Titolo: Optimisation des besoins en phosphore de la pomme de terre: Sources organiques et inorganiques (French Edition)
Editore: Editions Notre Savoir
Data di pubblicazione: 2024
Lingua: Francese
ISBN 10: 6207925246
ISBN 13: 9786207925247
Rilegatura: Brossura
Condizione: New

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Riassunto

Le phosphore est le deuxi�me �l�ment nutritif limitant apr�s l'azote. C'est l'un des �l�ments nutritifs cl�s qui influence le d�veloppement pr�coce de la culture et l'initiation des tubercules, la taille des tubercules et leur densit�. Le rendement final des tubercules est fonction de la nouaison, du taux de croissance des tubercules et de la dur�e de la croissance des tubercules. Le phosphore influence la croissance et le rendement des pommes de terre de plusieurs mani�res. La gestion du phosphore est un �l�ment essentiel des syst�mes de production de pommes de terre, car la pomme de terre a des besoins relativement �lev�s en P et utilise inefficacement le P du sol. Le phosphore favorise le d�veloppement rapide de la canop�e, la division des cellules des racines, la formation des tubercules et la synth�se de l'amidon. Une quantit� ad�quate de phosphore est essentielle pour optimiser le rendement des tubercules, leur teneur en mati�res solides, leur qualit� nutritionnelle et leur r�sistance � certaines maladies. L'efficacit� de l'utilisation du phosphore par la pomme de terre est moindre (10-15 % environ) car il s'agit d'une culture � racines peu profondes. Une culture saine de pommes de terre �limine du sol environ 25-30 kg de P2O5/ha, ce qui indique que les besoins en phosphore des pommes de terre sont bien plus �lev�s que ceux de la plupart des c�r�ales. Par cons�quent, ce livre est con�u pour enseigner l'optimisation des besoins en phosphore de la pomme de terre par le bi

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