{"id":33927,"date":"2023-06-09T08:00:36","date_gmt":"2023-06-09T06:00:36","guid":{"rendered":"https:\/\/www.asparagusworld.com\/?post_type=news&#038;p=33927"},"modified":"2025-07-08T08:16:40","modified_gmt":"2025-07-08T08:16:40","slug":"the-art-of-covering-crops","status":"publish","type":"news","link":"https:\/\/befve.com\/es\/news\/the-art-of-covering-crops\/","title":{"rendered":"L&#8217;art de couvrir les cultures"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"field_LQ24868017C\">La couverture v\u00e9g\u00e9tale croissante entre les rangs dans les plantations d\u2019asperges est une pratique r\u00e9cente. Elle a d\u00e9but\u00e9 avec les cultures d\u2019asperges vertes pour faciliter le passage des machines de r\u00e9colte et limiter le tassement du sol. Cette technique a \u00e9galement montr\u00e9 d&#8217;autres avantages, comme la protection contre le vent qu\u2019elle procure aux asperges, assurant une r\u00e9colte de meilleure qualit\u00e9 et des turions plus droits. Les nombreux b\u00e9n\u00e9fices agronomiques, thermiques, \u00e9cologiques et environnementaux de la couverture v\u00e9g\u00e9tale ont d\u00e9sormais conduit \u00e0 son utilisation dans les cultures d\u2019asperges blanches dans plusieurs zones de production europ\u00e9ennes.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-33930\"><img decoding=\"async\" src=\"https:\/\/www.asparagusworld.com\/wp-content\/uploads\/2023\/06\/270565_document.jpg\" alt=\"\" class=\"wp-image-33930\"\/><figcaption class=\"wp-element-caption\">La couverture v\u00e9g\u00e9tale am\u00e9liore la portance du sol pour supporter le passage des machines d\u2019assistance \u00e0 la r\u00e9colte, en particulier pendant les p\u00e9riodes pluvieuses.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading field_LQ25227660C\">B\u00e9n\u00e9ficier d\u2019un \u201ceffet brise-vent\u201d<\/h3>\n\n\n\n<p class=\"field_LQ24868017C\">D\u2019un point de vue agronomique, la couverture v\u00e9g\u00e9tale am\u00e9liore la structure du sol gr\u00e2ce au d\u00e9veloppement racinaire des esp\u00e8ces dans diff\u00e9rents horizons, ce qui renforce la capacit\u00e9 du sol \u00e0 retenir l\u2019eau. Elle prot\u00e8ge \u00e9galement contre l\u2019\u00e9rosion. En outre, les esp\u00e8ces \u00e0 racines pivotantes captent les \u00e9l\u00e9ments min\u00e9raux, comme les nitrates, dans les couches profondes du sol et limitent le lessivage, tandis que les l\u00e9gumineuses apportent de l\u2019azote. Le broyage du feuillage et du volume racinaire permet d\u2019augmenter la teneur en humus du sol. L\u2019apport de mati\u00e8re organique am\u00e9liore significativement l\u2019activit\u00e9 microbienne du sol, augmentant ainsi la disponibilit\u00e9 des nutriments. Lorsqu\u2019une couverture v\u00e9g\u00e9tale est maintenue sur une parcelle pendant toute la dur\u00e9e de vie d\u2019une plantation d\u2019asperges, le pourcentage de mati\u00e8re organique dans les inter-rangs est plus \u00e9lev\u00e9, rendant la parcelle plus favorable \u00e0 la replantation, en particulier dans les aspergeraies \u00e0 grands espacements (plus de 3,5 m). Il est pertinent d\u2019envisager une couverture v\u00e9g\u00e9tale permanente afin de tirer parti de ses b\u00e9n\u00e9fices thermiques tout au long du cycle de culture. Au printemps, lorsque la couverture v\u00e9g\u00e9tale se d\u00e9veloppe au-dessus des buttes avant la r\u00e9colte, elle offre un \u00ab effet brise-vent \u00bb qui rend les plastiques moins susceptibles d\u2019\u00eatre emport\u00e9s ou d\u00e9plac\u00e9s. Elle contribue aussi \u00e0 r\u00e9chauffer plus rapidement la butte, celle-ci \u00e9tant moins expos\u00e9e au vent, souvent venu du nord. Un degr\u00e9 suppl\u00e9mentaire au-dessus de 12 \u00b0C \u00e0 la couronne peut g\u00e9n\u00e9rer un gain de 30 kg\/ha r\u00e9colt\u00e9s par jour en d\u00e9but de saison. Une fois broy\u00e9e dans les premiers jours de r\u00e9colte, la couverture v\u00e9g\u00e9tale permet au sol de mieux supporter le passage des engins de r\u00e9colte, surtout en p\u00e9riode pluvieuse.<\/p>\n\n\n\n<h3 class=\"wp-block-heading field_LQ25227660C\">Sem\u00e9e, contr\u00f4l\u00e9e et entretenue<\/h3>\n\n\n\n<p class=\"field_LQ24868017C\">\u00c0 la fin de la r\u00e9colte, de nouvelles plantes se d\u00e9veloppent, cr\u00e9ant des conditions favorables \u00e0 la pr\u00e9sence d\u2019auxiliaires de culture (syrphes, carabes, chrysopes, coccinelles, etc.). Elles limitent aussi le d\u00e9veloppement des adventices dans l\u2019inter-rang. Cela est particuli\u00e8rement utile lorsqu\u2019on cherche \u00e0 r\u00e9duire l\u2019usage d\u2019herbicides ou en agriculture biologique. Une fois broy\u00e9e, la v\u00e9g\u00e9tation peut \u00eatre d\u00e9pos\u00e9e sur le rang de plantation pour servir de paillage naturel, limitant la pousse des herbes. En automne et en hiver, la couverture v\u00e9g\u00e9tale att\u00e9nue aussi les effets des pluies fortes. Toutefois, certains inconv\u00e9nients peuvent appara\u00eetre, comme une a\u00e9ration r\u00e9duite du rang et un risque accru de maladies li\u00e9 \u00e0 une humidit\u00e9 plus \u00e9lev\u00e9e. Par ailleurs, dans certaines situations, elle peut favoriser le d\u00e9veloppement des populations de rongeurs.