{"id":23381,"date":"2025-07-17T15:58:10","date_gmt":"2025-07-17T15:58:10","guid":{"rendered":"https:\/\/prograin.ca\/ca\/?p=23381"},"modified":"2025-08-13T13:34:27","modified_gmt":"2025-08-13T13:34:27","slug":"nutrient-deficiencies-in-soybeans","status":"publish","type":"post","link":"https:\/\/prograin.ca\/ca\/fr\/2025\/07\/17\/nutrient-deficiencies-in-soybeans\/","title":{"rendered":"Les carences en nutriments dans le soya"},"content":{"rendered":"\n
\u00c0 la mi-saison, vous remarquez peut-\u00eatre un jaunissement des tissus foliaires dans vos champs de soya. Savez-vous ce qui se passe? Plusieurs facteurs peuvent jouer un r\u00f4le, comme une infestation du n\u00e9matode \u00e0 kyste du soya, mais g\u00e9n\u00e9ralement, ce ph\u00e9nom\u00e8ne est caus\u00e9 par diff\u00e9rentes carences ou d\u00e9ficiences en nutriments. <\/p>\n\n\n\n
D\u2019abord, rappelons-nous que lorsque le plant de soya atteint le stade des premiers grains, il a besoin d\u2019une grande quantit\u00e9 de nutriments-cl\u00e9s pour continuer son d\u00e9veloppement. Toute condition qui restreint la croissance des racines, comme un sol trop sec, le compactage de celui-ci ou la pr\u00e9sence d\u2019insectes, peut entrainer une carence en nutriments. <\/p>\n\n\n\n
<\/p>\n\n\n\n
Dressons maintenant la liste des carences en nutriments les plus courantes au pays : <\/p>\n\n\n\n
Azote (N) <\/h2>\n\n\n\n
Comme le grain de soya est riche en prot\u00e9ines, le besoin en azote est particuli\u00e8rement important au stade des premiers grains. Lorsqu\u2019il y a carence en N, on remarque une nodulation d\u00e9ficiente des racines et un plant rabougri de couleur vert clair.<\/p>\n\n\n\n
Phosphore (P) <\/h2>\n\n\n\n
Si les feuilles tournent au vert fonc\u00e9 qui tire sur le bleu, qu\u2019il y a r\u00e9duction globale de la croissance et chlorose intraveineuse \u00e0 partir de la base de la feuille, on note une carence en phosphore. <\/p>\n\n\n
\nSource : University of Nebraska et Mississippi State University<\/figcaption><\/figure><\/div>\n\n\n
Potassium (K) <\/h2>\n\n\n\n
Les feuilles inf\u00e9rieures jaunissent et rougissent alors que celles \u00e0 la base du plant restent vertes. L\u2019aspect des feuilles plus \u00e2g\u00e9es est irr\u00e9gulier et la croissance est ralentie. Ces manifestations sont la r\u00e9ponse d\u2019une carence en potassium. <\/p>\n\n\n
\nSource : University of Nebraska et Mississippi State University<\/figcaption><\/figure><\/div>\n\n\n
Magn\u00e9sium (Mg) <\/h2>\n\n\n\n
Les marges des feuilles les plus \u00e2g\u00e9es se courbent et vous notez une chlorose intraveineuse. Le niveau bas de magn\u00e9sium est en cause !\u00a0 <\/p>\n\n\n
\nSource : University of Nebraska et Mississippi State University<\/figcaption><\/figure><\/div>\n\n\n
Soufre (S) <\/h2>\n\n\n\n
Quand il y a d\u00e9ficience en soufre, les nouvelles feuilles sont petites et jaune-vert p\u00e2le, alors que les tiges sont minces, dures et allong\u00e9es. <\/p>\n\n\n
\nSource : University of Nebraska et Mississippi State University<\/figcaption><\/figure><\/div>\n\n\n
Fer (Fe) <\/h2>\n\n\n\n
Une carence en fer se manifeste d\u2019abord en chlorose intraveineuse, puis par un rabougrissement du plant. Les veines peuvent \u00e9galement devenir chlorotiques. <\/p>\n\n\n
\nSource : University of Nebraska et Mississippi State University<\/figcaption><\/figure><\/div>\n\n\n
Mangan\u00e8se (Mn) <\/h2>\n\n\n\n
Retard de croissance, taches n\u00e9crotiques brunes et chute pr\u00e9coce des feuilles suivent la chlorose intraveineuse et le changement de teinte de la feuille qui passe au vert p\u00e2le. \u00c0 noter qu\u2019une d\u00e9ficience pr\u00e9coce en mangan\u00e8se ressemble \u00e0 une carence en fer. <\/p>\n\n\n
\nSource : University of Nebraska et Mississippi State University<\/figcaption><\/figure><\/div>\n\n\n
Syndrome de la mort subite (SMS) <\/h2>\n\n\n\n
On inclut la maladie du syndrome de la mort subite dans les d\u00e9ficiences en nutriments, car ses sympt\u00f4mes sont tr\u00e8s semblables. Apr\u00e8s le stade de croissance R2, la chlorose et la n\u00e9crose des feuilles intraveineuses se d\u00e9veloppent. Les feuilles brunissent rapidement et tombent alors que le cortex de la tige inf\u00e9rieure se retrouve avec des stries brunes ou grises. L\u2019infection se produit pendant les stades v\u00e9g\u00e9tatifs de la croissance, mais les sympt\u00f4mes foliaires apparaissent g\u00e9n\u00e9ralement pendant la floraison et le d\u00e9veloppement pr\u00e9coce des gousses. <\/p>\n\n\n
\nSource : University of Nebraska et Mississippi State University<\/figcaption><\/figure><\/div>\n\n\n
Les traitements diff\u00e8rent selon la carence. Vous pouvez vous informer aupr\u00e8s d\u2019un agronome exp\u00e9riment\u00e9 chez Prograin. Contactez votre repr\u00e9sentant ! <\/p>\n","protected":false},"excerpt":{"rendered":"
