Recent results from research at NBR indicate that application of lime on soils with a pH higher than 7,0 increases sugar yield significantly. In this proposed project we want to go further and investigate the long-term effects of lime in the existing field experiments. An important question is whether the increase in sugar yield increase remains also in the second rotation after liming. Further to what extent the pH, calciumcontent and other soil factors are changed 2,5 and 3,5 years after liming on different soil types and tillage. Also important is if the reduction Aphanomyces root rot of sugar beet remains the second rotation after liming. In a cropping system based on the principles of IPM, liming can be a valuable tool. The material consists of 52 field experiments on different sites and cultivated with the rotation of the farm. The sites will be analyzed for plant nutrition and soil borne diseases. Finally, the sugar yield will be measured in the second rotation after liming.