To determine the most profitable rates of applying lime for different crops on different soil types in the State, and to determine if possible the hydrogen ion concentration for the most economic yields of the different crops on different soil types. Plots will be laid out at Blacksburg, Staunton, Williamsburg, Holland, and Martinsville, and limed at different rates, Yields will be kept of crops grown at each locality on limed plots and the hydrogen ion concentration will be determined for at least two localities. / M.S.