00612 a2200193 4500502002300000653002600023100002100049300001500070245011000085650002100195650001800216650001900234650001900253130000700272710009400279041000700373653002800380651001000408 aThèse d'exercice1 aSciences agronomiques aYekini, Bourahim aXII-147 p. aFertility evaluation for improvement of degraded "terre de barre" (in south of People's Republic of Benin aFERTILITE DU SOL aFERTILISATION aCARENCE DU SOL aANALYSE DU SOL lEn aAbomey-Calavi, Université nationale du Bénin, Faculté des Sciences Agronomiques, BJ bEn 1aProduction végétale aBENIN