{"id":1450,"date":"2022-05-25T18:31:43","date_gmt":"2022-05-25T15:31:43","guid":{"rendered":"https:\/\/wonder-corporation.com\/foliar-fertilization-of-sunflower\/"},"modified":"2025-07-14T18:23:22","modified_gmt":"2025-07-14T15:23:22","slug":"foliar-fertilization-of-sunflower","status":"publish","type":"post","link":"https:\/\/wonder-corporation.com\/fr\/foliar-fertilization-of-sunflower\/","title":{"rendered":"Alimentation foliaire du tournesol"},"content":{"rendered":"<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-9845\" src=\"https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sonishnyk-franuzkij-v-seredynu-1024x683.png\" alt=\"Fertilisation foliaire du tournesol\" width=\"599\" height=\"399\" srcset=\"https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sonishnyk-franuzkij-v-seredynu-1024x683.png 1024w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sonishnyk-franuzkij-v-seredynu-300x200.png 300w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sonishnyk-franuzkij-v-seredynu-768x512.png 768w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sonishnyk-franuzkij-v-seredynu-624x416.png 624w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sonishnyk-franuzkij-v-seredynu.png 1104w\" sizes=\"auto, (max-width: 599px) 100vw, 599px\" \/>La culture du tournesol est l&rsquo;un des domaines les plus rentables de la production agricole. C&rsquo;est l&rsquo;une des principales cultures d&rsquo;Ukraine, qui vous permet d&rsquo;obtenir environ 750 kg d&rsquo;huile sur 1 hectare de semis. En 2021, un record de 6,5 millions d&rsquo;hectares a \u00e9t\u00e9 r\u00e9serv\u00e9 au tournesol. La r\u00e9colte brute totale \u00e9tait de 16,3 millions de tonnes avec un rendement moyen de 2,5 tonnes\/ha. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Gr\u00e2ce \u00e0 un syst\u00e8me racinaire puissant qui p\u00e9n\u00e8tre dans le sol \u00e0 une profondeur de 3 \u00e0 4 m et dans le sens horizontal &#8211; \u00e0 0,8 \u00e0 1,2 m, les plants de tournesol sont capables d&rsquo;absorber l&rsquo;humidit\u00e9 et les nutriments des couches profondes du sol. Pour la formation d&rsquo;1 tonne de graines (avec la quantit\u00e9 correspondante de sous-produits), cette culture n\u00e9cessite une quantit\u00e9 importante de nutriments : 40-55 kg d&rsquo;azote, 15-25 kg de phosphore, 100-150 kg de potassium. Pour cette raison, de nombreux agriculteurs pensent que le tournesol est une culture qui \u00e9puise consid\u00e9rablement le sol. Mais en m\u00eame temps, peu de gens pr\u00eatent attention au retour des nutriments avec les r\u00e9sidus v\u00e9g\u00e9taux par rapport \u00e0 leur \u00e9limination \u00e9conomique, qui dans le tournesol est de : N &#8211; 74 %, P2O5 &#8211; 54 %, K2O &#8211; 94 %, alors que, par exemple, dans colza &#8211; 60, 36, 71; ma\u00efs \u2013 51, 34, 98\u00a0; soja &#8211; 27, 28, 28; \u00e9pis de c\u00e9r\u00e9ales &#8211; 24-32, 17-18, 68-72, respectivement.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-1204 \" src=\"https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflower-3564207_960_720.jpg\" alt=\"\" width=\"509\" height=\"339\" srcset=\"https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflower-3564207_960_720.jpg 960w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflower-3564207_960_720-300x200.jpg 300w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflower-3564207_960_720-768x511.jpg 768w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflower-3564207_960_720-624x415.jpg 624w\" sizes=\"auto, (max-width: 509px) 100vw, 509px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Les plants de tournesol assimilent la plus grande quantit\u00e9 d&rsquo;azote dans la premi\u00e8re moiti\u00e9 de la saison de croissance. En particulier, \u00e0 partir de la phase de 3-4 feuilles et avant le d\u00e9but de la floraison, la culture assimile environ 70-80% d&rsquo;azote du besoin total. Lors de la planification de la nutrition azot\u00e9e des cultures, il convient de pr\u00eater attention au fait que la perte de rendement peut \u00eatre caus\u00e9e \u00e0 la fois par une carence en azote et par son exc\u00e8s. En l&rsquo;absence de cet \u00e9l\u00e9ment, les plantes forment des paniers sous-d\u00e9velopp\u00e9s, et avec son exc\u00e8s, il y a une croissance excessive de la masse v\u00e9g\u00e9tative, ce qui entra\u00eenera \u00e0 l&rsquo;avenir une ponte massive de cultures. De plus, avec une nutrition excessive en azote, la teneur en prot\u00e9ines des graines augmente, mais sa caract\u00e9ristique la plus importante &#8211; l&rsquo;onctuosit\u00e9 &#8211; au contraire, diminue. Le phosphore est extr\u00eamement important pour la formation et le remplissage complet des graines. De plus, la nutrition en phosphore ne doit pas \u00eatre n\u00e9glig\u00e9e dans les premiers stades de d\u00e9veloppement, car cet \u00e9l\u00e9ment est extr\u00eamement important pour la formation \u00e0 part enti\u00e8re du syst\u00e8me racinaire, ce qui \u00e0 l&rsquo;avenir affectera positivement la r\u00e9sistance \u00e0 la s\u00e9cheresse des plantes. