Correct management of soil and irrigation is a vital factor in modern viticulture, due to the influence of the water balance of the vineyard on wine quality and the environmental impact of agricultural practices on vineyard soils. In order to innovate in this area, the NEIKER-Tecnalia technological centre is carrying out research on the influence of temporary cover crop and different irrigation regimes –for the typical flat and sloping soils of Rioja Alavesa region– on yield, vine vigour and grape and wine quality. The initial results when cover crops are planted show a reduction in the water availability of the vineyard, reflected in a reduction of yield and vigour, as well as in an improvement of the quality parameters of the must and wine. The results of the study can be used to help grapegrowers acquire a better understanding of their vineyards and adjust their management practices so as to obtain the highest possible quality.