The vine-growing

Training the soils: one of the motivations for turning over to organic agriculture in 1998 was the work of the soil. The planting with grass (50 or 25 % of the surface), started in the 1980s, was kept, the remaining surfaces being cultivated since 1998.

These two techniques improve the structure of the soil, the resistance to erosion and its ability to retain water in summer. Moreover, they force the roots of the vineyard to go more deeply into the subsoil, allowing the grapes to be a lot marked by their soil.

Fertilizing: since 1998 the chemical fertilizers have been given up in favour of the compost made at the Château. Rich in microbial life, this compost boosts the activity of the microorganisms of the soil. Made from cattle manure, it is energized by the supplies of biodynamic preparation.

The schistous soils, which are naturally acid, need to be looked after through some traditional liming.

Protection against diseases:
Protected according to the methods of integrated control since 1994, the Château de Passavant vineyard has thus stopped using any phytosanitary product of synthesis since 1998.


Today the only used natural products are :

- copper
- sulphur
- talcum
- essential oils

These products are spread with a sprayer “side after side” limiting the drift and allowing the reduction of the copper quantities.


Protection against devastators :

The sub-wildlife and returning to natural balances in the vineyard minimize the problems linked to the devastators. However the grape-worms require a bacillus thuringiensis treatment or one by sexual confusion on a part of the vineyard.

Pruning :
Short, it limits the yield which allows to optimize the expression of the soil in the wines and to better control the vine which, without exuberance, will be less sensitive to diseases and thus will need less treatments.

SCEA David-Lecomte | 49560 Passavant-sur-Layon

Téléphone : +33 2 41 59 53 96 | Fax : 02 41 59 57 91

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