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">De plus, l&rsquo;apport de phosphore aux cultures joue un r\u00f4le important dans la formation des organes g\u00e9nitaux et l&rsquo;augmentation de la teneur en huile des graines. Le niveau le plus \u00e9lev\u00e9 d&rsquo;absorption de potassium est observ\u00e9 pendant la p\u00e9riode de formation du panier et de floraison. Il est difficile de surestimer le r\u00f4le du potassium dans la formation de la culture de tournesol, car cet \u00e9l\u00e9ment affecte directement l&rsquo;\u00e9change d&rsquo;hydrocarbures et le passage du processus de photosynth\u00e8se. N&rsquo;oubliez pas non plus le r\u00f4le du potassium dans la formation de l&rsquo;immunit\u00e9 des plantes. En g\u00e9n\u00e9ral, le tournesol est une \u00ab\u00a0plante potassique\u00a0\u00bb typique, dont il faut tenir compte lors de la construction d&rsquo;un syst\u00e8me d&rsquo;alimentation \u00e9lectrique. Parmi les m\u00e9so\u00e9l\u00e9ments, le magn\u00e9sium et le soufre sont extr\u00eamement importants pour le tournesol, de sorte que l&rsquo;application de sulfate de magn\u00e9sium lors de la fertilisation foliaire n&rsquo;est pas seulement souhaitable, mais une mesure obligatoire. La carence de ces \u00e9l\u00e9ments affectera n\u00e9gativement l&rsquo;absorption du NPK, les processus de photosynth\u00e8se, la synth\u00e8se des acides amin\u00e9s, des prot\u00e9ines, ainsi que le pourcentage d&rsquo;onctuosit\u00e9 des graines. Si nous parlons d&rsquo;oligo-\u00e9l\u00e9ments, le bore, le zinc et le mangan\u00e8se sont extr\u00eamement importants pour le tournesol. Le bore a un effet direct sur le d\u00e9veloppement des points de croissance, les processus de floraison et de pollinisation. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">La carence en bore, qui survient imm\u00e9diatement avant la floraison, entra\u00eene la st\u00e9rilit\u00e9 du pollen, ce qui emp\u00eache la pollinisation normale des fleurs, ce qui provoque du charbon et, par cons\u00e9quent, une perte de r\u00e9colte. \u00c0 son tour, le zinc affecte l&rsquo;assimilation des nutriments, leur absorption par le syst\u00e8me racinaire des plantes, augmente la r\u00e9sistance \u00e0 la s\u00e9cheresse et \u00e0 la chaleur de la culture et augmente \u00e9galement son immunit\u00e9. Avec un manque de zinc, les plants de tournesol accusent un retard de croissance, tombent malades et sont incapables de produire une r\u00e9colte, et avec une carence importante, ils meurent. La p\u00e9riode critique de la carence en zinc est la floraison. Avec une carence en mangan\u00e8se, le d\u00e9veloppement des plantes est inhib\u00e9, cet \u00e9l\u00e9ment a donc un impact s\u00e9rieux sur le rendement du tournesol. Aussi, le manque de mangan\u00e8se r\u00e9duit la r\u00e9sistance au gel de la culture et sa r\u00e9sistance aux maladies. La fragilit\u00e9 des feuilles endommag\u00e9es augmente \u00e9galement. Le syst\u00e8me d&rsquo;alimentation foliaire foliaire du tournesol est con\u00e7u pour \u00e9liminer la carence en nutriments dans les \u00e9tapes critiques de l&rsquo;organogen\u00e8se, parmi lesquelles on distingue les phases 4-6 et 8-10 feuilles.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1202 size-full aligncenter\" src=\"https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflowers-4339580_960_720.jpg\" alt=\"\" width=\"960\" height=\"640\" srcset=\"https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflowers-4339580_960_720.jpg 960w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflowers-4339580_960_720-300x200.jpg 300w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflowers-4339580_960_720-768x512.jpg 768w, https:\/\/wonder-corporation.com\/wp-content\/uploads\/2022\/05\/sunflowers-4339580_960_720-624x416.jpg 624w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Dans la premi\u00e8re des phases nomm\u00e9es, les plants de