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Accueil Toutes les actualités agricoles Comment augmenter l’efficience d’utilisation des nutriments ? Comment augmenter l’efficience d’utilisation des nutriments ? L'un des principaux défis du secteur agricole français est d'être plus performant en réduisant la quantité d'intrants utilisés. Si l'on considère la nutrition des plantes, la réussite de ce défi nécessite d'une part de réduire l'utilisation massive d'engrais de synthèses et d'autre part de minimiser les pertes de nutriments pour augmenter l'efficience globale d'utilisation des fertilisants.
L'efficience d'utilisation des nutriments se résume en la capacité des cultures à absorber et à utiliser les nutriments afin de maximiser le rendement. Par conséquent, il s'agit d'une mesure de la façon dont les plantes utilisent les nutriments minéraux disponibles.
En effet, en augmentant l’efficience d’utilisation des nutriments on obtient aussi la réduction de l'impact environnemental des systèmes de culture. C'est particulièrement vrai si l'on parle d'azote, le principal nutriment limitant la croissance et le développement des plantes.
Actuellement, l'efficacité mondiale moyenne de l'utilisation de l'azote ne dépasse pas 50 %, ce qui signifie que seule la moitié de l'engrais azoté appliqué est réellement utilisé par la plante. Ce chiffre montre aussi l’ampleur de la perte économique pour les agriculteurs, encore plus importante en raison de la conjoncture actuelle et des prix élevés des engrais.
Quels sont donc les moyens pour valoriser l'efficience d'utilisation des nutriments ? Tout d’abord, certainement, les préconisations agronomiques adaptées sont primordiales : identification du bon stade d'application et calcul de la bonne dose sont des éléments nécessaires à la bonne utilisation des engrais.
Ensuite, l’utilisation de solutions innovantes comme par exemple, les biostimulants, en particulier les hydrolysats de protéines d’origine végétale, permet également d’améliorer l’efficience des unités fertilisantes.
En utilisant des biostimulants à base d'hydrolysats de protéines végétales, il a été prouvé qu’il est possible de réduire la dose d'application d'engrais chimiques de 15 à 20 % en garantissant en même temps un niveau de rendement satisfaisant pour les agriculteurs.
Les biostimulants sont capables d'améliorer directement et indirectement l'efficacité d'utilisation des nutriments des cultures grâce à leurs nombreux avantages, tels que l’amélioration du métabolisme des plantes et de l'absorption et l'utilisation des nutriments pour valoriser les engrais appliqués. Les biostimulants végétaux ont la capacité d'améliorer l’efficience d’utilisation de nutriment en particulier lorsque la disponibilité des nutriments est faible, ce qui signifie que moins d'engrais chimiques peuvent être appliqués pour obtenir un rendement identique, voir meilleur.
Aujourd'hui, il est urgent de révolutionner les pratiques agricoles pour réussir les défis auxquels notre secteur est confronté et l’intégration dans le plan de fertilisation de biostimulants capables de rendre plus efficace l'utilisation des engrais traditionnels est l’une de ces solutions.
Autres articles sur le même thème Cet article a été rédigé par notre partenaire. La rédaction d’aladin.farm n'a pas participé à sa production. Pour plus d’informations sur ce fournisseur et/ou ses produits, contactez vos référents en coopérative/négoce.
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