{"id":6371,"date":"2023-03-29T09:09:51","date_gmt":"2023-03-29T09:09:51","guid":{"rendered":"https:\/\/www.rabitaagrotextil.com\/filet-anti-grele-indispensable-en-arboriculture-fruitiere\/"},"modified":"2023-03-29T09:09:51","modified_gmt":"2023-03-29T09:09:51","slug":"filet-anti-grele-indispensable-en-arboriculture-fruitiere","status":"publish","type":"post","link":"https:\/\/www.rabitaagrotextil.com\/fr\/filet-anti-grele-indispensable-en-arboriculture-fruitiere\/","title":{"rendered":"Filet anti-gr\u00eale, indispensable en arboriculture fruiti\u00e8re"},"content":{"rendered":"<h1><\/h1>\n<p><strong> <\/strong>Les <a href=\"https:\/\/www.rabitaagrotextil.com\/agricultura\/#m1\">filets anti-gr\u00eale<\/a> sont devenus un produit essentiel pour augmenter les b\u00e9n\u00e9fices dans un monde de plus en plus comp\u00e9titif en mati\u00e8re de culture fruiti\u00e8re.<\/p>\n<p>Le changement climatique entra\u00eene une augmentation des intemp\u00e9ries, notamment des temp\u00eates de gr\u00eale, ce qui accro\u00eet et aggrave les probl\u00e8mes d&rsquo;ensoleillement, d&rsquo;o\u00f9 la n\u00e9cessit\u00e9 d&rsquo;utiliser des filets anti-gr\u00eale afin de pr\u00e9server la qualit\u00e9 du produit.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>  Propri\u00e9t\u00e9s diff\u00e9rentes en fonction de la couleur du filet paragr\u00eale  <\/strong><\/h2>\n<p>&nbsp;<\/p>\n<p>Le<a href=\"https:\/\/es.wikipedia.org\/wiki\/Radiaci%C3%B3n_fotosint%C3%A9ticamente_activa\"> rayonnement photosynth\u00e9tiquement actif<\/a> (PAR) est intercept\u00e9 par les filets anti-gr\u00eale, mais la quantit\u00e9 intercept\u00e9e d\u00e9pend de facteurs tels que le tissage, la couleur et la structure du montage.<\/p>\n<p>Le noir est la couleur qui offre la plus grande protection contre la PAR, pr\u00e9c\u00e9d\u00e9e par les couleurs suivantes dans cet ordre : rouge, vert, gris, verre.<\/p>\n<p>Une autre propri\u00e9t\u00e9 est la temp\u00e9rature de l&rsquo;air. Lorsque des mailles de couleur fonc\u00e9e ou mixtes sont utilis\u00e9es, la temp\u00e9rature de l&rsquo;air diminue en raison de l&rsquo;effet d&rsquo;ombrage. En revanche, lorsque des filets de couleur claire sont utilis\u00e9s, il peut y avoir une augmentation de la temp\u00e9rature dans la partie sup\u00e9rieure de la plantation, en raison de la diminution de la circulation de l&rsquo;air et de la faible diminution du rayonnement produite par ces filets.<\/p>\n<p>&nbsp;<\/p>\n<p>L&rsquo;utilisation de <a href=\"https:\/\/www.rabitaagrotextil.com\/agricultura\/#m1\">filets anti-gr\u00eale<\/a> entra\u00eene \u00e9galement une augmentation de l&rsquo;humidit\u00e9 relative, principalement due \u00e0 une diminution du rayonnement et de la circulation de l&rsquo;air. Des augmentations allant de 5 \u00e0 55% ont \u00e9t\u00e9 observ\u00e9es, les diff\u00e9rences maximales se produisant pendant les heures o\u00f9 le rayonnement et la temp\u00e9rature sont les plus \u00e9lev\u00e9s.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>  Effets sur la qualit\u00e9 des fruits<\/strong><\/h2>\n<p><strong> <\/strong>Les <a href=\"https:\/\/www.rabitaagrotextil.com\/agricultura\/#m1\">filets anti-gr\u00eale<\/a> sont une technologie efficace pour r\u00e9duire les dommages caus\u00e9s par le soleil et les dommages m\u00e9caniques tels que le vent et la gr\u00eale. Le pourcentage de lumi\u00e8re solaire observ\u00e9 sous les mailles est li\u00e9 au degr\u00e9 d&rsquo;ombrage de chaque maille. On estime que les dommages caus\u00e9s par le soleil sont r\u00e9duits de 40 \u00e0 65 % par rapport \u00e0 l&rsquo;absence de filet et que les dommages graves (br\u00fblures) sont r\u00e9duits de 60 \u00e0 100 %.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>  Quelle maille dois-je choisir ?<\/strong><\/h2>\n<p><strong> <\/strong><\/p>\n<p>Pour le choix de la maille dans notre r\u00e9gion, et en tenant compte du fait que les mailles noires sont les plus durables, deux aspects fondamentaux doivent \u00eatre pris en consid\u00e9ration : la sensibilit\u00e9 \u00e0 la lumi\u00e8re du soleil et la facilit\u00e9 de coloration ou la couleur du mat\u00e9riel v\u00e9g\u00e9tal \u00e0 prot\u00e9ger.<\/p>\n<p>Par cons\u00e9quent, les filets anti-gr\u00eale sombres, qui r\u00e9duisent excessivement les niveaux de radiation dans les vari\u00e9t\u00e9s dont la g\u00e9n\u00e9tique limite la formation de la couleur, affecteront n\u00e9gativement ce param\u00e8tre, alors qu&rsquo;ils pourraient \u00eatre utilis\u00e9s dans les vari\u00e9t\u00e9s \u00e0 coloration facile ou \u00e0 coloration verte. En revanche, les mailles claires (verre, blanc), qui augmentent le rayonnement diffus, favorisent le d\u00e9veloppement de la coloration et seraient recommand\u00e9es pour les vari\u00e9t\u00e9s ou les situations qui ne sont pas favorables au d\u00e9veloppement de la coloration.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les filets anti-gr\u00eale sont devenus un produit essentiel pour augmenter les b\u00e9n\u00e9fices dans un monde de plus en plus comp\u00e9titif en mati\u00e8re de culture fruiti\u00e8re. Le changement climatique entra\u00eene une augmentation des intemp\u00e9ries, notamment des temp\u00eates de gr\u00eale, ce qui accro\u00eet et aggrave les probl\u00e8mes d&rsquo;ensoleillement, d&rsquo;o\u00f9 la n\u00e9cessit\u00e9 d&rsquo;utiliser des filets anti-gr\u00eale afin de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6299,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[64],"tags":[],"class_list":["post-6371","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-techniques"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Filet anti-gr\u00eale, indispensable en arboriculture fruiti\u00e8re - 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