
{"id":24245,"date":"2025-08-21T17:35:08","date_gmt":"2025-08-21T17:35:08","guid":{"rendered":"https:\/\/prograin.ca\/ca\/?p=24245"},"modified":"2025-08-21T17:35:08","modified_gmt":"2025-08-21T17:35:08","slug":"lutilisation-des-herbicides-dans-la-prerecolte-du-soya","status":"publish","type":"post","link":"https:\/\/prograin.ca\/ca\/fr\/2025\/08\/21\/lutilisation-des-herbicides-dans-la-prerecolte-du-soya\/","title":{"rendered":"L\u2019utilisation des herbicides dans la pr\u00e9r\u00e9colte du soya"},"content":{"rendered":"\n<p>L\u2019utilisation d\u2019un herbicide en pr\u00e9r\u00e9colte peut contribuer \u00e0 favoriser la r\u00e9colte. Il peut aussi aider \u00e0 rencontrer les standards d\u2019un soya de grade alimentaire&nbsp;n<sup>o<\/sup>1 lorsque les champs pr\u00e9sentent une certaine densit\u00e9 de mauvaises herbes \u00e0 risque de tacher le soya et d\u2019affecter ainsi son classement pour le march\u00e9 de l\u2019alimentation humaine.<\/p>\n\n\n\n<p>L\u2019efficacit\u00e9 de cette solution passe toutefois par (1) le choix du bon herbicide en fonction de l\u2019esp\u00e8ce de mauvaises herbes vis\u00e9e et (2) le moment o\u00f9 le produit est appliqu\u00e9.<\/p>\n\n\n\n<h2>L\u2019effet des herbicides dans la pr\u00e9r\u00e9colte du soya<\/h2>\n\n\n\n<p>L\u2019utilisation des herbicides dans la <a href=\"https:\/\/prograin.ca\/ca\/fr\/2020\/08\/27\/pre-recolte-verification-et-preparation-des-silos\/\" target=\"_blank\" rel=\"noreferrer noopener\">pr\u00e9r\u00e9colte<\/a> du soya contribue \u00e0 acc\u00e9l\u00e9rer le moment de la r\u00e9colte \u00e0 raison de 3 \u00e0 10&nbsp;jours, car ces produits tuent les tissus verts des plants de soya (feuilles, tiges et gousses) et des mauvaises herbes sans dess\u00e9cher les f\u00e8ves.<\/p>\n\n\n\n<p>Cette technique permet g\u00e9n\u00e9ralement d\u2019augmenter la qualit\u00e9 de la r\u00e9colte puisqu\u2019elle (1) rend plus pr\u00e9visible le moment de la r\u00e9colte apr\u00e8s la pulv\u00e9risation et (2) ass\u00e8che les mauvaises herbes, ce qui facilite le travail de la moissonneuse-batteuse et le nettoyage des champs.<\/p>\n\n\n\n<h2>Les herbicides \u00e0 utiliser dans la pr\u00e9r\u00e9colte du soya<\/h2>\n\n\n\n<p>Le glyphosate est l\u2019herbicide de choix si les mauvaises herbes vivaces sont vis\u00e9es. L\u2019application du glyphosate \u00e0 l\u2019automne favorise le d\u00e9placement de l\u2019ingr\u00e9dient actif vers la racine. Cela permet de lutter plus facilement contre certaines mauvaises herbes, dont le chardon des champs, le laiteron des champs et le liseron des champs, pour n\u2019en nommer que quelques-unes.<\/p>\n\n\n\n<p>Si ce sont des mauvaises herbes annuelles qui sont vis\u00e9es, l\u2019utilisation du glyphosate est \u00e9galement recommand\u00e9e. Or, puisque sa rapidit\u00e9 d\u2019action est moindre que d\u2019autres produits, il est plut\u00f4t sugg\u00e9r\u00e9 d\u2019utiliser l\u2019un ou l\u2019autre des 3&nbsp;autres herbicides&nbsp;\u00e0 action rapide suivants&nbsp;:<\/p>\n\n\n\n<ol><li>La Carfentrazone (Aim EC)<\/li><li>Le Safluf\u00e9nacil (Eragon)<\/li><li>Le Diquat (Reglone)<\/li><\/ol>\n\n\n\n<p>Un conseil&nbsp;: ne m\u00e9langez pas le glyphosate avec un herbicide \u00e0 action rapide si les mauvaises herbes vivaces sont la cible.