12 BULLETIN 47, U. S. DEPARTMENT OF AGRICULTURE. 



A maximum acreage of potatoes is sought to secure the indirect 

 benefits from the increased productivity of the soil, the control of 

 weeds, and the use of by-products for feeding and manure. 



Much of the United States is too hot in summer to compete with 

 Germany in potato growing. Here corn fills the place very effectively. 

 The most northern States may effect great improvements through 

 better varieties, more liberal fertilizing, more thorough culture, and 

 better control of insects and diseases. 



We must hereafter produce enough potatoes to supply all our 

 needs, as most sources of foreign imports have been closed by a plant- 

 disease quarantine. 



To do this economically we should find a profitable outlet for a 

 surplus production, so that the producer may always receive a return 

 for his crop and the consumer always purchase at a reasonable price. 



The most promising use for culls and surplus potatoes appears to 

 be in feeding hogs. There are possibilities in starch and alcohol and 

 some hope of adapting the method of drying now used in Germany. 



ADDITIONAL COPIES of this publication 

 -iV may be procured from the Superintend- 

 ENT of Documents, Government Printing 

 Office, Washington, D. C , at 5 cents per copy 



WASHINGTON \ GOVERNMENT PRINTING OFFICE: 1913 



