id=\"heading_citem_ae40-b07c\">        <h4 class=\"panel-title\"><a class=\"accordion-toggle collapsed\" data-toggle=\"collapse\" aria-controls=\"heading_citem_ae40-b07c\" data-parent=\"#collapse_d519-d003\" href=\"#citem_ae40-b07c\">Le test b\u00eache<\/a>        <\/h4>    <\/div>    <div id=\"citem_ae40-b07c\" class=\"panel-collapse collapse \" role=\"tabpanel\" aria-labelledby=\"heading_citem_ae40-b07c\">        <div class=\"panel-body\"><br class=\"nc\"\/><strong>Le test b\u00eache<\/strong> permet d\u2019\u00e9tablir un diagnostic de la structure du sol en observant les mottes pr\u00e9sentes et leur mode d\u2019assemblage. Une b\u00each\u00e9e de 20 cm de c\u00f4t\u00e9, sur 25 cm de profondeur, est pr\u00e9lev\u00e9e. Elle est \u00e9tudi\u00e9e en bloc entier puis est fractur\u00e9e sur une b\u00e2che. Les mottes de terre et la terre fine obtenues sont ensuite class\u00e9es selon leur porosit\u00e9 (mottes poreuses, mottes tass\u00e9es et mottes tass\u00e9es en cours de r\u00e9g\u00e9n\u00e9ration). Cette op\u00e9ration permet de donner une note globale de la structure du sol. L\u2019observation du nombre de vers de terre est \u00e9galement r\u00e9alis\u00e9.\n<p><!-- default-view.php -->\n<div\n\tclass=\"ngg-galleryoverview default-view \n\t ngg-ajax-pagination-none\t\"\n\tid=\"ngg-gallery-a19869fa66b46d66c2bee202672fd84c-1\">\n\n\t\t<!-- Thumbnails -->\n\t\t\t\t<div id=\"ngg-image-0\" class=\"ngg-gallery-thumbnail-box \n\t\t\t\t\t\t\t\t\t\t\t\" \n\t\t\t>\n\t\t\t\t\t\t<div class=\"ngg-gallery-thumbnail\">\n\t\t\t<a href=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0830.jpg\"\n\t\t\t\ttitle=\"\"\n\t\t\t\tdata-src=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0830.jpg\"\n\t\t\t\tdata-thumbnail=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0830.jpg\"\n\t\t\t\tdata-image-id=\"184\"\n\t\t\t\tdata-title=\"Actu-031_IMG_0830\"\n\t\t\t\tdata-description=\"\"\n\t\t\t\tdata-image-slug=\"actu-031_img_0830\"\n\t\t\t\tclass=\"ngg-fancybox\" rel=\"a19869fa66b46d66c2bee202672fd84c\">\n\t\t\t\t<img\n\t\t\t\t\ttitle=\"Actu-031_IMG_0830\"\n\t\t\t\t\talt=\"Actu-031_IMG_0830\"\n\t\t\t\t\tsrc=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0830.jpg\"\n\t\t\t\t\twidth=\"240\"\n\t\t\t\t\theight=\"160\"\n\t\t\t\t\tstyle=\"max-width:100%;\"\n\t\t\t\t\/>\n\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div> \n\t\t\t\n\t\t\t\t<div id=\"ngg-image-1\" class=\"ngg-gallery-thumbnail-box \n\t\t\t\t\t\t\t\t\t\t\t\" \n\t\t\t>\n\t\t\t\t\t\t<div class=\"ngg-gallery-thumbnail\">\n\t\t\t<a