The Bulletin 



41 



good, substantial iiuaiicial returns on the investment. The method 

 in common use by the farmers should be such that their soils would 

 become more productive from year to year. The investigations that 

 have been conducted by the Division of Agronomy in previous years 

 have been carried on primarily to determine the most economical meth- 

 ods of fertilizing the various soil types in this and other counties of 

 the State and at the same time to take the information thus secured 



Fig. 7. — A crop of whoat on the Georgeville silt loam t.\ pe of soil. 



and apply it in conjunction with systems of crop rotation found suited 

 ior different conditions for the purpose of helping the farmer increase 

 the producing power of his soils. From information thus far secured 

 we are able to recommend methods which if followed by the farmers 

 of Union County will maintain their soils in a far more productive con- 

 dition than they are at the present time when the methods that are in 

 common practice are followed. 



In providing the necessary plant-food constituents as recommended 

 above for the different soils it is necessary to adopt, too, systems of 

 crop rotation if the best and most profitable returns per acre are to be 



