{"id":22160,"date":"2020-08-06T11:17:36","date_gmt":"2020-08-06T09:17:36","guid":{"rendered":"http:\/\/profert.dz\/fr\/?p=22160"},"modified":"2022-09-14T13:31:40","modified_gmt":"2022-09-14T11:31:40","slug":"programme-de-culture-de-mais","status":"publish","type":"post","link":"https:\/\/profert.dz\/fr\/index.php\/2020\/08\/06\/programme-de-culture-de-mais\/","title":{"rendered":"Programme de culture de Ma\u00efs"},"content":{"rendered":"

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Programme de culture de Ma\u00efs
\nLes premiers r\u00e9sultats de l\u2019application du programme
\nD\u00e9marrage de la culture<\/h2>\n

Les premiers semis de la culture du ma\u00efs \u00e0 El Men\u00e9a ont d\u00e9but\u00e9 le 13 juillet 2020.\u00a0 Aujourd\u2019hui la culture est au stade 5 feuilles.<\/p>\n

Nous avons suivi les r\u00e9sultats de l\u2019application de notre programme chez les agriculteurs partenaires de Profert<\/strong>. Voici les premiers constats :<\/p>\n

1- Stade semis – lev\u00e9e<\/u>\u00a0:<\/strong> application de 3.5 qx\/ha<\/strong> de Weatfert<\/strong> au semis et 20 L\/ha<\/strong> d\u2019Humistar<\/strong> au stade 3 feuilles. On constate une lev\u00e9e homog\u00e8ne. Ce r\u00e9sultat est obtenu gr\u00e2ce\u00a0\u00e0\u00a0:<\/p>\n

– L\u2019efficacit\u00e9 de la formule Weatfert<\/strong> qui contient tous les \u00e9l\u00e9ments, en quantit\u00e9s suffisantes, n\u00e9cessaires au bon d\u00e9marrage de la culture offrant ainsi toutes les conditions d\u2019un bon d\u00e9veloppement qui est par ailleurs favoris\u00e9 par une bonne synergie entre les diff\u00e9rents \u00e9l\u00e9ments.<\/p>\n

– \u00a0La solubilit\u00e9 tr\u00e8s \u00e9lev\u00e9e de Weatfert<\/strong> qui se dissout instantan\u00e9ment au contact de l\u2019humidit\u00e9 ce qui permet \u00e0 tous ses \u00e9l\u00e9ments de se retrouver rapidement dans la solution du sol et donc disponibles pour \u00eatre assimil\u00e9s par les racines \u00e0 ce stade crucial du d\u00e9marrage de la culture.<\/p>\n

– \u00a0L\u2019action de l\u2019Humistar<\/strong>\u00a0qui permet d\u2019augmenter la capacit\u00e9 du complexe argilo-humique, d\u2019a\u00e9rer le sol et de retenir l\u2019humidit\u00e9.<\/p>\n<\/div>

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2- Stade 3 feuilles \u00e0 5 feuilles<\/u>\u00a0: <\/strong>\u00e0 la lev\u00e9e, l\u2019agriculteur a d\u00e9marr\u00e9 la fertilisation azot\u00e9e.\u00a0 Il a utilis\u00e9 40 kg d\u2019Azosul, <\/strong>fractionn\u00e9s en deux fois \u00e0 raison de 20 kg par apport. Azosul<\/strong> a permis un bon d\u00e9veloppement v\u00e9g\u00e9tatif des plants et a favoris\u00e9 la formation d\u2019une surface v\u00e9g\u00e9tative importante, donc de la synth\u00e8se de la chlorophylle, ce qui acc\u00e9l\u00e8re consid\u00e9rablement le d\u00e9veloppement des plants. \u00a0Azosul<\/strong> permet une fertilisation azot\u00e9e dont les pertes sont minimes compar\u00e9es \u00e0 celle de l\u2019ur\u00e9e dont les pertes peuvent atteindre 50 % voire plus par volatilisation. Azosul<\/strong> contient deux formes d\u2019azote\u00a0: une forme rapidement disponible et une autre forme progressivement lib\u00e9r\u00e9e pour accompagner les besoins de la plante dans le temps. Azosul<\/strong> est \u00e9galement caract\u00e9ris\u00e9 par\u00a0:<\/p>\n

– Une tr\u00e8s grande capacit\u00e9 d\u2019acidification du sol ce qui lib\u00e8re des \u00e9l\u00e9ments nutritifs bloqu\u00e9s notamment le P2<\/sub>O5<\/sub> et les oligo-\u00e9l\u00e9ments.<\/p>\n

– Une solution rapide et totale qui permet de se retrouver tr\u00e8s vite dans la solution du sol.<\/p>\n<\/div>

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3- Stade 5 feuilles<\/strong>\u00a0: les agriculteurs ont commenc\u00e9 les apports en oligo-\u00e9l\u00e9ments, \u00e0 savoir le Tradecitrus<\/strong>, Tradecorp Mn<\/strong>, Tradecorp Zn<\/strong> pour r\u00e9pondre aux besoins en Mangan\u00e8se (Mn) et Zinc (Zn), sachant que la culture du ma\u00efs est exigeante en ces deux oligo-\u00e9l\u00e9ments. Le Mn et le Zn renforcent la photosynth\u00e8se. Une carence en Zn impacte la f\u00e9condit\u00e9 des \u00e9pis et une carence en Mn r\u00e9duit la production des prot\u00e9ines.<\/p>\n

Au stade 5 feuilles, les agriculteurs ont apport\u00e9 le Trafos K<\/strong> qui stimule les d\u00e9fenses naturelles de la plante et pr\u00e9vient ainsi les attaques par les maladies et les ravageurs.<\/p>\n<\/div>

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Le d\u00e9sherbage<\/u>\u00a0:<\/strong> au semis l\u2019agriculteur a utilis\u00e9 le Prowl<\/strong> Aqua<\/strong> \u00e0 raison de 2.5 L\/ha. Au stade 5 feuilles les pivots d\u00e9sherb\u00e9s avec du Prowl<\/strong> Aqua<\/strong> sont tr\u00e8s propres comme le montre les illustrations ci-dessous.<\/p>\n<\/div>

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Le d\u00e9veloppement de la culture sera suivi \u00e0 tous les stades. Nous publierons ult\u00e9rieurement les r\u00e9sultats de ce suivi.<\/p>\n<\/div>

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CONTACT<\/h2><\/span>
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Yacine YAZZAG<\/strong>
\nAssistant technique c\u00e9r\u00e9ales
\nMobile: 0560 98 45 51
\nE-mail: yacine.yazzag@profert-dz.com<\/p>\n<\/div>

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