href=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IIMG_0841.jpg\"\n\t\t\t\ttitle=\"\"\n\t\t\t\tdata-src=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IIMG_0841.jpg\"\n\t\t\t\tdata-thumbnail=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IIMG_0841.jpg\"\n\t\t\t\tdata-image-id=\"182\"\n\t\t\t\tdata-title=\"Actu-031_IIMG_0841\"\n\t\t\t\tdata-description=\"\"\n\t\t\t\tdata-image-slug=\"actu-031_iimg_0841\"\n\t\t\t\tclass=\"ngg-fancybox\" rel=\"a19869fa66b46d66c2bee202672fd84c\">\n\t\t\t\t<img\n\t\t\t\t\ttitle=\"Actu-031_IIMG_0841\"\n\t\t\t\t\talt=\"Actu-031_IIMG_0841\"\n\t\t\t\t\tsrc=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IIMG_0841.jpg\"\n\t\t\t\t\twidth=\"240\"\n\t\t\t\t\theight=\"160\"\n\t\t\t\t\tstyle=\"max-width:100%;\"\n\t\t\t\t\/>\n\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div> \n\t\t\t\n\t\t\t\t<div id=\"ngg-image-2\" class=\"ngg-gallery-thumbnail-box \n\t\t\t\t\t\t\t\t\t\t\t\" \n\t\t\t>\n\t\t\t\t\t\t<div class=\"ngg-gallery-thumbnail\">\n\t\t\t<a href=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0842.jpg\"\n\t\t\t\ttitle=\"\"\n\t\t\t\tdata-src=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0842.jpg\"\n\t\t\t\tdata-thumbnail=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0842.jpg\"\n\t\t\t\tdata-image-id=\"183\"\n\t\t\t\tdata-title=\"Actu-031_IMG_0842\"\n\t\t\t\tdata-description=\"\"\n\t\t\t\tdata-image-slug=\"actu-031_img_0842\"\n\t\t\t\tclass=\"ngg-fancybox\" rel=\"a19869fa66b46d66c2bee202672fd84c\">\n\t\t\t\t<img\n\t\t\t\t\ttitle=\"Actu-031_IMG_0842\"\n\t\t\t\t\talt=\"Actu-031_IMG_0842\"\n\t\t\t\t\tsrc=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0842.jpg\"\n\t\t\t\t\twidth=\"240\"\n\t\t\t\t\theight=\"160\"\n\t\t\t\t\tstyle=\"max-width:100%;\"\n\t\t\t\t\/>\n\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div> \n\t\t\t\n\t\n\t<br style=\"clear: both\" \/>\n\n\t\t<div class=\"slideshowlink\">\n\t\t<a href='https:\/\/trivalis.fr\/essai-longue-duree-sur-le-compost-comme-si-vous-y-etiez\/nggallery\/slideshow'>[Montrer sous forme de diaporama]<\/a>\n\t\t\n\t<\/div>\n\t\n\t\t<!-- Pagination -->\n\t\t<div class='ngg-clear'><\/div>\t<\/div>\n<br class=\"nc\"\/>        <\/p><\/div>    <\/div><\/div><br class=\"nc\"\/><div class=\"panel panel-default\">    <div class=\"panel-heading\" role=\"tab\" id=\"heading_citem_5b73-4682\">        <h4 class=\"panel-title\"><a class=\"accordion-toggle collapsed\" data-toggle=\"collapse\" aria-controls=\"heading_citem_5b73-4682\" data-parent=\"#collapse_d519-d003\" href=\"#citem_5b73-4682\">Le Slake Test<\/a>        <\/h4>    <\/div>    <div id=\"citem_5b73-4682\" class=\"panel-collapse collapse \" role=\"tabpanel\" aria-labelledby=\"heading_citem_5b73-4682\">        <div class=\"panel-body\"><br class=\"nc\"\/><strong>Le Slake Test<\/strong>, ou test de s\u00e9dimentation, consiste \u00e0 \u00e9valuer la stabilit\u00e9 structurale et la coh\u00e9sion des agr\u00e9gats d\u2019un sol, pour connaitre la r\u00e9sistance du sol \u00e0 l\u2019\u00e9rosion. Des pr\u00e9l\u00e8vements de mottes de terre ont \u00e9t\u00e9 r\u00e9alis\u00e9s sur les 30 micros-parcelles. En laboratoire, ces mottes ont \u00e9t\u00e9 plac\u00e9es dans des passoires et plong\u00e9es dans l\u2019eau. Ensuite, la r\u00e9sistance des mottes \u00e0 la d\u00e9sagr\u00e9gation par l\u2019eau et l\u2019aspect de l\u2019eau sont \u00e9valu\u00e9es apr\u00e8s diff\u00e9rents lapses de temps.