Humus = partie la plus finement décomposée de la matière organique (base de la fertilité du sol). L’humus représente l’ensemble des substances organiques provenant de l’humification*.
*L’humification est le premier processus de décomposition des matières d’origine animale et végétale.
Les pratiques agricoles d’usage ont considérablement réduit la proportion de matière organique dans les sols : excès de labour, rotations intensives et réduction des apports de matière organique (fumier et lisier).
Constat : en 100 ans, diminution d’1/3 de la matière organique des sols.
L’agriculture doit être rentable et durable. Aujourd’hui, notre challenge est de trouver une solution à la faible efficacité des engrais minéraux ainsi qu’à l’immobilisation et la perte de nutriments*.
* Des études affirment que les pertes et les immobilisations du phosphore et des oligoéléments s’élèvent jusqu’à 85-90% dans le nord de l’Europe.
Les acides humiques : le plus qui fait la différence
Les acides humiques ont une gamme d’actions plus large comparés aux acides fulviques. Humifirst contient des acides humiques et fulviques. La fraction humique améliore la stabilité structurelle du sol alors que la fraction fulvique accélère la complexification des éléments nutritifs.
Les acides humiques, c’est le petit plus qui apporte de nombreux effets bénéfiques par rapport à la simple utilisation d’acides fulviques.
Acides humiques
- Dégradation lente dans les sols
- Rôle structurel : action lente et sur le long terme
- Peu lessivables
- Bonne capacité d’échange des cations
- Gamme plus variée de groupements fonctionnels
- Stimulation de la croissance et du développement racinaire
- Solubles uniquement dans des solutions à pH alcalin
Acides fulviques
- Dégradation rapide dans les sols
- Rôle complexant : action rapide
- Facilement lessivables
- Bonne capacité d’échange des cations
- Moins de groupements fonctionnels
- Forte stimulation de l’assimilation des NO3– et d’autres éléments nutritifs
- Solubles à pH acide et alcalin
La léonardite américaine : une garantie de qualité
Une concentration élevée en extraits humiques et un équilibre stable entre acides humiques et acides fulviques sont des caractéristiques propres à la Léonardite et à Humifirst.
Garantie de sécurité
Absence de sodium, de métaux lourds, de germes et de semences d’adventices
Rapport C/N élevé
Indicateur de l’excellente humification de la Léonardite
pH élevé
Seuls les produits présentant un pH élevé ont une bonne teneur en acides humiques
Nombre élevés de groupes réactifs
Seuls les acides humiques extraits de Léonardite oxydée ont un nombre élevés de groupes réactifs
Humifirst
Concentré liquide d’acides humiques et fulviques
- Extraits humiques totaux: 15% p/p (165 g/L)
- Acides humiques: 12% p/p (132 g/L)
- Acides fulviques: 3% p/p (33 g/L)
Humifirst WG
Concentré soluble d’acides humiques et fulviques
- Extraits humiques totaux: 65% p/p
- Acides humiques: 53% p/p
- Acides fulviques: 12% p/p
Utilisations
- Pulvérisation au sol
- Irrigation fertilisante
- Traitement de semences
- Amélioration des engrais granulés
- Amélioration de substrats et milieux de culture
Cliquez sur les flèches de part et d’autre de l’exemple et découvrez d’autres essais et cultures…
Humifirst,
produire plus avec autant de fertilisants
Leurs actions augmentent significativement l’absorption des éléments nutritifs par la plante et le rendement.
« Humifirst en culture de pomme de terre »
Avantages de l’application de Humifirst en culture de pomme de terre dans le Nord de la France.
Humifirst
L’engrais du futur
” Les essais scientifiques et les utilisateurs satisfaits le prouvent, Humifirst vous garantit plus ! ”
« Humifirst assure un démarrage vigoureux »
Humifirst aide les agriculteurs autour du monde en assurant un démarrage vigoureux des cultures.
Témoignage d’un producteur de maïs en Belgique.
En début de croissance, certains facteurs limitent l’assimilation du phosphore (pH, froid, faible mobilité dans le sol, …).
Humifirst combiné à un engrais à base de phosphore, c’est la garantie d’une meilleure efficacité de l’engrais et d’une meilleure disponibilité du phosphore.
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Registry of company: Volume 18655; Sheet M-324710; Page 90.
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Privacy-Policy
Owner of the Web Site
Name: Trade Corporation International, S.A. (hereinafter Tradecorp).
Address: 498 Alcalá Street, 2nd Floor, Madrid.
Company ID number: A-46715413.
Registry of companies: Volume 18655; Sheet M-324710; Page 90.
Contact phone: +34 913 273 200.
Contact email: global@tradecorp.sapec.pt.
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