Irrigation in Portugal’s Douro Valley
Irrigation in Portugal’s Douro Valley Why Douro Valley Winegrowers Must Obtain Irrigation Authorization Before Watering Vineyards The vineyards of Portugal’s Douro Valley are among the most regulated and historically significant wine-producing areas in the world. The Instituto dos Vinhos do Douro e do Porto (IVDP) oversees the production of Port and Douro wines. It regulates
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