Apport de matières fertilisantes avant plantation de vigne. Résultats d'un essai en sol de Graves du Bordelais
Jacques Delas,
Ch. Molot,
Jean-Pierre Soyer
Affiliations
Jacques Delas
INRA, Station d'Agronomie, Centre de Recherches de Bordeaux, BP 81,33883 Villenave d'Ornon Cedex (France)
Ch. Molot
Ecophysiologie et Agronomie Viticole, UMR OEnologie Ampélologie, INRA Centre de Bordeaux, BP81 33883 Villenave d’Ornon, France
Jean-Pierre Soyer
I.S.V.V., UMR Écophysiologie et Génomique Fonctionnelle de la Vigne, INRA, University of Bordeaux 2, University of Bordeaux 1, ENITA, Villenave d'Ornon, France; INRA, Domaine de la Grande Ferrade, BP 81, 33883 Villenave d'Ornon, France
In an open-field assay on a sandy, gravelly soil quite degraded the influence of addition of some fertilizers on the vine, before planting, was studied. A complete basic fertilizer with joined organic, calcary and phospho-potassic elements enhances plant development and gives a normal crop yield four years after planting. No or incomplete basic fertilizer leads to very low crop yields and is followed by a replacement of a large number of vinestocks.