&nbsp;<\/p>\n\n\n\n<h2>Le moment d\u2019application des herbicides dans la pr\u00e9r\u00e9colte du soya<\/h2>\n\n\n\n<p>Une fois que la f\u00e8ve de soya s\u2019est d\u00e9tach\u00e9e de la gousse, la f\u00e8ve est consid\u00e9r\u00e9e comme mature et le champ peut \u00eatre pulv\u00e9ris\u00e9. Pour valider cet aspect, il suffit de pr\u00e9lever au hasard des gousses dans le tiers sup\u00e9rieur des plants de soya et d\u2019ouvrir la gousse en 2. Si la peau se d\u00e9tache du grain, c\u2019est pr\u00eat !<\/p>\n\n\n\n<p>Voici 4&nbsp;autres points qui indiquent que le moment d\u2019application est atteint&nbsp;:<\/p>\n\n\n\n<ul><li>80-90&nbsp;% des feuilles sont tomb\u00e9es&nbsp;<\/li><li>Tiges vertes \u00e0 brunes<\/li><li>Gousses jaune p\u00e2le \u00e0 brunes<\/li><li>Taux d\u2019humidit\u00e9 de la f\u00e8ve d\u2019environ 30&nbsp;% ou moins<\/li><\/ul>\n\n\n\n<p><strong>Tableau&nbsp;1&nbsp;: Programme de br\u00fblage en pr\u00e9r\u00e9colte<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><\/td><td><strong>Glyphosate (540&nbsp;g\/L)&nbsp;<\/strong><\/td><td><strong>Reglone&nbsp;240 Diquat&nbsp;240&nbsp;<\/strong><\/td><td><strong>Eragon LQ&nbsp;<\/strong><\/td><td><strong>Eragon LQ + Glyphosate&nbsp;<\/strong><\/td><td>AIM EC&nbsp;<\/td><\/tr><tr><td><strong>Dose&nbsp;<\/strong><\/td><td>0,67 L\/acre&nbsp;<\/td><td>0,5 \u00e0 0,7&nbsp;L\/acre&nbsp;<\/td><td>30 \u00e0 60&nbsp;ml\/acre&nbsp;<\/td><td>30 \u00e0 60&nbsp;ml\/acre +<br>0,67&nbsp;L\/acre&nbsp;<\/td><td>47&nbsp;ml\/ac&nbsp;<\/td><\/tr><tr><td><strong>Volume d\u2019eau&nbsp;<\/strong><\/td><td>10 \u00e0 12&nbsp;gal\/acre&nbsp;<\/td><td>20 \u00e0 55&nbsp;gal\/acre&nbsp;<\/td><td>20 gal\/acre&nbsp;<\/td><td>10-20 gal\/acre&nbsp;<\/td><td>20 gal\/acre&nbsp;<\/td><\/tr><tr><td><strong>Adjuvant&nbsp;<\/strong><\/td><td>Aucun (si le bon volume d\u2019eau est utilis\u00e9)<\/td><td>Agral<br>1 L\/1000 L d\u2019eau&nbsp;<\/td><td>Merge 400&nbsp;ml\/acre&nbsp;<\/td><td>Merge 400&nbsp;ml\/acre&nbsp;<\/td><td>Surfactant non ionique \u00e0 0,25&nbsp;% v\/v&nbsp;<\/td><\/tr><tr><td><strong>Effet sur les mauvaises herbes&nbsp;<\/strong><\/td><td>Lent<br>10 \u00e0 15&nbsp;jours&nbsp;<\/td><td>Rapide 4 \u00e0 7&nbsp;jours&nbsp;<\/td><td>Interm\u00e9diaire&nbsp;7 \u00e0 10&nbsp;jours&nbsp;<\/td><td>Interm\u00e9diaire&nbsp;7 \u00e0 10&nbsp;jours&nbsp;<\/td><td>Interm\u00e9diaire&nbsp;7 \u00e0 10&nbsp;jours&nbsp;<\/td><\/tr><tr><td><strong>D\u00e9lai avant r\u00e9colte n\u00e9cessaire&nbsp;<\/strong><\/td><td>7&nbsp;jours&nbsp;<\/td><td>Aucun&nbsp;<\/td><td>3&nbsp;jours&nbsp;<\/td><td>7&nbsp;jours&nbsp;<\/td><td>3&nbsp;jours&nbsp;<\/td><\/tr><tr><td><strong>Stade d\u2019application&nbsp;<\/strong><\/td><td>80-90&nbsp;% d\u00e9foli\u00e9 Gousses brun\u00e2tres&nbsp;<\/td><td>90&nbsp;% d\u00e9foli\u00e9<br>80&nbsp;% gousses jaunes&nbsp;<\/td><td>90&nbsp;% gousses jaunes&nbsp;<\/td><td>90&nbsp;% gousses jaunes&nbsp;<\/td><td>90&nbsp;% gousses jaunes&nbsp;<\/td><\/tr><tr><td><strong>Utilisation sur la production de semences&nbsp;<\/strong><\/td><td>Non&nbsp;<\/td><td>Oui&nbsp;<\/td><td>Oui&nbsp;<\/td><td>Non&nbsp;<\/td><td>Oui&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Note&nbsp;: Le producteur doit toujours utiliser des produits homologu\u00e9s pour le br\u00fblage en pr\u00e9r\u00e9colte.<\/p>\n\n\n\n<h2>Questions \u00e0 se poser pour choisir le bon herbicide<\/h2>\n\n\n\n<p>Voici un \u00e9chantillon de questions qui guident le choix du bon herbicide dans la pr\u00e9r\u00e9colte du soya&nbsp;:<\/p>\n\n\n\n<ul><li>Quel est le type de mauvaises herbes vis\u00e9&nbsp;: vivaces ou annuelles<em> <\/em>(\u00e0 feuilles larges ou gramin\u00e9es)?