Method for growing trained vines and device therefor

A - Human Necessities – 01 – G

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A01G 13/02 (2006.01) A01G 13/04 (2006.01) A01G 17/02 (2006.01)

Patent

CA 2224482

Process for growing grapes trained in rows, designed to prevent the effect of frost and promote good fruiting, consisting in placing a plastic film (8) over each row. The film is supported by at least one top wire (2) located in the upper part of a row of stakes (1) and spacers (5, 7) to separate the two sheets of film (8). The film is held by ties (9) secured in different places on the lower edges (11) and connected to anchoring devices (12, 13) preferably located on the stakes. The lower edges (11) of the film (8) are placed more or less at the level of and preferably slightly below the height at which the vine (V) develops, leaving a large opening between these edges (11) for air circulation. The air circulation is possible because the lateral parts of the film located above the spacers (5, 7) have holes (14) for ventilation of the vine inside the film. The film is placed shortly before the start of growth and left at least until there is no further risk of frost.

Procédé de culture de la vigne palissée en rangs, destiné notamment à éviter l'effet du gel et à favoriser une bonne fructification, du type consistant à placer à cheval sur chaque rang de vigne un film (8) en matière plastique, ce film étant supporté, d'une part par au moins un fil supérieur (2) situé à la partie supérieure d'une rangée de piquets (1), et d'autre part par des éléments écarteurs (5, 7) pour écarter les deux pans du film (8), ce dernier étant maintenu par des attaches (9) assujetties de place en place sur ses bords inférieurs (11) et reliées à des organes d'ancrage (12, 13) situés de préférence sur lesdits piquets. On dispose lesdits bords inférieurs (11) du film (8) sensiblement au niveau et de préférence, légèrement en-dessous de la hauteur à laquelle la végétation de la vigne (V) se développe, en laissant entre ces bords (11) une ouverture importante permettant une circulation d'air grâce au fait que les parties latérales du film qui sont situées au-dessus des éléments écarteurs (5, 7) sont munies d'orifices (14) permettant la ventilation de la vigne à l'intérieur du film qui est mis en place peu de temps avant le démarrage de la végétation pour le laisser au moins jusqu'à la fin des risques de gelée.

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