Original research articles

Influence de la densité de plantation et du mode d'entretien du sol sur l'alimentation minérale de la vigne

Abstract

Effect of planting density and soil cultivation practices on leaves and musts mineral status of vine.

In a field experiment started in 1971 at Montreuil-Bellay (Valley of Loire) several planting densities with « Chenin » vine grafted on S04 rootstock, were compared with two soil management treatments (chemical weed control and permanent grass cover). Every year, mineral composition of leaves and musts is determined. The permanent grass cover increases Mg and P concentrations of leaves while the Zn concentration of leaves increases in the low density vines. A good positive correlation between the P percentage of leaves ant this of musts is obtained. The permanent grass cover decreases the N concentration of musts while the low density vines with chemical control increase this percentage.

Authors


René Morlat

editorialsecretary@oeno-one.eu

Affiliation : Unité Expérimentale Vigne et Vin, INRA, 42 rue Georges Morel, 49071 Beaucouzé cedex, France


Jacqueline Robichet

Affiliation : Station d'Agronomie, Institut National de la Recherche Agronomique, Route de St Clément, Beaucouzé, 49000 Angers (France)


Monique Sigogne

Affiliation : Institut National de la Recherche Agronomique 4 Station d'Agronomie, Angers


Michel Remoué

Affiliation : Institut National de la Recherche Agronomique, Domaine Expérimental Viticole, 49260 Montreuil-Bellay (France)


Gérard Venin

Affiliation : Station d'Agronomie, Institut National de la Recherche Agronomique, Route de St Clément, Beaucouzé, 49000 Angers (France)


Huguette Leon

Affiliation : Station d'OEnologie, Angers


Christian Asselin

Affiliation : Unité de Recherches sur la Vigne et le Vin (URVV), Centre INRA, 42 Georges Morel, 49071 Beaucouzé Cedex (France)

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