\u00c0 la mi-saison, vous remarquez peut-\u00eatre un jaunissement des tissus foliaires dans vos champs de soya. Savez-vous ce qui se passe? Plusieurs facteurs peuvent jouer un r\u00f4le, comme une infestation du n\u00e9matode \u00e0 kyste du soya, mais g\u00e9n\u00e9ralement, ce ph\u00e9nom\u00e8ne est caus\u00e9 par diff\u00e9rentes carences ou d\u00e9ficiences en nutriments. D\u2019abord, rappelons-nous que lorsque le plant […]<\/p>\n","protected":false},"author":7,"featured_media":26206,"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\/2020\/07\/carence-300x200.png","yoast_head":"\n
Les carences en nutriments dans le soya - Prograin - Canada<\/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:\/\/prograin.ca\/ca\/fr\/2025\/07\/17\/nutrient-deficiencies-in-soybeans\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les carences en nutriments dans le soya - Prograin - Canada\" \/>\n<meta property=\"og:description\" content=\"\u00c0 la mi-saison, vous remarquez peut-\u00eatre un jaunissement des tissus foliaires dans vos champs de soya. Savez-vous ce qui se passe? Plusieurs facteurs peuvent jouer un r\u00f4le, comme une infestation du n\u00e9matode \u00e0 kyste du soya, mais g\u00e9n\u00e9ralement, ce ph\u00e9nom\u00e8ne est caus\u00e9 par diff\u00e9rentes carences ou d\u00e9ficiences en nutriments. 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Savez-vous ce qui se passe? Plusieurs facteurs peuvent jouer un r\u00f4le, comme une infestation du n\u00e9matode \u00e0 kyste du soya, mais g\u00e9n\u00e9ralement, ce ph\u00e9nom\u00e8ne est caus\u00e9 par diff\u00e9rentes carences ou d\u00e9ficiences en nutriments. D\u2019abord, rappelons-nous que lorsque le plant de soya atteint le stade des premiers grains, il a besoin d\u2019une grande quantit\u00e9 de nutriments-cl\u00e9s pour continuer son d\u00e9veloppement. Toute condition qui restreint la croissance des racines, comme un sol trop sec, le compactage de celui-ci ou la pr\u00e9sence d\u2019insectes, peut entrainer une carence…<\/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\/2020\/07\/carence.png",1253,835,false],"thumbnail":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2020\/07\/carence-150x150.png",150,150,true],"medium":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2020\/07\/carence-300x200.png",300,200,true],"medium_large":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2020\/07\/carence-768x512.png",768,512,true],"large":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2020\/07\/carence.png",1253,835,false],"1536x1536":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2020\/07\/carence.png",1253,835,false],"2048x2048":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2020\/07\/carence.png",1253,835,false],"menu-24x24":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2020\/07\/carence-24x16.png",24,16,true],"menu-36x36":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2020\/07\/carence-36x24.png",36,24,true],"menu-48x48":["https:\/\/prograin.ca\/app\/uploads\/sites\/3\/2020\/07\/carence-48x32.png",48,32,true]},"post_excerpt_stackable_v2":"<p>\u00c0 la mi-saison, vous remarquez peut-\u00eatre un jaunissement des tissus foliaires dans vos champs de soya. Savez-vous ce qui se passe? Plusieurs facteurs peuvent jouer un r\u00f4le, comme une infestation du n\u00e9matode \u00e0 kyste du soya, mais g\u00e9n\u00e9ralement, ce ph\u00e9nom\u00e8ne est caus\u00e9 par diff\u00e9rentes carences ou d\u00e9ficiences en nutriments. D\u2019abord, rappelons-nous que lorsque le plant de soya atteint le stade des premiers grains, il a besoin d\u2019une grande quantit\u00e9 de nutriments-cl\u00e9s pour continuer son d\u00e9veloppement. Toute condition qui restreint la croissance des racines, comme un sol trop sec, le compactage de celui-ci ou la pr\u00e9sence d\u2019insectes, peut entrainer une carence…<\/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 9 mois ago","modified":"Updated 8 mois ago"},"absolute_dates":{"created":"Posted on 17 juillet 2025","modified":"Updated on 13 ao\u00fbt 2025"},"absolute_dates_time":{"created":"Posted on 17 juillet 2025 15 h 58 min","modified":"Updated on 13 ao\u00fbt 2025 13 h 34 min"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/posts\/23381"}],"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=23381"}],"version-history":[{"count":17,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/posts\/23381\/revisions"}],"predecessor-version":[{"id":27662,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/posts\/23381\/revisions\/27662"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/media\/26206"}],"wp:attachment":[{"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/media?parent=23381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/categories?post=23381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prograin.ca\/ca\/wp-json\/wp\/v2\/tags?post=23381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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