Читать книгу The Raisin Industry - Gustavus A. Eisen - Страница 43

—The preparation of the land for a currant vineyard is expensive, as the land is hardly ever level enough to admit of the vines being immediately planted. The surface is therefore first leveled and divided up in smaller cheeks or flats, each one surrounded by a bank. The whole is covered with a network of ditches, which are necessary for the perfect irrigation of the soil. Where there is water enough, the vineyards are irrigated in November and December, and are then flooded as often as practicable, the water sometimes standing on the ground for weeks in succession. In perfectly arranged vineyards, the irrigation is so managed that the water flows from one check to another, and is first shut off at the advent of the New Year, when the pruning and cultivation begins. By this plentiful irrigation, the ground becomes thoroughly soaked, and remains saturated until the next season, when rain again sets in and fills the irrigation canals. No summer irrigation is used in old vineyards, and in young vineyards only in case of great necessity.