tournesol commencent \u00e0 poser le panier. Avec une alimentation d\u00e9s\u00e9quilibr\u00e9e et sous l&rsquo;influence de facteurs de stress, le panier aura un nombre de fleurs inf\u00e9rieur \u00e0 ce qui est n\u00e9cessaire pour r\u00e9v\u00e9ler pleinement le potentiel de l&rsquo;hybride ou de la vari\u00e9t\u00e9. De plus, les plantes qui ne sont pas pourvues d&rsquo;oligo-\u00e9l\u00e9ments en quantit\u00e9 suffisante et sous une forme accessible ne sont pas capables de former des graines \u00e0 forte teneur en huile et masse. Pour la fertilisation des cultures de tournesol en phase 4-6 feuilles, nous recommandons le m\u00e9lange en cuve suivant\u00a0: <\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Ur\u00e9e &#8211; 7 kg\/ha<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Sulfate de magn\u00e9sium Wonder Leaf MgS 16-32 \u2013 5-10 kg\/ha ou Wonder Leaf MgS 25-50 \u2013 3-4 kg\/ha<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Engrais complexe hydrosoluble Wonder Leaf Blue &#8211; 2-3 kg\/ha<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Wonder Leaf Mono \u00c2 11 \u2013 1 l\/ha. Wonder Leaf Wonder Microo \u2013 2-3 l\/ha. <\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">L&rsquo;alimentation suivante est effectu\u00e9e dans la phase de 8 \u00e0 10 feuilles de la culture. Le but de ce traitement est de stimuler la ponte et la formation de paniers, d&rsquo;influencer la teneur en huile des graines et le rendement. Le m\u00e9lange en r\u00e9servoir recommand\u00e9 pour l&rsquo;alimentation des tournesols dans la phase 8-10 feuilles comprend : <\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Ur\u00e9e &#8211; 4 kg\/ha<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Sulfate de magn\u00e9sium Wonder Leaf MgS 16-32 \u2013 5-10 kg\/ha ou Wonder Leaf MgS 25-50 \u2013 3-4 kg\/ha<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Engrais complexe soluble dans l&rsquo;eau Wonder Leaf Red &#8211; 2-3 kg\/ha<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Wonder Leaf Mono \u00c2 11 \u2013 1 l\/ha. Wonder Leaf Wonder Micro &#8211; 2-3 l\/ha. <\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Pour minimiser les effets du stress herbicide et les effets n\u00e9gatifs des facteurs environnementaux d\u00e9favorables, nous recommandons d&rsquo;ajouter Wonder Leaf Amino 43 &#8211; 0,5-1 l\/ha au m\u00e9lange en r\u00e9servoir. En raison de la teneur \u00e9lev\u00e9e en acides amin\u00e9s d&rsquo;origine v\u00e9g\u00e9tale (43%), le m\u00e9dicament favorise la r\u00e9cup\u00e9ration rapide de l&rsquo;organisme v\u00e9g\u00e9tal et augmente \u00e9galement la capacit\u00e9 d&rsquo;absorption des cultures, ce qui leur permet d&rsquo;utiliser plus efficacement les nutriments du sol. et engrais. Il convient de noter que les acides amin\u00e9s (lorsqu&rsquo;ils sont trait\u00e9s au d\u00e9but de la phase de floraison des fruits, des cultures mara\u00eech\u00e8res et des raisins) augmentent non seulement la fertilit\u00e9 des grains de pollen, mais prolongent \u00e9galement la dur\u00e9e de vie du pistil, ce qui am\u00e9liore consid\u00e9rablement la pollinisation.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La culture du tournesol est l&rsquo;un des domaines les plus rentables de la production agricole. C&rsquo;est l&rsquo;une des principales cultures d&rsquo;Ukraine, qui vous permet d&rsquo;obtenir environ 750 kg d&rsquo;huile sur 1 hectare de semis. En 2021, un record de 6,5 millions d&rsquo;hectares a \u00e9t\u00e9 r\u00e9serv\u00e9 au tournesol. La r\u00e9colte brute totale \u00e9tait de 16,3 millions [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9850,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[81,107],"tags":[101,104,221,222],"class_list":["post-1450","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-fr","category-des-articles","tag-recoltes","tag-tournesol","tag-nutrition","tag-les-rendements"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Alimentation foliaire du tournesol - France - Wonder Corporation<\/title>\n<meta name=\"description\" content=\"La fertilisation foliaire du tournesol contribuera \u00e0 faire de la culture du tournesol le secteur le plus rentable de la production agricole.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/wonder-corporation.com\/fr\/foliar-fertilization-of-sunflower\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alimentation foliaire du tournesol - 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