<\/li><li>Vise-t-on une production commerciale ou non? Il peut y avoir des restrictions sur les herbicides de pr\u00e9r\u00e9colte \u00e0 utiliser s\u2019il est question de <a href=\"https:\/\/prograin.ca\/ca\/fr\/soyas\/\" target=\"_blank\" rel=\"noreferrer noopener\">soya de qualit\u00e9 alimentaire<\/a> ou de production de semences.&nbsp;<\/li><li>Quel est le d\u00e9lai d\u00e9sir\u00e9 avant la r\u00e9colte (\u00e0 \u00e9valuer en fonction de la r\u00e9alit\u00e9 du producteur)?<\/li><li>Y a-t-il pr\u00e9sence de pr\u00eale ou d\u2019autres mauvaises herbes coriaces?<\/li><\/ul>\n\n\n\n<p>Voil\u00e0 ce qui conclut notre topo. Sur ce, nous vous souhaitons une bonne r\u00e9colte !<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019utilisation d\u2019un herbicide en pr\u00e9r\u00e9colte peut contribuer \u00e0 favoriser la r\u00e9colte. Il peut aussi aider \u00e0 rencontrer les standards d\u2019un soya de grade alimentaire&nbsp;no1 lorsque les champs pr\u00e9sentent une certaine densit\u00e9 de mauvaises herbes \u00e0 risque de tacher le soya et d\u2019affecter ainsi son classement pour le march\u00e9 de l\u2019alimentation humaine. L\u2019efficacit\u00e9 de cette solution [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":24242,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":""},"categories":[272],"tags":[],"author_meta":{"display_name":"devmxo","author_link":"https:\/\/prograin.ca\/ca\/author\/devmxo\/"},"featured_img":"https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png-300x200.jpeg","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.11 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>L\u2019utilisation des herbicides dans la pr\u00e9r\u00e9colte du soya - Prograin - Canada<\/title>\n<meta name=\"description\" content=\"Nous vous r\u00e9v\u00e9lons quels herbicides utiliser dans la pr\u00e9r\u00e9colte du soya et vous en apprenons plus sur le sujet.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/prograin.ca\/ca\/fr\/2025\/08\/21\/lutilisation-des-herbicides-dans-la-prerecolte-du-soya\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u2019utilisation des herbicides dans la pr\u00e9r\u00e9colte du soya - 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Il peut aussi aider \u00e0 rencontrer les standards d\u2019un soya de grade alimentaire&nbsp;no1 lorsque les champs pr\u00e9sentent une certaine densit\u00e9 de mauvaises herbes \u00e0 risque de tacher le soya et d\u2019affecter ainsi son classement pour le march\u00e9 de l\u2019alimentation humaine. L\u2019efficacit\u00e9 de cette solution passe toutefois par (1) le choix du bon herbicide en fonction de l\u2019esp\u00e8ce de mauvaises herbes vis\u00e9e et (2) le moment o\u00f9 le produit est appliqu\u00e9. L\u2019effet des herbicides dans la pr\u00e9r\u00e9colte du soya L\u2019utilisation des herbicides dans la pr\u00e9r\u00e9colte du soya contribue \u00e0 acc\u00e9l\u00e9rer&hellip;<\/p>\n","category_list":"<a href=\"https:\/\/prograin.ca\/ca\/fr\/category\/non-classe-fr\/\" rel=\"category tag\">Non class\u00e9<\/a>","author_info":{"name":"devmxo","url":"https:\/\/prograin.ca\/ca\/author\/devmxo\/"},"comments_num":"0 