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Since conventional sampling and laboratory soil analysis do not provide a cost effective capability to obtain georeferenced measurements with adequate frequency, different on-the-go sensing techniques have been attempted. One such recently commercialized sensing system combines mapping of soil electrical conductivity and pH. The concept of direct measurement of soil pH has allowed for a substantial increase in measurement density. In this publication, the analysis of variable rate lime prescription maps is discussed. Liming rates generated from on-the-go measurements can result in improved prediction of liming requirement compared to the conventional 1 ha grid sampling (RMSE = 1354 versus 2506 kg/ha)