CIRCULAR NO 115
JANUARY, 1924
PURDUE UNIVERSITY AGRICULTURAL EXPERIMENT STATION LAFAYETTE, INDIANA
MANAGEMENT OF THE LIGHT COLORED CLAY AND SILT LOAM SOILS
A. T. Wiancko
Pi|C. 1. Effect of soil treatments on crop yields, Bedford Experiment Field. Average yields. 1917-1922:
No treatment	Lime	Lime and fertilizer
18.4 bushels com per acre	24.9 bushels corn per acre	38.5 bushels corn per acre
The combination of lime and fertilizer has produced average annual crop increases of 20.9 bushels of corn, 757 pounds of stover, 9.1 bushels of wheat, 899 pounds of straw, »nd 2438 pounds of clover and timothy hay, valued at $36.59, at an average cost of J11.04 for lime and fertilizer.
The object of this circular is to point out the characteristic needs of the light colored clay and silt loam soils of Indiana and t° suggest practical means and methods of making them more profitably productive. The term “light colored clay and silt loam” as here employed includes all the heavier light brown, yellowish, gray and whitish soils which the farmer commonly '-'alls ‘‘clay." The various soils in this group cover over one-half the total area of the state and one or another of them is found on over 75 per cent of the farms in the state. Their importance, therefore, is quite evident.
None of these soils are entirely unproductive but many are producing very small yields and most of them are not producing