\n<p><!-- default-view.php -->\n<div\n\tclass=\"ngg-galleryoverview default-view \n\t ngg-ajax-pagination-none\t\"\n\tid=\"ngg-gallery-0b6d54e171c5ea43f970c39db5262cf5-1\">\n\n\t\t<!-- Thumbnails -->\n\t\t\t\t<div id=\"ngg-image-0\" class=\"ngg-gallery-thumbnail-box \n\t\t\t\t\t\t\t\t\t\t\t\" \n\t\t\t>\n\t\t\t\t\t\t<div class=\"ngg-gallery-thumbnail\">\n\t\t\t<a href=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_20200806_131551.jpg\"\n\t\t\t\ttitle=\"\"\n\t\t\t\tdata-src=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_20200806_131551.jpg\"\n\t\t\t\tdata-thumbnail=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_20200806_131551.jpg\"\n\t\t\t\tdata-image-id=\"181\"\n\t\t\t\tdata-title=\"Actu-031_IMG_20200806_131551\"\n\t\t\t\tdata-description=\"\"\n\t\t\t\tdata-image-slug=\"actu-031_img_20200806_131551\"\n\t\t\t\tclass=\"ngg-fancybox\" rel=\"0b6d54e171c5ea43f970c39db5262cf5\">\n\t\t\t\t<img\n\t\t\t\t\ttitle=\"Actu-031_IMG_20200806_131551\"\n\t\t\t\t\talt=\"Actu-031_IMG_20200806_131551\"\n\t\t\t\t\tsrc=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_20200806_131551.jpg\"\n\t\t\t\t\twidth=\"240\"\n\t\t\t\t\theight=\"160\"\n\t\t\t\t\tstyle=\"max-width:100%;\"\n\t\t\t\t\/>\n\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div> \n\t\t\t\n\t\n\t<br style=\"clear: both\" \/>\n\n\t\t<div class=\"slideshowlink\">\n\t\t<a href='https:\/\/trivalis.fr\/essai-longue-duree-sur-le-compost-comme-si-vous-y-etiez\/nggallery\/slideshow'>[Montrer sous forme de diaporama]<\/a>\n\t\t\n\t<\/div>\n\t\n\t\t<!-- Pagination -->\n\t\t<div class='ngg-clear'><\/div>\t<\/div>\n<br class=\"nc\"\/>        <\/p><\/div>    <\/div><\/div><br class=\"nc\"\/><div class=\"panel panel-default\">    <div class=\"panel-heading\" role=\"tab\" id=\"heading_citem_553d-f689\">        <h4 class=\"panel-title\"><a class=\"accordion-toggle collapsed\" data-toggle=\"collapse\" aria-controls=\"heading_citem_553d-f689\" data-parent=\"#collapse_d519-d003\" href=\"#citem_553d-f689\">Le test au p\u00e9n\u00e9trom\u00e8tre<\/a>        <\/h4>    <\/div>    <div id=\"citem_553d-f689\" class=\"panel-collapse collapse \" role=\"tabpanel\" aria-labelledby=\"heading_citem_553d-f689\">        <div class=\"panel-body\"><br class=\"nc\"\/><strong>Le test au p\u00e9n\u00e9trom\u00e8tre<\/strong> permet de se faire une premi\u00e8re id\u00e9e de la compaction du sol en rep\u00e9rant la r\u00e9sistance \u00e0 la p\u00e9n\u00e9tration du sol et en mesurant les profondeurs. Pour cela, il faut exercer une pression constante sur le p\u00e9n\u00e9trom\u00e8tre pour l\u2019enfoncer et rep\u00e9rer les profondeurs auxquelles des r\u00e9sistances s\u2019exercent. Ce test est compl\u00e9mentaire au test b\u00eache qui ne se limite qu\u2019aux 25 premiers cm du sol.\n<p><!-- default-view.php -->\n<div\n\tclass=\"ngg-galleryoverview default-view \n\t ngg-ajax-pagination-none\t\"\n\tid=\"ngg-gallery-cdeaac2884c1815181beb250f155723f-1\">\n\n\t\t<!