comments","featured_image_urls_v2":{"full":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png.jpeg",2000,1335,false],"thumbnail":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png-150x150.jpeg",150,150,true],"medium":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png-300x200.jpeg",300,200,true],"medium_large":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png-768x513.jpeg",768,513,true],"large":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png.jpeg",2000,1335,false],"1536x1536":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png-1536x1025.jpeg",1536,1025,true],"2048x2048":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png.jpeg",2000,1335,false],"menu-24x24":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png-24x16.jpeg",24,16,true],"menu-36x36":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png-36x24.jpeg",36,24,true],"menu-48x48":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2021\/08\/utilisation-herbicides-prerecolte-soya.png-48x32.jpeg",48,32,true]},"post_excerpt_stackable_v2":"<p>L\u2019utilisation d\u2019un herbicide en pr\u00e9r\u00e9colte peut contribuer \u00e0 favoriser la r\u00e9colte. Il peut aussi aider \u00e0 rencontrer les standards d\u2019un soya de grade alimentaire&nbsp;no1 lorsque les champs pr\u00e9sentent une certaine densit\u00e9 de mauvaises herbes \u00e0 risque de tacher le soya et d\u2019affecter ainsi son classement pour le march\u00e9 de l\u2019alimentation humaine. L\u2019efficacit\u00e9 de cette solution passe toutefois par (1) le choix du bon herbicide en fonction de l\u2019esp\u00e8ce de mauvaises herbes vis\u00e9e et (2) le moment o\u00f9 le produit est appliqu\u00e9. L\u2019effet des herbicides dans la pr\u00e9r\u00e9colte du soya L\u2019utilisation des herbicides dans la pr\u00e9r\u00e9colte du soya contribue \u00e0 acc\u00e9l\u00e9rer&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/prograin.ca\/ca\/fr\/category\/non-classe-fr\/\" rel=\"category tag\">Non class\u00e9<\/a>","author_info_v2":{"name":"devmxo","url":"https:\/\/prograin.ca\/ca\/author\/devmxo\/"},"comments_num_v2":"0 comments","coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/prograin.ca\/ca\/fr\/category\/non-classe-fr\/\" class=\"advgb-post-tax-term\">Non class\u00e9<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Non class\u00e9<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Posted 8 mois ago","modified":"Updated 8 mois ago"},"absolute_dates":{"created":"Posted on 21 ao\u00fbt 2025","modified":"Updated on 21 ao\u00fbt 2025"},"absolute_dates_time":{"created":"Posted on 21 ao\u00fbt 2025 17 h 35 min","modified":"Updated on 21 ao\u00fbt 2025 17 h 35 min"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/posts\/24245"}],"collection":[{"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/comments?post=24245"}],"version-history":[{"count":14,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/posts\/24245\/revisions"}],"predecessor-version":[{"id":27660,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/posts\/24245\/revisions\/27660"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/media\/24242"}],"wp:attachment":[{"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/media?parent=24245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/categories?post=24245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/tags?post=24245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}