Читать книгу The Raisin Industry - Gustavus A. Eisen - Страница 21

—The yield of Malaga vineyards varies of course. The best yield eight or nine tons of grapes to the acre,—just like those of California. But there is a great difference between new and old vineyards. In many vineyards where formerly the yield was nine tons, the soil has been so exhausted by continuous croppings that to-day, even with manuring, two or three tons of grapes must be considered a high yield.