La région de la Bagoué est une des grandes zones de production de la noix de cajou avec plus de 50 % des sols gravillonnaires. L’objectif de cette étude est de déterminer l’impact des éléments grossiers sur la production de la noix de cajou. Alors, 259 vergers d’anacardiers situés sur sol gravillonnaire ont été sélectionnés.Dans chaque verger, une fosse de dimension 1,5 m x 1 m x1 m a été creusée. Un échantillon a été prélevé le long du profil pédologique pour la détermination de la taille, du pourcentage pondéral et de la nature des éléments grossiers avec leur proportion. Le rendement de chaque verger a été déterminé.Les rendements de la combinaison des classes de taille, de pourcentage et de nature des éléments grossiers avec leur proportion ont été comparés. Il ressort que les éléments grossiers ont une taille inférieure à 10 mm et un pourcentage pondéral entre 5-60 %. Les éléments grossiers sont constitués d’au moins 75 % de concrétions ferrugineuses et au plus 15 % des graviers de quartz. Les sols contenant les éléments grossiers ayant une taille entre 2-3 mm, un pourcentage pondéral entre 15-45 % et une proportion de graviers de quartz de 3 % ont obtenu un rendement significativement élevé. Les Ferralsols contenant des éléments grossiers de petite taille, avec pourcentage pondéral variant de 15 à 45 % et une proportion de graviers de quartz de 3 % sont propices à la culture de l’anacardier dans la région de la Bagoué.
GESTION DE LA FERTILITE PHYSIQUE DU SOL : INCIDENCE DES ELEMENTS GROSSIERS SUR LA PRODUCTION DES ANACARDIERS (ANACARDIUM OCCIDENTALE) DANS LA REGION DE LA BAGOUE AU NORD DE LA COTE D’IVOIRE
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Country:
Côte d’Ivoire
Volume & Issue:
Volume 03, Issue 10, October 2021
Page No:
1858-1864
Abstract:
KeyWords:
Eléments grossiers, Fertilité physique du sol, Anacardiers, Production, Nord de la Côte d’Ivoire.