-- Thumbnails -->\n\t\t\t\t<div id=\"ngg-image-0\" class=\"ngg-gallery-thumbnail-box \n\t\t\t\t\t\t\t\t\t\t\t\" \n\t\t\t>\n\t\t\t\t\t\t<div class=\"ngg-gallery-thumbnail\">\n\t\t\t<a href=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0863.jpg\"\n\t\t\t\ttitle=\"\"\n\t\t\t\tdata-src=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/Actu-031_IMG_0863.jpg\"\n\t\t\t\tdata-thumbnail=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0863.jpg\"\n\t\t\t\tdata-image-id=\"185\"\n\t\t\t\tdata-title=\"Actu-031_IMG_0863\"\n\t\t\t\tdata-description=\"\"\n\t\t\t\tdata-image-slug=\"actu-031_img_0863\"\n\t\t\t\tclass=\"ngg-fancybox\" rel=\"cdeaac2884c1815181beb250f155723f\">\n\t\t\t\t<img\n\t\t\t\t\ttitle=\"Actu-031_IMG_0863\"\n\t\t\t\t\talt=\"Actu-031_IMG_0863\"\n\t\t\t\t\tsrc=\"https:\/\/trivalis.fr\/wp-content\/uploads\/sites\/1\/nggallery\/essai-longue-duree-compost\/thumbs\/thumbs_Actu-031_IMG_0863.jpg\"\n\t\t\t\t\twidth=\"240\"\n\t\t\t\t\theight=\"160\"\n\t\t\t\t\tstyle=\"max-width:100%;\"\n\t\t\t\t\/>\n\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div> \n\t\t\t\n\t\n\t<br style=\"clear: both\" \/>\n\n\t\t<div class=\"slideshowlink\">\n\t\t<a href='https:\/\/trivalis.fr\/essai-longue-duree-sur-le-compost-comme-si-vous-y-etiez\/nggallery\/slideshow'>[Montrer sous forme de diaporama]<\/a>\n\t\t\n\t<\/div>\n\t\n\t\t<!-- Pagination -->\n\t\t<div class='ngg-clear'><\/div>\t<\/div>\n<br class=\"nc\"\/>        <\/p><\/div>    <\/div><\/div><br class=\"nc\"\/><\/div>\n<p>Au vu des r\u00e9sultats de ces diff\u00e9rents tests, une r\u00e9p\u00e9tition d\u2019apport de mati\u00e8re organique semble am\u00e9liorer les param\u00e8tres observ\u00e9s. Le compost et le fumier ont jou\u00e9 un r\u00f4le structurant, favorisant la fertilit\u00e9 du sol. Des analyses chimiques ont aussi \u00e9t\u00e9 r\u00e9alis\u00e9es&nbsp;afin de valider la bonne ad\u00e9quation avec la protection des sols et des cultures. Les r\u00e9sultats et interpr\u00e9tations compl\u00e8tes seront pr\u00e9sent\u00e9es au syndicat d\u00e9partemental fin 2022.<\/p>\n<p><em>Essai pilot\u00e9 par J\u00e9r\u00e9my BERTHOMIER, conseiller d\u2019entreprise agricole et agronomie \u00e0 la Chambre d\u2019Agriculture et Arvalis, organisme de recherche appliqu\u00e9e.<\/em><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>En 2014, un essai longue dur\u00e9e a d\u00e9but\u00e9 chez un agriculteur, dans le Sud Vend\u00e9e, pour mesurer la r\u00e9action des sols int\u00e9grant du compost issu&hellip; <a class=\"continue\" href=\"https:\/\/trivalis.fr\/essai-longue-duree-sur-le-compost-comme-si-vous-y-etiez\/\">Lire la suite<span> Essai longue dur\u00e9e sur le compost, comme si vous y \u00e9tiez<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":12949,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[379],"tags":[],"commune":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.9 - 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