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-33929\"><img decoding=\"async\" src=\"https:\/\/www.asparagusworld.com\/wp-content\/uploads\/2023\/06\/270567_document.jpg\" alt=\"\" class=\"wp-image-33929\"\/><figcaption class=\"wp-element-caption\">La couverture v\u00e9g\u00e9tale am\u00e9liore la portance du sol pour supporter le passage des machines d\u2019assistance \u00e0 la r\u00e9colte, en particulier pendant les p\u00e9riodes pluvieuses.<\/figcaption><\/figure>\n\n\n\n<p class=\"field_LQ24868017C\">La couverture v\u00e9g\u00e9tale doit \u00eatre sem\u00e9e, contr\u00f4l\u00e9e et entretenue. Elle peut \u00eatre sem\u00e9e \u00e0 la fin de la r\u00e9colte et b\u00e9n\u00e9ficier des pluies. Plus tard, son installation est facilit\u00e9e si la parcelle est irrigu\u00e9e par aspersion. Il est conseill\u00e9 de combiner diff\u00e9rentes familles v\u00e9g\u00e9tales :<\/p>\n\n\n\n<p>gramin\u00e9es : seigle, avoine, ray-grass (fort d\u00e9veloppement racinaire) ;<\/p>\n\n\n\n<p>crucif\u00e8res : radis fourrager, radis chinois, moutarde blanche (racine pivotante) ;<\/p>\n\n\n\n<p>l\u00e9gumineuses : tr\u00e8fle d\u2019Alexandrie, lentille fourrag\u00e8re (fixation de l\u2019azote).<\/p>\n\n\n\n<p class=\"field_LQ24868017C\">La dur\u00e9e n\u00e9cessaire de la couverture v\u00e9g\u00e9tale (permanente ou saisonni\u00e8re) d\u00e9termine aussi le choix des esp\u00e8ces. Il faut donc tenir compte de la sensibilit\u00e9 au gel : l\u2019avoine, le tr\u00e8fle d\u2019Alexandrie et la phac\u00e9lie y sont sensibles, tandis que le ray-grass, le seigle, la lentille et le radis le sont peu. Il convient d\u2019utiliser entre 12 et 15 kg\/ha selon l\u2019\u00e9cartement des rangs et la largeur de l\u2019inter-rang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading field_LQ25227660C\">Am\u00e9liorer l\u2019int\u00e9gration des plastiques<\/h3>\n\n\n\n<p class=\"field_LQ24868017C\">Le maintien d\u2019une couverture v\u00e9g\u00e9tale permanente n\u00e9cessite certaines adaptations, voire des investissements mat\u00e9riels. Des espacements larges permettent l\u2019enherbement des rangs toute l\u2019ann\u00e9e tout en gardant assez de terre pour le buttage. Certains constructeurs de mat\u00e9riel (ex. : Engels) ont \u00e9galement adapt\u00e9 des buttoirs pour pr\u00e9server la couverture v\u00e9g\u00e9tale sur le rang (voir rubrique Mat\u00e9riel). M\u00eame si l\u2019enherbement du rang n\u00e9cessite des passages r\u00e9p\u00e9t\u00e9s de tracteur et de broyeur pour contr\u00f4ler la pousse (tous les 8 \u00e0 10 jours en irrigation par aspersion ou toutes les 3 semaines en goutte-\u00e0-goutte), la consommation de carburant reste bien inf\u00e9rieure \u00e0 celle des outils de travail du sol. Enfin, le \u00ab verdissement \u00bb des rangs d\u2019asperges am\u00e9liore l\u2019int\u00e9gration paysag\u00e8re des parcelles et r\u00e9duit fortement la \u00ab pollution visuelle \u00bb souvent reproch\u00e9e \u00e0 la culture de l\u2019asperge dans certaines r\u00e9gions.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The recent practice of using vegetation covers provides agronomic, thermal, ecological and environmental benefits. But it also requires making the right choice of species to sow and some adaptions to asparagus plantations.<\/p>\n","protected":false},"featured_media":36699,"template":"","meta":{"_acf_changed":false},"news_categories":[53],"class_list":["post-33927","news","type-news","status-publish","has-post-thumbnail","hentry","news_categories-production"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>L&#039;art de couvrir les cultures - Befve &amp; Co<\/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:\/\/befve.com\/es\/news\/the-art-of-covering-crops\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L&#039;art de couvrir les cultures - Befve &amp; Co\" \/>\n<meta property=\"og:description\" content=\"The recent practice of using vegetation covers provides agronomic, thermal, ecological and environmental benefits. 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