12 BULLETIN 47. 
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 
-£i 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 
